In the context of a larger project whose purpose was to comparatively analyze the associations of returnees in different autonomous communities, the need arose to specifically analyze the websites of these groups from a semiotic, discursive and communicational approach. The project required the creation of an analysis model based on a bibliographic review that would allow studying the sites in a comprehensive manner and that would take into account the new communicational paradigms. After exploring analysis models based on obsolete paradigms, (...) this research shows the design and validation of a website analysis proposal, in which two perspectives are differentiated and correlated: the technical aspects of the cyber genre and its discursive characteristics. (shrink)

El martes 26 de abril de 2016 en la Universidad Pontificia Bolivariana de Medellín, en el curso “De la analítica a los acto de habla” del Doctorado en Filosofía, tuvimos la oportunidad de compartir y hacer una conversatorio con el filósofo mexicano Dr. Alejandro Tomasini Bassols, investigador del Instituto de Investigaciones Filosóficas y profesor de filosofía en la Facultad de Filosofía y Letras de la UNAM. El profesor Tomasini es uno de los investigadores más reconocidos en la obra del Filósofo (...) austriaco Ludwig Wittgenstein, además de haber desarrollado una importante obra alrededor de la tradición analítica y de algunos problemas actuales como la discusión sobre la pena capital. También el profesor Tomasini en su visita a Colombia, inicialmente participó en Medellín con una conferencia titulada “Derecho y objetividad”, en la Universidad Pontificia Bolivariana y luego en la Feria del Libro de Bogotá –FILBO- realizó la presentación y conferencia del libro Hacer mundos: el nombrar y la significatividad. Previo a su viaje a Bogotá, interactuó con el curso doctoral en filosofía y de este encuentro académico presentamos el siguiente diálogo. (shrink)

Common ancestry is a central feature of the theory of evolution, yet it is not clear what “common ancestry” actually means; nor is it clear how it is related to other terms such as “the Tree of Life” and “the last universal common ancestor”. I argue these terms describe three distinct hypotheses ordered in a logical way: that there is a Tree of Life is a claim about the pattern of evolutionary history, that there is a last universal common ancestor (...) is an ontological claim about the existence of an entity of a specific kind, and that there is universal common ancestry is a claim about a causal pattern in the history of life. With these generalizations in mind, I argue that the existence of a Tree of Life entails a last universal common ancestor, which would entail universal common ancestry, but neither of the converse entailments hold. This allows us to make sense of the debates surrounding the Tree, as well as our lack of knowledge about the last universal common ancestor, while still maintaining the uncontroversial truth of universal common ancestry. (shrink)

A common view is that species occupy a unique position on the Tree of Life. Evaluating this claim requires an understanding of what the Tree of Life represents. The Tree represents history, but there are at least three biological levels that are often said to have genealogies: species, organisms, and genes. Here I focus on defending the plausibility of a gene-based account of the Tree. This leads to an account of species that are determined by gene genealogies. On this view, (...) an exclusive group is a group of organisms that forms a clade for a higher proportion of the genome than any conflicting clade. Taxa occupy a unique position in what can be called the ‘primary concordance tree’. But each gene has its own historical ‘Tree of Life’. I conclude by arguing that both organismal pedigrees with their corresponding Tree as well as gene genealogies and their trees are objectively real and play important, but different, roles in biological practice. (shrink)

Bayesian methods have become among the most popular methods in phylogenetics, but theoretical opposition to this methodology remains. After providing an introduction to Bayesian theory in this context, I attempt to tackle the problem mentioned most often in the literature: the “problem of the priors”—how to assign prior probabilities to tree hypotheses. I first argue that a recent objection—that an appropriate assignment of priors is impossible—is based on a misunderstanding of what ignorance and bias are. I then consider different methods (...) of assigning prior probabilities to trees. I argue that priors need to be derived from an understanding of how distinct taxa have evolved and that the appropriate evolutionary model is captured by the Yule birth–death process. This process leads to a well-known statistical distribution over trees. Though further modifications may be necessary to model more complex aspects of the branching process, they must be modifications to parameters in an underlying Yule model. Ignoring these Yule priors commits a fallacy leading to mistaken inferences both about the trees themselves and about macroevolutionary processes more generally. (shrink)

A phylogeny that allows for lateral gene transfer (LGT) can be thought of as a strictly branching tree (all of whose branches are vertical) to which lateral branches have been added. Given that the goal of phylogenetics is to depict evolutionary history, we should look for the best supported phylogenetic network and not restrict ourselves to considering trees. However, the obvious extensions of popular tree-based methods such as maximum parsimony and maximum likelihood face a serious problem—if we judge networks by (...) fit to data alone, networks that have lateral branches will always fit the data at least as well as any network that restricts itself to vertical branches. This is analogous to the well-studied problem of overfitting data in the curve-fitting problem. Analogous problems often have analogous solutions and we propose to treat network inference as a case of model selection and use the Akaike Information Criterion (AIC). Strictly tree-like networks are more parsimonious than those that postulate lateral as well as vertical branches. This leads to the conclusion that we should not always infer LGT events whenever it would improve our fit-to-data, but should do so only when the improved fit is larger than the penalty for adding extra lateral branches. (shrink)

There is a remarkable gap in the academic literature when it comes to group navigation, and procedural metacognition in group navigation is an important but virtually unexplored topic. The present paper aims to fill this gap by providing an account of how metacognitive feelings evaluate and regulate group navigational processes. The paper reviews animal studies and ethnographic work to elucidate three exiting processes in human group navigation: many-wrongs, leadership and emergent sensing. This is followed by an analysis of the role (...) of procedural metacognition in the navigational processes involved in each of these three processes. This analysis shows that procedural metacognition serves to regulate and evaluate group navigation in a flexible, process-specific way. When performance issues arise during group navigation, the emergence of negative affective states makes the navigational process conspicuous, prompting a modulation of said process. (shrink)

The present paper explores the phenomenology of disorientation and its relationship with self-consciousness. Section 1 discusses previous literature on the links between self-location and self-consciousness and proposes a distinction between minimal self-location and integrated self-location. The double aim of the paper is to use this distinction to deepen our understanding of spatial disorientation, and to use the phenomenology of disorientation to elucidate the role that integrated self-location plays in shaping self-consciousness. Section 2 starts by looking at the experience of being (...) “turned around”, which is a common experience of disorientation. This analysis leads to the conclusion that integrated self-location is transmodal and depends on all three egocentric axes, and that disorientation destabilizes this integrated self-location. Section 3 explores a corpus of reports of disorientation episodes and highlights four key characteristics of these experiences and their links to self-consciousness, focusing on the transformations in both the lived body and the experience of space. The central thesis of this paper is that during disorientation a destabilization of integrated self-location results in a diminished form of self-consciousness. (shrink)

This paper aims to offer an account of affective experiences within Predictive Processing, a novel framework that considers the brain to be a dynamical, hierarchical, Bayesian hypothesis-testing mechanism. We begin by outlining a set of common features of affective experiences that a PP-theory should aim to explain: feelings are conscious, they have valence, they motivate behaviour, and they are intentional states with particular and formal objects. We then review existing theories of affective experiences within Predictive Processing and delineate two families (...) of theories: Interoceptive Inference Theories and Error Dynamics Theories. We highlight the strengths and shortcomings of each family of theories and develop a synthesis: the Affective Inference Theory. Affective Inference Theory claims that valence corresponds to the expected rate of prediction error reduction. In turn, the particular object of a feeling is the object predicted to be the most likely cause of expected changes in prediction error rate, and the formal object of a feeling is a predictive model of the expected changes in prediction error rate caused by a given particular object. Finally, our theory shows how affective experiences bias action selection, directing the organism towards allostasis and towards optimal levels of uncertainty in order to minimise prediction error over time. (shrink)

A natural starting place for developing a phylogenetic species concept is to examine monophyletic groups of organisms. Proponents of “the” Phylogenetic Species Concept fall into one of two camps. The first camp denies that species even could be monophyletic and groups organisms using character traits. The second groups organisms using common ancestry and requires that species must be monophyletic. I argue that neither view is entirely correct. While monophyletic groups of organisms exist, they should not be equated with species. Instead, (...) species must meet the more restrictive criterion of being genealogically exclusive groups where the members are more closely related to each other than to anything outside the group. I carefully spell out different versions of what this might mean and arrive at a working definition of exclusivity that forms groups that can function within phylogenetic theory. I conclude by arguing that while a phylogenetic species concept must use exclusivity as a grouping criterion, a variety of ranking criteria are consistent with the requirement that species can be placed on phylogenetic trees. (shrink)

La migración internacional nos enfrenta con problemas irresolubles desde la figura moderna del Estado nacional, su concepto de ciudadanía y su noción de justicia. Juan Carlos Velasco critica las limitaciones y la orientación de las políticas contemporáneas que nos hacen percibir a la migración como una “invasión”, y propone un modo radicalmente diferente de entender e intervenir el fenómeno desde lo trasnacional. Nacer de uno u otro lado de una línea divisoria es un evento azaroso, no obstante delimitar la (...) frontera es una construcción histórico-política: la desigualdad en las oportunidades que ofrecen las naciones es una situación estructural de injusticia que se perpetúa con las políticas de exclusión de los migrantes y la deslegitimación de su derecho a buscar una vida mejor. Esa circunstancia genera fracturas sociales, injustificables pero normalizadas, que imposibilitan alcanzar la justicia global. Velasco presenta un análisis completo que abarca las dimensiones política, jurídica y moral del tema, en el que lleva a la filosofía política a un terreno práctico del que se desprenden las claves para entender y actuar en esta nueva era en la que, debido a los conflictos sociales y políticos, la migración vuelve a ser argumento de discusión relevante. (Texto de la CONTRAPORTADA del libro). (shrink)

This paper investigates ontological dimensions of the blockchain by asking what kind of socio-technical object bitcoin is. It discusses both blockchain's political qualities and the political forms enabled by its emergence. It first observes recent approaches to the ontology of money and the political qualities of the ledgers used by the current fractional reserve banking model. It then directs the same questions at blockchain technology. The paper discusses an ontology proposed by Ole Bjerg and argues in favour of a mixed-ontology (...) approach to blockchains. It then questions the political qualities of the distributed ledger as a digital object and highlights the apparent absence of authority figures in the model. Finally, it argues that the political ontology of the blockchain can be framed as the displacement of authority from institutional actors into instrumental control of trust, in a dynamically distributed environment. (shrink)

RESUMENEl artículo plantea la visión cartesiana del problema mente/cerebro y hace ver cómo su concepción ontológica dualista, presente en su concepción del hombre, y de la que han participado otros eminentes estudiosos del problema, debe ser superada desde los planteamientos actuales de la neurociencia. No es necesario postular en el hombre una fuerza especial para explicar determinados fenómenos cognitivos. Debería bastar la actividad cerebral para explicar cualquier actividad humana, incluida la activad cognitiva. La mentalidad no es separable del cerebro, aunque (...) también es cierto que se pueden simular determinadas operaciones cognitivas en un artefacto mecánico.PALABRAS CLAVEDESCARTES – DUALISMO – NEUROCIENCIA – MENTE ABSTRACTThe article discusses the Cartesian view of the mind/brain problema and shows how its dualistic ontological conception, framed within his notion of man, equally assumed by other eminent specialists, should be overcome from the current statements of neuroscience. It is not necessary to acknowledge in man a special power to explain some cognitive phenomena. The neural activity should be enough to explain any human activity, the cognitive one included. The mental process cannot be separated from the brain, although in fact some cognitive operations can be simulated by a mechanic device.KEYWORDSDESCARTES – DUALISM – NEUROSCIENCE – MIND. (shrink)

Common ancestry is one of the pillars of Darwin’s theory of evolution. Today, the Tree of Life, which represents how all life is genealogically related, is often thought of as an essential component in the foundations of biological systematics and so therefore of evolutionary theory – and perhaps all of biology itself. It is an iconic representation in biology and even penetrates into popular culture.

The project of this paper is to understand what a phylogenetic tree represents and to discuss some of the implications that this has for the practice of systematics. At least the first part of this task, if not both parts, might appear trivial—or perhaps better suited for a single page in a textbook rather than a scholarly research paper. But this would be a mistake. While the task of interpreting phylogenetic trees is often treated in a trivial way, their interpretation (...) is tied to foundational conceptual questions at the heart of systematics—questions whose answers are hotly disputed. I have previously argued that widely shared ideas about the meaning and interpretation of phylogenetic trees are inconsistent with species concepts other than some genealogical version of a phylogenetic species concept (Velasco 2008). Here I rely on a similar approach and concentrate on the implications of the necessary conditions underlying the inferences that we make using phylogenetic trees. I argue that common practices for the interpretation and use of trees are in conflict and that unacceptable principles about species as units of phylogeny must be given up. According to the view that I will develop, all phylogenetic trees depict the history of populations. The branches on trees represent collections of population lineages through time and the splits represent population lineage splits. This is true regardless of whether the tips of the trees are themselves populations, or are species or higher taxa. Although this conclusion might be paired naturally with a view that species must be monophyletic groups, this population-centric view of trees is independent of that view of species. If we still want to have species that are paraphyletic groups of populations, this is permissible as long as we also do not treat species as the units of phylogeny. This population-centric view opposes a species-centric view of phylogeny and might be called a “rank-free” approach since it entails that we do not need to determine which groups are species (which is partly a ranking question) in order to build a tree. This conclusion and the argument for it are meant to be consistent with, but not require, acceptance of the conclusions of Velasco (2008) regarding species. (shrink)

Los escritos de Jürgen Habermas han despertado en España un interés notable y sostenido en el tiempo. Han ejercido una fuerte influencia intelectual no solo en los círculos académicos, sino también en amplios sectores de la esfera pública, algo sorprendente teniendo en cuenta su complejidad y su carácter más bien técnico. En sus textos los lectores españoles han encontrado elementos que sintonizan constructivamente con los cambios acaecidos en su propia sociedad y en el mundo. Como argumento de autoridad o como (...) referencia a rebatir, Habermas se ha hecho habitual en la filosofía y en la teoría social pensada y escrita en español. En este artículo se tratará de presentar los diversos contextos que posibilitaron la acogida de sus ideas, así como los principales actores que con sus trabajos y reflexiones han protagonizado la propagación de su pensamiento. (shrink)

This paper introduces the hypothesis that boredom may be a decisive factor in the social outbreak that took place in Chile in 2019. It is based on another hypothesis that postulates that boredom can become a political emotion capable of unleashing a revolution when it affects an entire community. The main objective of the work is to explain the theoretical, philosophical framework in which the second hypothesis is inscribed and to give reasons why, if this is true, it could be (...) applied to the specific case of Chile. In this sense, an unpublished definition of the concept of boredom is first outlined and the literature that describes boredom as a reactive and political emotion is examined. Then, the Chilean socio-political context of the last forty years is analyzed in search of isolatable factors that may be related to the experience of boredom. Lastly, an original line of research is proposed on which to work to test both hypotheses in a broader project that aims to be able to predict when a social system is on the verge of collapse because of boredom. (shrink)

Revision of the main intellectual referents of Ángel Álvarez de Miranda who was professor of History of Religions at the University of Madrid from 1954 until his death in 1957. A more detailed study is made of Mircea Eliade and Raffaele Pettazzoni, but also are revised Santiago Montero Díaz, Pedro Laín Entralgo, Marcelino Menéndez Pelayo, José Ortega y Gasset, Karl Kerenyi, Angelo Brelich, Xavier Zubiri, José Luis López Aranguren, Julio Caro Baroja, Wilhelm Schmidt and Gerardus van der Leeuw.

Studying disorientation is studying how, through our bodies, culture and technology, we humans are connected to our environment, and what happens when this connection is weakened or severed. What happens, of course, depends again on our environment, bodies, culture and technology: the world around us becomes at times uncanny, unfamiliar or dangerous when we get disoriented. Disorientation can be exciting and refreshing—an invitation to explore, to leave behind nagging desires for control and certainty, and to embrace instead a more spontaneous (...) relationship with our surroundings. Getting lost shapes our consciousness, not only by transforming our perception of the world around us, but by transforming our sense of who we are in that world, and what possibilities are open to us within it.In this chapter, we analyse the phenomenology of disorientation to elucidate the role that emotions play in distributed cognitive processes that involve multiple agents and cognitive artefacts. The feeling of disorientation destabilises our horizon of experience and turns the world around us unfamiliar or alien. This feeling embodies our disconnection to the agents, the cognitive artefacts, and the environment around us. A proper analysis of the phenomenology of both orientation and disorientation uncovers the role feelings play in distributed cognitive processes: emotions serve as a form of evaluative regulation that contributes to, on the one hand, the syncing of the different elements of a distributed cognitive process, and on the other, to the eventual disengagement of the agent from an unreliable distributed cognitive process. (shrink)

En Mi visión de la filosofía, Friedrich Waismann afirma que un verdadero problema filosófico radica, no en darle solución, sino en encontrarle sentido, de modo que la tarea de la filosofía está en suministrar comprensión. Esto no sería posible si quien se hace una pregunta no da un giro en su manera de pensar para ver las cosas de modo distinto. Con esto en mente, para ayudarle a quien pregunta a dar este giro es necesario orientarlo con el fin de (...) que cruce la brecha de la demostración: hay que darle una discusión, no una prueba; es decir, no debe hostigársele pidiéndole que dé una respuesta, sino que debe pedírsele que considere pacientemente su pregunta. La intención no es, pues, resolver un problema, sino cambiar la actitud de quien pregunta, de lo cual se espera que se disuelvan los falsos problemas y, con base en enunciados claros y bien construidos, la filosofía pueda avanzar en sus argumentos de alguna forma. (shrink)

Computational simulations are now useful tools in experimental life. Their novelty and continuous development make it very difficult to understand their epistemic relevance. In this paper a first evaluation of them is presented through a parallel between thought experiments and computational simulations. Both simulations that play the role of actual experiment and also simulations that are part of experiments will be under scrutiny, since both of them are important in the understanding of contemporary experiments. But simulations as parts of actual (...) experiments can especially show a new face in the complex relation theory-experiment. (shrink)

Abstract : In this paper, it is argued that Leibniz’s view that necessity is grounded in the availability of a demonstration is incorrect and furthermore, can be shown to be so by using Leibniz’s own examples of infinite analyses. First, I show that modern mathematical logic makes clear that Leibniz’s "infinite analysis" view of contingency is incorrect. It is then argued that Leibniz's own examples of incommensurable lines and convergent series undermine, rather than bolster his view by providing examples of (...) necessary mathematical truths that are not demonstrable. Finally, it is argued that a more modern view on convergent series would, in certain respects, help support some claims he makes about the necessity of mathematical truths, but would still not yield a viable theory of necessity due to remaining problems with other logical, mathematical, and modal claims. (shrink)

El propósito de la “Dialéctica trascendental” es exponer cómo la razón es el origen de la ilusión trascendental, para prevenir los errores que puedan derivarse de ella. Sin embargo, en el “Apéndice”, Kant sostiene que la razón no sólo tiene este aspecto negativo o problemático, también es una facultad que le proporciona al entendimiento la meta de lograr una unidad sistemática de todo conocimiento. En el presente texto abordaré dos preocupaciones interpretativas en torno al “Apéndice”. La primera cuestiona si Kant (...) se contradice a sí mismo en esta sección al plantear que el principio de unidad sistemática es, simultáneamente, subjetivo y objetivo. La segunda reflexiona si se trata de una sección que contradice las tesis centrales de la “Analítica trascendental”, al presentar una nueva condición necesaria para el conocimiento, más allá de las establecidas por el entendimiento y la sensibilidad. (shrink)

Drosophila flies began to be used in the study of species evolution during the late 1930s. The geneticists Natasha Sivertzeva-Dobzhansky and Elizabeth Reed pioneered this work in the United States, and María Monclús conducted similar studies in Spain. The research they carried out with their husbands enabled Drosophila population genetics to take off and reveals a genealogy of women geneticists grounded in mutual inspiration. Their work also shows that women were present in population genetics from the beginning, although their contributions (...) have previously remained unacknowledged. The similarities between their research biographies also illustrate their position in a genealogy of partnerships working on Drosophila genetics. (shrink)

Previous research has demonstrated that ratings of the perceived pleasantness and quality of odors can be modulated by auditory stimuli presented at around the same time. Here, we extend these results by assessing whether the hedonic congruence between odor and sound stimuli can modulate the perception of odor intensity, pleasantness, and quality in untrained participants. Unexpectedly, our results reveal that broadband white noise, which was rated as unpleasant in a follow-up experiment, actually had a more pronounced effect on participants’ odor (...) ratings than either the consonant or dissonant musical selections. In particular, participants rated the six smells used as being less pleasant and less sweet when they happened to be listening to white noise, as compared to any one of the other music conditions. What is more, these results also add evidence to support the existence of a close relationship between an odor’s hedonic character and the perception of odor quality. So, for example, independent of the sound condition, pleasant odors were rated as sweeter, less dry, and brighter than the unpleasant odors. These results are discussed in terms of their implications for the understanding of crossmodal correspondences between olfactory and auditory stimuli. (shrink)

Civil disobedience is a widespread form of political protest used by minorities to make their voices heard in democratic societies. It is a mechanism of participation in the process of shaping public opinion, and of intervention, by via negativa, in the legislative process. In exercising it, citizens can assert their public autonomy when faced with serious decisions that, from their perspective, undermine the values on which society is based. This form of political dissidence is thus a highly valuable device in (...) order to revitalize the participatory fundamentals of representative democracy. Keywords: civil disobedience, representative democracy, political participation, citizenship, social change, Arendt, Habermas. (shrink)

In March 2021, the Spanish Congress approved the law regulating euthanasia, that regulates both euthanasia and physician-assisted suicide (PAS). In this article, we analyse the Spanish law regulating euthanasia and PAS, comparing it with the rest of the European laws on euthanasia and PAS (Netherlands, Belgium and Luxembourg). Identified strengths of the Spanish law, with respect to other norms, are that it is a law with many safeguards, which broadly recognises professionals’ right to conscientious objection and the specification that it (...) makes on the prior comprehensive care of the patient, including the approach to care dependency. Regarding its shortcomings, the law does not differentiate well between euthanasia and PAS; it barely assigns a role to the healthcare team as a whole (similar to other regulations); it does not clarify the functions of the different professionals involved; it does not detail the specific composition and duration of theevaluation commission; it has not been accompanied by a prior or simultaneous regulation of palliative care; and, lastly, the period of time to implement the law is too short. (shrink)

Resumen En este artículo se examina el Darwinismo Neural en su explicación de la evolución de la conciencia humana, contrastando su metodología con la utilizada por Richard Lewontin, Richard Levins y Steven Rose, quienes han hecho importantes aportaciones en el estudio de los sistemas vivos desde un punto de vista dialéctico. Concluimos que la explicación interaccionista de la evolución de la conciencia planteada en el DN, supera muchas de las deficiencias del determinismo biológico; sin embargo, al compartir algunos lineamientos con (...) el cartesianismo, mantiene un carácter a-histórico insuficiente para la explicación de la conciencia humana. Finalmente, proponemos la adopción de una teoría explicativa de la conciencia humana que considere las relaciones existentes en ella, no sólo como interacciones sino también como interpenetraciones ontogénicas y filogenéticas.This article examines Neural Darwinism proposed as an explanation of evolution of human consciousness. His methodology is contrasted with that used by Richard Lewontin, Richard Levins, and Steven Rose, who made important contributions to the study of living systems from a dialectical point of view. We conclude that the interactionist explanation of the evolution of conscience put forward in ND overcomes many of the deficiencies proper to biological determinism. However, as ND also shares many of the foundations of the Cartesian approach, it maintains a non-historical character, insufficient for the account of human consciousness. We suggest the adoption of an alternative theory, able to fully explain human conscience which must consider the whole of existing relations in it, and, instead of merely considering them as interactions, they have to be observed as dialectical interpenetrations. (shrink)