Search results for "exaptation"
showing 6 items of 6 documents
Bird and amphipod parasites illustrate a gradient from adaptation to exaptation in complex life cycle.
2010
6 pages; International audience; Trophically transmitted parasites modify the phenotype of their hosts, sometimes in a way that facilitates transmission. Parasite-induced changes can be either part of a manipulative strategy evolved to improve the transmission success of the parasite, or simply by-products of infection with no health effect. In the former case, manipulation is regarded as a parasite adaptation driven by the probability of being eaten by a suitable next host. Here, we consider the fact that manipulation may also be an 'exaptation': a trait that evolved for a certain use, but which has been co-opted for a new use. According to this view, features built by natural selection fo…
Urban Circular Metabolism as a Generator of Value and Resilient Communities. Creative Recycling of Industrial Architecture: The Case of Nordkraft (Aa…
2022
Aalborg has modified its urban metabolism to overcome the economic-industrial crisis and tackle climate change. The city, however, has not changed its DNA. Without distorting its identity as an industrial city, it has been able to respond to new and unpredictable needs through a process of architectural and urban exaptation. Nordktraft is a significant part of this regeneration process based on sustainability, both from an environmental and socio-cultural point of view, with a vision that is particularly focused on physical health and the growth of the relational life of the population. The vision that inspired the Nordkraft project is that diversity is the most powerful factor fueling resi…
How to boost clusters and regional change through cooperative social innovation
2020
The aim of this paper is to illustrate how social innovation is promoted and spread by cooperative clusters in order to develop regional change. This paper focuses on the main drivers of the spreading and exaptation processes of social innovation. The cooperative cluster model, the exaptation concept, the top-down approach, the meso-institutions concept and the meso-level perspective are used to capture the strategic approach of spreading social innovation. The study analyses two successful clusters: Mondragon, made up of industrial SMEs, and Anecoop, an agricultural cooperative group, both leading clusters in their respective region. Qualitative methodology is used to compare both case stu…
The evolution of Catalan inchoative verbs from the 13th century to the 16th century
2021
En aquest treball, analitzem la subclasse de verbs incoatius del català, pertanyent a la tercera conjugació, aplicant el concepte d’exaptació (Lass 1990), que serveix per a explicar canvis que consisteixen en la reutilització de material morfològic no funcional: en els verbs incoatius, el procés d’exaptació consisteix en el reciclatge d’un afix lèxic com a increment del radical quan perd el valor semàntic inicial de ‘canvi d’estat’ i queda relegat a certs verbs de la tercera conjugació. Aquesta reutilització funcional comporta l’aparició d’una subclasse de verbs dins de la tercera conjugació que, a causa de la seua estabilitat, ha esdevingut el model flexiu majoritari d’aquesta conjugació. …
L’attualità dell’inattuale metodo genealogico nietzscheano
2017
The subject of this paper is the untimely character in Nietzsche’s philosophy considered from a contemporary hermeneutic standpoint. Assuming that Nietzsche has worked outside the conceptual and behavioural schemes ruling his age, I will address the question of which part of his untimely thought is still timely. My aim is to show that this part is the genealogic method and that the genealogy is a way to intend knowledge characterized by a specific Weltanschauung. Indeed, the Nietzsche’s genealogy is founded on the distinction between the origin and the ultimate usefulness. What is now a determinate phenomenon or the meaning of a term is something different from and not teleologically tied t…
La flessibilità dell’organizzazione biologica. Strutture e funzioni alla luce di un modello gerarchico e pluralista dell’omologia
2016
Ciò che si intende mettere in evidenza nel presente saggio è come l’assunzione di un paradigma gerarchico dell’organizzazione biologica consentirebbe di fornire una nuova formulazione del concetto di omologia e conseguentemente dell’unità dell’evoluzione. Si vedrà, infatti, come i concetti di omologia, analogia, omoplasia, convergenza e parallelismo possano essere considerati al di fuori delle opposizioni omologia vs. analogia, omogenia vs. omoplasia, parallelismo vs. convergenza. Piuttosto tali concetti si riferiscono a piani e livelli biologici che sono diversi, ma in relazione l’uno con l’altro nel mondo complesso dell’evoluzione, poichè il mondo biologico è esso stesso gerarchico, ossia…