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http://hdl.handle.net/2445/180908
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DC Field | Value | Language |
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dc.contributor.advisor | Sardanyés Cayuela, Josep | - |
dc.contributor.advisor | Miguel López, María del Carmen | - |
dc.contributor.author | Sastre Jachimska, Cristina | - |
dc.date.accessioned | 2021-10-29T16:15:44Z | - |
dc.date.available | 2021-10-29T16:15:44Z | - |
dc.date.issued | 2021-07 | - |
dc.identifier.uri | http://hdl.handle.net/2445/180908 | - |
dc.description | Treballs Finals de Grau de Física, Facultat de Física, Universitat de Barcelona, Curs: 2021, Tutors: Josep Sardanyés, M. Carmen de Miguel | ca |
dc.description.abstract | Hypercycles are cyclic catalytic systems formed by replicating species, conceived in the 1970’s as a solution to the so-called information crisis or Eigen’s paradox. So far, hypercycles have considered only cooperation, together with the emergence of so-called catalytic short-circuits and parasites. More recently, the impact of functional shifts (the change from cooperation to degradation or predation by one of the species) has been investigated in both discrete- and continuous-time systems. These previous models, however, included these shifts in an implicit manner, assuming that some species or a given fraction of them changed cooperation. Here a simple model for a two-species hypercycle is proposed, in which one of the species explicitly produces a degrader phenotype due to mutational processes, where the effects of cleavage and predation have been studied. We have identified a saddle-node bifurcation separating coexistence from co-extinctions, involving bistable dynamics before the bifurcation occurs. Although the effects of predation have been found to be damaging, cleavage turns out to be, to some extent, beneficial | ca |
dc.format.extent | 5 p. | - |
dc.format.mimetype | application/pdf | - |
dc.language.iso | eng | ca |
dc.rights | cc-by-nc-nd (c) Sastre, 2021 | - |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/3.0/es/ | * |
dc.source | Treballs Finals de Grau (TFG) - Física | - |
dc.subject.classification | Hipercicles | cat |
dc.subject.classification | Sistemes dinàmics diferenciables | cat |
dc.subject.classification | Treballs de fi de grau | cat |
dc.subject.other | Hypercycles | eng |
dc.subject.other | Differentiable dynamical systems | eng |
dc.subject.other | Bachelor's theses | eng |
dc.title | Dynamics of emerging functional shifts in cooperative systems | eng |
dc.type | info:eu-repo/semantics/bachelorThesis | ca |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | ca |
Appears in Collections: | Treballs Finals de Grau (TFG) - Física |
Files in This Item:
File | Description | Size | Format | |
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SASTRE JACHIMSKA CRISTINA_4253616_assignsubmission_file_TFG-Sastre-Jachimska-Cristina.pdf | 2.22 MB | Adobe PDF | View/Open |
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