In this paper I will argue that the two main approaches to statistical mechanics, that of Boltzmann and Gibbs, constitute two substantially different theoretical apparatuses. Particularly, I defend that this theoretical split must be philosophically understood as a separation of epistemic functions within this physical domain: while Boltzmannians are able to generate powerful explanations of thermal phenomena from molecular dynamics, Gibbsians can statistically predict observable values in a highly effective way. Therefore, statistical mechanics is a counterexample to Hempel's (1958) symmetry (...) thesis, where the predictive capacity of a theory is directly correlated with its explanatory potential and vice versa. (shrink)

In this paper I will defend the incapacity of the informational frameworks in thermal physics, mainly those that historically and conceptually derive from the work of Brillouin (1962) and Jaynes (1957a), to robustly explain the approach of certain gaseous systems to their state of thermal equilibrium from the dynamics of their molecular components. I will further argue that, since their various interpretative, conceptual and technical-formal resources (e.g. epistemic interpretations of probabilities and entropy measures, identification of thermal entropy as Shannon information, (...) and so on) are shown to be somehow incoherent, inconsistent or inaccurate, these informational proposals need to 'epistemically parasitize' the manifold of theoretical resources of Boltzmann's and Gibbs' statistical mechanics, respectively, in order to properly account for the equilibration process of an ideal gas from its microscopic properties. Finally, our conclusion leads us to adopt a sort of constructive skepticism regarding the explanatory value of the main informationalist trends in statistical thermophysics. (shrink)

In this paper, I analyze the physical content of the main information concepts in the history of physics of the last seven decades. I argue that this physical character should be evaluated not by appealing to analytical-linguistic confusion (Timpson 2013) or to the usefulness of its applicability (Lombardi et al. 2016), but properly from its capacity to allow us to acquire significant knowledge about the physical world. After systematically employing this epistemic criterion of physical significance I will conclude by rejecting (...) the main strategies of ontological inflation and physical content of the main information concepts in the classical thermal physics literature. (shrink)

In this talk I present the main results from Anta (2021), namely, that the theoretical division between Boltzmannian and Gibbsian statistical mechanics should be understood as a separation in the epistemic capabilities of this physical discipline. In particular, while from the Boltzmannian framework one can generate powerful explanations of thermal processes by appealing to their microdynamics, from the Gibbsian framework one can predict observable values in a computationally effective way. Finally, I argue that this statistical mechanical schism contradicts the (...) Hempelian (1958) thesis that the predictive power of a scientific theory is directly proportional to its explanatory potential, and vice versa. (shrink)

In this paper I aim to demonstrate that Rudolf Carnap's analysis of the application of information theory within physics, an intellectual-historical precedent of current philosophical criticisms toward this tendency, is justified. First, Carnap and Bar-Hillel (1952) underlined the unjustified ‘semantification’ of Shannon entropy Furthermore, Carnap criticized the ‘physicalization’ of Shannon entropy, but that criticism was not accepted by the physics community of the 1950s (Köhler 2001). Finally, in the posthumously published "Two Essays on Entropy" Carnap (1977) developed a critical assessment (...) of entropy concepts that showed some deep conceptual and interpretative deficiencies in Jaynes (1957a) and Brillouin’s (1956) informational approaches to thermophysics. (shrink)

El primer objetivo de este artículo es mostrar que explicaciones genuinamente geométricas/matemáticas e intrínsecamente diagramáticas de fenómenos físicos no solo son posibles en la práctica científica, sino que además comportan un potencial epistémico que sus contrapartes simbólico-verbales carecen. Como ejemplo representativo utilizaremos la metodología geométrica de John Wheeler (1963) para calcular cantidades físicas en una reacción nuclear. Como segundo objetivo pretendemos analizar, desde un marco inferencial, la garantía epistémica de este tipo de explicaciones en términos de dependencia sintáctica y semántica (...) del contenido lo inferido en las premisas, lo cual denominaremos criterio de validez inferencial (CVI). (shrink)

Ontic Structural Realism, as pivotal position in philosophy of science and metaphysics, defends the idea that the world is ultimately constituted of real physical structures. French (2014) regards physical symmetries as the foundational structure of a world without objects. On the other hand, Ladyman and Ross (2007) hold that the world is essentially made of non-redundant informational structure. I argue in this paper that these two positions are by no means incompatible, for instance by interpreting French’s physical symmetries as real (...) structures both encompassing and compressing every piece of information (Kolmogorov complexity) within the world. (shrink)

In this paper I will evaluate whether some knowledge states that are interpretatively derived from statistical mechanical probabilities could be somehow relevant in actual practices, as famously rejected by Albert (2000). On one side, I follow Frigg (2010a) in rejecting the causal relevance of knowledge states as a mere byproduct of misinterpreting this theoretical field. On the other side, I will argue against Uffink (2011) that probability-represented epistemic states cannot be explanatorily relevant, because (i) probabilities cannot faithfully represent significant epistemic (...) states, and (ii) those states cannot satisfactorily account for why an agent should theoretically believe or expect something. (shrink)

In this paper we develop an inferential account on the meaning and reference of theoretical concepts in physics, mainly based on the pragmatic notion of ‘inferential validity’. Firstly, we distinguish between empirical meaningfulness and theoretical significance as two different modes of meaning, wherein the former depends on consistently encoding experimental values, as proposed by Chang, and the latter on being semantically coherent with other concepts. Secondly, we argue that each of these contributions to the validity of inferences imports a causal (...) and representational mechanism of reference-fixing, respectively. Finally, we will rely on entropy concepts as our case study. (shrink)

Although the everyday notion of information has clear semantic properties, the all-pervasive technical concept of Shannon information is usually considered as a non-semantic concept. In this paper I show how this concept was implicitly ‘semantized’ in the early 1950s by many authors, such as Rothstein or Brillouin, in order to explain the knowledge dynamics underlying certain scientific practices such as measurement. On the other hand, I argue that the main attempts in the literature to develop a quantitative measure of semantic (...) information to clarify science and scientific measurements, such as Carnap-Bar-Hillel, or Dretske, will not successfully achieve this philosophical aim for several reasons. Finally, I defend the use of a qualitative notion of semantic information within the information-theoretical framework MacKay to assess the informational dynamics underlying scientific practices, particularly measurements in statistical mechanics. (shrink)

In this paper I aim to defend a twofold thesis. On one hand, I will sup-port, against Perini [7], the indispensability of diagrams when structurally complex biomolecules are concerned, since it is not possible to satisfactorily use linguistic-sentential representations at that domain. On the other hand, even when diagrams are dispensable I will defend than they will generally be more effective than other representations in encoding biomolecular knowledge, relying on Kulvicki-Shimojima’s diagrammatic effectiveness thesis. Finally, I will ground many epistemic virtues (...) of biomolecular diagrams (understandability, explanatory power, prediction and hypothesis evaluation) on their cognitive-computational indispensability and their semantic-epistemic effectiveness. (shrink)

En este artículo pretendo evaluar las bases conceptuales y interpretativas de las ‘paradojas info-térmicas’ subyacentes a las aproximaciones informacionales a la física térmica, por las cuales nuestra información epistémica sobre un sistema molecular aumenta y disminuye simultáneamente cuando este se aproxima al equilibrio térmico. Defiendo que el contenido paradójico de nuestra tesis persiste incluso cuando se distinguen distintos tipos de información, debido a la conexión robusta entre la parte del incremento y la parte de la disminución informacional de la tesis. (...) Concluiré defendiendo que dicha paradoja muestra las inconsistencias conceptuales de las aproximaciones informacionales de la física térmica. (shrink)

In this comparative historical analysis, we will analyze the intellectual tendency that emerged between 1946 and 1956 to take advantage of the popularity of communication theory to develop a kind of informational epistemology of statistical mechanics. We will argue that this tendency results from a historical confluence in the early 1950s of certain theoretical claims of the so-called English School of Information Theory, championed by authors such as Gabor (1956) or MacKay (1969), and the search to extend the profound success (...) of Shannon's (1948) technical theory of sign transmission to the field of statistical thermal physics. As a paradigmatic example of this tendency, we will evaluate the intellectual work of Léon Brillouin (1956), who developed in the mid-fifties a information-theoretical approach to statistical mechanical physics based on a concept of information linked to the knowledge of the observer. (shrink)

In this paper I will defend an approach to the thought experiment known as ‘Maxwell’s Demon’ based on a Maxwellian conception of statistical mechanics. Instead of assuming that thermodynamic descriptions depend reductively on the dynamics of molecular components, I will adopt a conception of thermophysics as a ‘resource theory’ in the Maxwellian line recently defended by Myrvold (2011) and Wallace (2017). From this interpretative stance, Maxwell’s demon would not lead directly to the plausibility of violating the second law of thermodynamics, (...) but to show the pragmatic impossibility of knowing deterministically the exact microscopic of thermal systems. (shrink)

In this study I aim to develop a cognitive evaluation of how semantically-driven and rule-based diagrammatic reasoning were psychologically plausible for partic-ular cases of scientific practice: an actual trackless path reconstruction in bubble chamber experiments, as reported by Galison (1997). I will propose “cognitive imagery projection and manipulation” (CIPM) as the most plausible psychologi-cal (perceptual/attentional/cognitive) mechanism matching the specific explanatory requirements for the case study, outlining the most significant current theories about this mental phenomenon (Shimojima; 2011).

In this paper we argue for an integrated inferential conception about theories and representations and its role in accounting for the theoretical value of philosophically disregarded representational practices, such as the systematic use of phase space diagrams within the theoretical context of statistical mechanics. This proposal would rely on both inferentialism about scientific representations (Suárez 2004) and inferentialism about particular physical theories (Wallace 2017). We defend that both perspectives somehow converge into an integrated inferentialism by means of the thesis theories (...) as being composed of representations, as defended from the representational semantic conception defended by Suárez and Pero (2019). (shrink)

Throughout the history of the philosophy of science, theories have been linked to formulas as a privileged representational format. In this paper, following, I defend a semantic-representational conception of theories, where theories are identified with sets of scientific re-presentations by virtue of their epistemic potential and independently of their format. To show the potential of this proposal, I analyze as a case study the use of phase diagrams in statistical mechanics to convey in a semantically consistent and syntactically correct way (...) theoretical principles such as Liouville’s theorem. I conclude by defending this philosophical position as a tool to show the enormous representational richness underlying scientific practices. (shrink)

There is no general agreement among scholars that Aristotle had a unified concept of phantasia. That is evident from the most cursory glance through the literature. Freudenthal speaks of the contradictions into which Aristotle seems to fall in his remarks about phantasia, and explains the contradictions as due to the border position which phantasia occupies between Wahrnehmung and thinking. Ross, in Aristotle , p. 143, talks of passages on phantasia in De Anima 3. 3 which constitute ‘a reversal of his (...) doctrine of sensation’ and perhaps do not ‘represent his deliberate view’. This is a serious state of affairs, since De Anima 3. 3 is Aristotle’s main discussion of phantasia. Of passages on phantasia, appearances and images in De Anima 3. 3, Hamlyn says: ‘There is clearly little consistency here’. Even Schofield, who is more optimistic about saving the unity of Aristotle’s concept than the last two scholars, grants that ‘some of the inconsistencies of Aristotle’s account seem more than merely apparent’.1 He thinks of Aristotle’s phantasia as a ‘loose-knit, family concept’ . My purpose here is to suggest that Aristotle is more consistent in his use of phantasia than his critics will allow him to be. The translation of the term as imagination frequently adds unnecessarily to the confusion, so I shall avoid it and use transliteration instead. (shrink)

Symbiosis plays a fundamental role in contemporary biology, as well as in recent thinking in philosophy of biology. The discovery of the importance and universality of symbiotic associations has brought new light to old debates in the field, including issues about the concept of biological individuality. An important aspect of these debates has been the formulation of the hologenome concept of evolution, the notion that holobionts are units of natural selection in evolution. This review examines the philosophical assumptions that underlie (...) recent proposal of the hologenome concept of evolution, and traces those debates back in time to their historical origins, to the moment when the connection between the topics of symbiosis and biological individuality first caught the attention of biologists. The review is divided in two parts. The first part explores the historical origins of the connection between the notion of symbiosis and the concept of biological individuality, and emphasizes the role of A. de Bary, R. Pound, A. Schneider and C. Merezhkowsky in framing the debate. The second part examines the hologenome concept of evolution and explores four parallelisms between contemporary debates and the debates presented in the first part of the essay, arguing that the different debates raised by the hologenome concept were already present in the literature. I suggest that the novelty of the hologenome concept of evolution lies in the wider appreciation of the importance of symbiosis for maintaining life on Earth as we know it. Finally, I conclude by suggesting the importance of exploring the connections among contemporary biology, philosophy of biology and history of biology in order to gain a better understanding of contemporary biology. (shrink)

Contemporary biological research has suggested that some host–microbiome multispecies systems (referred to as “holobionts”) can in certain circumstances evolve as unique biological individual, thus being a unit of selection in evolution. If this is so, then it is arguably the case that some biological adaptations have evolved at the level of the multispecies system, what we call hologenomic adaptations. However, no research has yet been devoted to investigating their nature, or how these adaptations can be distinguished from adaptations at the (...) species-level (genomic adaptations). In this paper, we cover this gap by investigating the nature of hologenomic adaptations. By drawing on the case of the evolution of sanguivory diet in vampire bats, we argue that a trait constitutes a hologenomic adaptation when its evolution can only be explained if the holobiont is considered the biological individual that manifests this adaptation, while the bacterial taxa that bear the trait are only opportunistic beneficiaries of it. We then use the philosophical notions of emergence and inter-identity to explain the nature of this form of individuality and argue why it is special of holobionts. Overall, our paper illustrates how the use of philosophical concepts can illuminate scientific discussions, in the trend of what has recently been called metaphysics of biology. (shrink)

Given one conception of biological individuality (evolutionary, physiological, etc.), can a holobiont – that is the host + its symbiotic (mutualistic, commensalist and parasitic) microbiome – be simultaneously a biological individual and an ecological community? Herein, we support this possibility by arguing that the notion of biological individuality is part‐dependent. In our account, the individuality of a biological ensemble should not only be determined by the conception of biological individuality in use, but also by the biological characteristics of the part (...) of the ensemble under investigation. In the specific case of holobionts, evaluations of their individuality should be made either host‐relative or microbe‐relative. We support the claim that biological individuality is part‐dependent by drawing upon recent empirical evidence regarding the physiology of hosts and microbes, and the recent characterization of the ‘demibiont’. Our account shows that contemporary disagreements about the individuality of the holobiont derive from an incorrect understanding of the ontology of biological individuality. We show that collaboration between philosophers and biologists can be very fruitful in attempts to solve some contemporary biological debates. (shrink)

Bourrat and Griffiths :33, 2018) have recently argued that most of the evidence presented by holobiont defenders to support the thesis that holobionts are evolutionary individuals is not to the point and is not even adequate to discriminate multispecies evolutionary individuals from other multispecies assemblages that would not be considered evolutionary individuals by most holobiont defenders. They further argue that an adequate criterion to distinguish the two categories is fitness alignment, presenting the notion of fitness boundedness as a criterion that (...) allows divorcing true multispecies evolutionary individuals from other multispecies assemblages and provides an adequate criterion to single out genuine evolutionary multispecies assemblages. A consequence of their criterion is that holobionts, as conventionally defined by hologenome defenders, are not evolutionary individuals except in very rare cases, and for very specific host-symbiont associations. This paper is a critical response to Bourrat and Griffiths’ arguments and a defence of the arguments presented by holobiont defenders. Drawing upon the case of the hologenomic basis of the evolution of sanguivory in vampire bats, I argue that Bourrat and Griffiths overlook some aspects of the biological nature of the microbiome that justifies the thesis that holobionts are evolutionarily different to other multispecies assemblages. I argue that the hologenome theory of evolution should not define the hologenome as a collection of genomes, but as the sum of the host genome plus some traits of the microbiome which together constitute an evolutionary individual, a conception I refer to as the stability of traits conception of the hologenome. Based on that conception I argue that the evidence presented by holobiont defenders is to the point, and supports the thesis that holobionts are evolutionary individuals. In this sense, the paper offers an account of the holobiont that aims to foster a dialogue between hologenome advocates and hologenome critics. (shrink)

Holobionts are symbiotic assemblages composed by a host plus its microbiome. The status of holobionts as individuals has recently been a subject of continuous controversy, which has given rise to two main positions: on the one hand, holobiont advocates argue that holobionts are biological individuals; on the other, holobiont detractors argue that they are just mere chimeras or ecological communities, but not individuals. Both parties in the dispute develop their arguments from the framework of the philosophy of biology, in terms (...) of what it takes for a “conglomerate” to be considered an interesting individual from a biological point of view. However, the debates about holobiont individuality have important ontological implications that have remained vaguely explored from a metaphysical framework. The purpose of this paper is to cover that gap by presenting a metaphysical approach to holobionts individuality. Drawing upon a conception of natural selection that puts the focus on the transgenerational recurrence of the traits and that supports the thesis that holobionts are units of selection, we argue that holobionts bear emergent traits and exert downward powers over the entities that compose them. In this vein, we argue, a reasonable argument can be made for conceiving holobionts as emergent biological individuals. (shrink)

Marías’ Romane setzen die kontingente Verfasstheit großstädtischen Lebens in Szene, indem sie das Zeitbewusstsein der Figuren in ein Spannungsverhältnis zur Unausweichlichkeit des – oft plötzlichen – Todes setzen, und dabei die Ambivalenz von Ordnung und Chaos, von Freiheit und Emanzipation in Indifferenz und Beliebigkeit überführen. Sie spiegeln heutige Formen ausgeprägter Individualität in der Großstadt, für die Vanitas zur Erscheinungsweise der als kontingent erfahrenen Selbst- und Welterfahrung wird. Der Roman Morgen in der Schlacht denk an mich thematisiert solche Ambivalenzen der Kontingenz (...) in unterschiedlichen Figurenkonstellationen. Nicht einmal die Möglichkeiten der libidinösen Befriedigung greifen noch, wie Marías’ Roman Die sterblich Verliebten bestätigt. Vielmehr werden Konfigurationen der Vanitas in den skizzierten Rahmen rekontextualisiert, wodurch sich ein Schwinden von Identität, eine Aushöhlung des Subjekts, vollzieht. (shrink)

Marías’ Romane setzen die kontingente Verfasstheit großstädtischen Lebens in Szene, indem sie das Zeitbewusstsein der Figuren in ein Spannungsverhältnis zur Unausweichlichkeit des – oft plötzlichen – Todes setzen, und dabei die Ambivalenz von Ordnung und Chaos, von Freiheit und Emanzipation in Indifferenz und Beliebigkeit überführen. Sie spiegeln heutige Formen ausgeprägter Individualität in der Großstadt, für die Vanitas zur Erscheinungsweise der als kontingent erfahrenen Selbst- und Welterfahrung wird. Der Roman Morgen in der Schlacht denk an mich thematisiert solche Ambivalenzen der Kontingenz (...) in unterschiedlichen Figurenkonstellationen. Nicht einmal die Möglichkeiten der libidinösen Befriedigung greifen noch, wie Marías’ Roman Die sterblich Verliebten bestätigt. Vielmehr werden Konfigurationen der Vanitas in den skizzierten Rahmen rekontextualisiert, wodurch sich ein Schwinden von Identität, eine Aushöhlung des Subjekts, vollzieht. (shrink)

Political philosophy in the last decades has turned away from universal narratives of progress, on grounds that these narratives produce exclusion and justify domination. However, the universal values that underlie emancipatory political projects seem to presuppose universal history, which explains its persistence in some contemporary political philosophers committed to such projects. In order to find a response to the paradox according to which universal history is inherently exclusionary and yet necessary to uphold universal values, I examine the contrast between Adorno’s (...) and Lyotard’s perspectives on the problem of writing history ‘after Auschwitz’. For both philosophers, Auschwitz interrupts our fundamental normative and cognitive values, because any attempt to identify the meaning of the camps by means of these values misunderstands the suffering that took place in them. Yet this interruption produces a feeling that calls for the institution of new universal normative values. For Adorno, this value is a purely negative command to act in such a way that Auschwitz does not repeat itself. For Lyotard, by contrast, it is the demand to invent new idioms that make it possible to find meaning in Auschwitz. (shrink)

Philippe Huneman has recently questioned the widespread application of mechanistic models of scientific explanation based on the existence of structural explanations, i.e. explanations that account for the phenomenon to be explained in virtue of the mathematical properties of the system where the phenomenon obtains, rather than in terms of the mechanisms that causally produce the phenomenon. Structural explanations are very diverse, including cases like explanations in terms of bowtie structures, in terms of the topological properties of the system, or in (...) terms of equilibrium. The role of mathematics in bowtie structured systems and in topologically constrained systems has recently been examined in different papers. However, the specific role that mathematical properties play in equilibrium explanations requires further examination, as different authors defend different interpretations, some of them closer to the new-mechanistic approach than to the structural model advocated by Huneman. In this paper, we cover this gap by investigating the explanatory role that mathematics play in Blaser and Kirschner’s nested equilibrium model of the stability of persistent long-term human-microbe associations. We argue that their model is explanatory because: i) it provides a mathematical structure in the form of a set of differential equations that together satisfy an ESS; ii) that the nested nature of the ESSs makes the explanation of host-microbe persistent associations robust to any perturbation; iii) that this is so because the properties of the ESS directly mirror the properties of the biological system in a non-causal way. The combination of these three theses make equilibrium explanations look more similar to structural explanations than to causal-mechanistic explanation. (shrink)

El propósito de este estudio es dilucidar algunos de los rasgos distintivos de la concepción del ser humano que mantiene Jürgen Habermas y sus implicaciones en la teoría de la acción comunicativa. De este modo, se trata de mostrar que la antropología habermasiana se singulariza por adoptar una perspectiva naturalista y darwinista. En la primera parte, se analiza el legado epistemológico de Darwin como un programa de investigación y se contrastan los estudios de Habermas sobre antropología biológica con las últimas (...) investigaciones en genética y paleontología. En la segunda parte, se presenta la propuesta de Habermas de afrontar un dualismo epistemológico mediante un naturalismo débil noreduccionista, como crítica de la metafísica moderna y estructurador de un nuevo realismo. (shrink)

States restrict immigration on a massive scale. Governments fortify their borders with walls and fences, authorize border patrols, imprison migrants in detention centers, and deport large numbers of foreigners. Unjust Borders: Individuals and the Ethics of Immigration argues that immigration restrictions are systematically unjust and examines how individual actors should respond to this injustice. Javier Hidalgo maintains that individuals can rightfully resist immigration restrictions and often have strong moral reasons to subvert these laws. This book makes the case that (...) unauthorized migrants can permissibly evade, deceive, and use defensive force against immigration agents, that smugglers can aid migrants in crossing borders, and that citizens should disobey laws that compel them to harm immigrants. Unjust Borders is a meditation on how individuals should act in the midst of pervasive injustice. (shrink)

Evidence has shown that negative distracting stimuli are most difficult to control when we are focused in a relevant task, while positive and neutral distractors might be equally overcome. Still, r...

The hologenome concept of evolution is a hypothesis about the evolution of animals and plants. It asserts that the evolution of animals and plants was partially triggered by their interactions with their symbiotic microbiomes. In that vein, the hologenome concept posits that the holobiont (animal host + symbionts of the microbiome) is a unit of selection. -/- The hologenome concept has been severely criticized on the basis that selection on holobionts would only be possible if there were a tight transgenerational (...) host-genotype-to-symbiont-genotype connection. As our current evidence suggests that this is not the case for most of the symbiont species that compose the microbiome of animals and plants, the opportunity for holobiont selection is very low in relation to the opportunity for selection on each of the species that compose the host microbiome. Therefore, holobiont selection will always be disrupted ‘from below’, by selection on each of the species that compose the microbiome. -/- This thesis constitutes a conceptual effort to defend philosophically the hologenome concept. I argue that the criticism according to which holobiont selection requires tight transgenerational host-genotype-to-symbiont-genotype connection is grounded on a metaphysical view of the world according to which the biological hierarchy needs to be nested, such that each new level of selection includes every entity from below. Applied to hologenomes, it entails that the hologenome is a collection of genomes, and selection of hologenomes is assumed to entail cospeciation of the host with the species that constitute its microbiome. -/- Against that interpretation, I propose the ‘stability of traits’ account, according to which hologenome evolution is the result of the action of natural selection in a non-nested hierarchical world. In that vein, hologenome evolution does not entail cospeciation, and thus it does not require tight transgenerational host-genotype-to-symbiont-genotype connection. By embracing a multilevel selection perspective, I argue that hologenome evolution results from the simultaneous action of natural selection on each of the lineages that compose the microbiome, and on the assemblage composed by the host genome plus the functional traits of its microbiome. Hologenome selection occurs when the evolution of the traits of the microbiome result from their effects on the fitness of the host, and it can take the form of multilevel selection 1, or multilevel selection 2. In both cases, hologenome selection entails the evolution of microbiome traits, as well as evolution of the host genome, rather than cospeciation of lineages. (shrink)

Las sociedades de la Unión Europea están descubriéndose a sí mismas, con gran dificultad, como sociedades multiculturales.

En el océano de literatura jurídica que aparece casi todos los días en los estantes de las diferentes librerías nacionales, suelen ser pocas las ocasiones en las que se pueden llegar a encontrar trabajos sobre un tema tan importante como es el de la dignidad de la persona; la mayor parte de los libros que aparecen se refieren a cuestiones de derecho positivo, p. ej. el derecho penal, civil, administrativo, no se diga el constitucional, etcétera, y aunque cada una de (...) éstas debería tener como presupuesto básico al ser humano y la dignidad de éste, poca, muy poca atención es la que se le presta a tan trascendental asunto. Por eso deben recibirse con gusto trabajos que analicen el tema de la dignidad humana, y en un sentido más general, aquellos asuntos relacionados con las cuestiones morales en el derecho. Es el caso del libro De la dignidad humana y otras cuestiones jurídico-morales, del profesor José Luis Pérez Triviño, publicado por la prestigiosa editorial Fontamara. Trabajo interesante en el que he podido hallar muchos puntos de coincidencia y también algunos puntos de discrepancia. (shrink)

This paper aims to offer a new argument in defence bacterial species pluralism. To do so, I shall first present the particular issues derived from the conflict between the non-theoretical understanding of species as units of classification and the theoretical comprehension of them as units of evolution. Secondly, I shall justify the necessity of the concept of species for the bacterial world, and show how medicine and endosymbiotic evolutionary theory make use of different concepts of bacterial species due to their (...) distinctive purposes. Finally, I shall show how my argument provides a new source of defence for bacterial pluralism. (shrink)

Durante las cuatro últimas décadas, Javier Muguerza ha contribuido como nadie a la modernización del pensamiento español, dando a conocer y comentando lo mejor que se publicaba en otras lenguas, particularmente a lo tocante a la filosofía analítica, a la teoría crítica y a las corrientes morales y políticas anglosajonas y alemanas, además de tener muy en cuenta todo lo que se escribía en español y prestar una especial atención al espíritu del pensamiento práctico kantiano. La deuda que con (...) él tiene contraída la filosofía en castellano es muy difícil de calcular. En el libro Disenso e incertidumbre. Un homenaje a Javier Muguerza, un grupo de importantes filósofos analiza su obra en profundidad ofreciendo al lector la oportunidad única de conocerla desde múltiples puntos de vista. (shrink)

The Texas borderlands have come to be increasingly important in the historical literature and in public opinion for the way that the region shapes national thought on race, borders, and ethnicity. With this increasing importance, it is pressing to examine the history of these issues in the region so that they may be accurately and insightfully deployed. This article contributes to the existing scholarship with a close discursive analysis of race in the booster materials, 1904-1941. The booster materials forge a (...) notion of race relations that borrows from tropes common across the West but is also informed by Jim Crow and the unique demands of the region. The booster materials forward a notion of race that is largely unique in Western boosterism, positing only two major characters, Mexicans and white Northerners. The figure of ‘the Mexican’ is drawn more as a part of nature than human society in that it shares the fundamental characteristics of the land, animals, and rivers of the region. Nature in the region is depicted as an adventitious, disorderly, and wasteful body that calls out for northern discipline. The ‘Northerners’ are figured as the ones who, through applying discipline to the natural resources of the area (land, water, and Mexicans) can bring reason, fertility, and profitable connection to the national economy. The consequences of this racial division are further explored in the article as they play out in schooling, religion, justice, beauty, leisure, and sport. (shrink)

Jonathan Schaffer has provided three putative counterexamples to the transitivity of grounding, and has argued that a contrastive treatment of grounding is able to provide a resolution to them, which in turn provides some motivation for accepting such a treatment. In this article, I argue that one of these cases can easily be turned into a putative counterexample to a principle which Schaffer calls differential transitivity. Since Schaffer's proposed resolution rests on this principle, this presents a dilemma for the contrastivist: (...) either he dismisses the third case, which weakens the motivation for accepting his treatment of grounding, or else he accepts it, in which case he is faced with a counterexample to a principle that his proposed resolution to the original cases depends on. In the remainder of the article, I argue that the prima facie most promising strategy the contrastivist could take, which is to place some restriction on which contrastive facts are admissible so as to rule out the purported counterexample to differential transitivity, faces some important difficulties. Although these difficulties are not insurmountable, they do pose a substantial challenge for the contrastivist. (shrink)

Are properties universal or particular? According to Universalism, properties are universals because there is a certain fundamental tie that makes properties capable of being shareable by more than one thing. On the opposing side, Particularism is the view that properties are particulars due to the existence of a fundamental tie that makes properties incapable of being shared. My aim in this paper is to critically examine the connections between the notions of the fundamental tie and universality and particularity. I argue, (...) first, that universality and particularity can characterize a property if and only if there is a universalist or a particularist fundamental tie, and, second, that it is unclear that these should be the fundamental ties that connect ordinary and scientific properties to their respective bearers. Then I develop an alternative approach to properties and the fundamental tie, which is neutralist because it dispenses with universality and particularity as features of properties, and naturalist because it naturalizes the possession of properties by replacing metaphysical fundamental ties with a scientific one, in particular, a physical process. I show how this approach improves our understanding of properties and instantiation. (shrink)

This paper argues for a dilemma: you can accept liberalism or immigration restrictions, but not both. More specifically, the standard arguments for restricting freedom of movement apply equally to textbook liberal freedoms, such as freedom of speech, religion, occupation and reproductive choice. We begin with a sketch of liberalism’s core principles and an argument for why freedom of movement is plausibly on a par with other liberal freedoms. Next we argue that, if a state’s right to self-determination grounds a prima (...) facie right to restrict immigration, then it also grounds a prima facie right to restrict freedom of speech, religion, sexual choice and more. We then suggest that the social costs associated with freedom of immigration are also costs associated with occupational choice, speech and reproduction. Thus, a state’s interest in reducing these costs gives it prima facie justification to restrict not only immigration but also other core liberal freedoms. Moreover, we rebut the objection that, even if the standard arguments for a prima facie right to restrict immigration also support a prima facie right to restrict liberal freedoms generally, there are differences that render immigration restrictions – but not restrictions on speech, religion, etc. – justified all things considered. In closing, we suggest that the theoretical price of supporting immigration restrictions – viz., compromising a commitment to liberal principles – is too steep to pay. (shrink)