In lieu of an abstract, here is a brief excerpt of the content:Extractivist OntologiesLithium Mining and Anthropocene Imaginaries in Chile's Atacama DesertMauricio F. Collao Quevedo (bio)The term energy transition generally refers to efforts to switch from one energy system to another. In light of the current climate crisis, energy transition projects have sought to move societies away from their reliance on fossil fuels and toward a renewables-based energy system. Yet such projects have not been easy to undertake. As (...) Marie Forget and Vincent Bos point out, an energy system based on renewables requires a transformation of energy "regulatory frameworks, technical and organizational structures, geographic forms and network practices" (1). More specifically, current energy transition models rely on the expansion of lithium production, accompanying systems of private property rights, and complex logistical and technical strategies. This article examines the interplay between lithium extraction, national development, and Anthropocene imaginaries in Chile's Atacama Desert, arguing that the green brand of extractivism that characterizes the industry relies on elaborate institutional arrangements aimed at expanding and protecting extractivist ontological and epistemological regimes in the politically contested region. As such, struggles over lithium in Chile's Atacama region demonstrate the extent to which efforts to decolonize the Anthropocene and make possible non-extractive futures of collective survival must unfold on ontological grounds, against the consolidation of the Age of Man.Mining, Water Rights, and Indigenous Communities in the Atacama DesertAmong today's most promising energy sources and materials are sodium, copper, sulfur, nickel, cobalt, rare earth metals, and lithium. These [End Page 78] have become central to energy transition strategies and states seeking to attract investors for development (Lunde Seefeldt). As a report by the World Bank points out, demand for transition minerals like lithium, cobalt, and graphite could increase by 500% by 2050 ("Climate-Smart Mining"), highlighting the extent to which global energy transition efforts are counting on greater extraction of transition minerals and the expansion of extractive frontiers to previously unexplored or unexploited regions (Moore, Capitalism; World Bank Group). Lithium is at the center of this economic and technological shift toward green economies.Global lithium demand is growing rapidly, with investment and production rates growing significantly in recent years (Narins) and catching the attention of states (e.g., China) and corporate tech giants (e.g., Tesla) that are already trying to secure greater shares of the global market. The light metal's popularity is largely due to its internal chemistry, which meets many of the technical and practical requirements associated with green energy transition. Lithium is light, conducive, and energy-dense, which in the context of batteries means faster recharge, lower costs, and charge-holding abilities that make lithium-ion batteries more efficient than a nickel-metal hybrid equivalent (Perotti and Coviello). Because of this, lithium is increasingly being considered as promising for human development and survival as its energy predecessors, inspiring labels such as "white gold," "white petroleum," "the new copper," "the 21st century's petroleum," or the "new gasoline" of sustainability (Acuña and Tironi; Lunde Seefeldt; Voskoboynik and Andreucci).But the industry is not without its downsides. The negative impacts of lithium extraction in Chile's Atacama Desert have been challenged by local communities for whom the metal does not exist as a discrete entity that can be easily extracted from its socioecological context. For many of these communities, lithium is more than a transition metal found in an appropriable and materially heterogenous underground brine: it is an ontologically contested, socioecological entity that sustains and participates in complex webs of life-supporting, place-based, and more-than-human relations. Such accounts of the brine are radically incompatible with "official" state accounts of it, which are maintained through an institutional architecture that allows the ontological basis of the brine to be manipulated for extractive purposes by both corporate and state actors.In the following pages, I examine the ways in which Chile's legal and institutional arrangements, informed by imaginaries of green modernization, [End Page 79] create conditions under which extralocal actors can manipulate along extractivist lines the ontological ambiguity and material heterogeneity of lithium-containing brines in the salt flats of the Atacama Desert. Through an analysis of the ways in which lithium industries in the... (shrink)

Melatonin is a hormone with complex roles in the pathogenesis of autoimmune disorders. Over the years, it has become clear that melatonin may exacerbate some autoimmune conditions, whereas it alleviates others such as multiple sclerosis. Multiple sclerosis is an autoimmune disorder characterized by a dysregulated immune response directed against the central nervous system. Indeed, the balance between pathogenic CD4+ T cells secreting IFN‐γ (TH1) or IL‐17 (TH17); and FoxP3+ regulatory T cells and IL‐10+ type 1 regulatory T cells (Tr1 cells) (...) is thought to play an important role in disease activity. Recent evidence suggests that melatonin ameliorates multiple sclerosis by controlling the balance between effector and regulatory cells, suggesting that melatonin‐triggered signaling pathways are potential targets for therapeutic intervention. Here, we review the available data on the effects of melatonin on immune processes relevant for MS and discuss its therapeutic potential. (shrink)

The role of academic satisfaction on persistence and successful academic behavior has been the focus of research for decades. Nevertheless, driven by positive educational psychology, subjective well-being has been highlighted as another central feature in the academic path of students. Studies aimed at identifying the variables that contribute to explain different aspects of academic performance have been widely investigated, although studies aimed at identifying the determinants of subjective well-being are still limited. The present paper examined the contribution of AS judgments (...) on subjective well-being. To this end, it was hypothesized that SWB levels depend on the balance between positive/negative emotions and life satisfaction judgments. Furthermore, it was stipulated that AS has an indirect contribution on SWB, through life satisfaction, whereas the balance of emotions influences both AS judgments and life satisfaction. Using an analysis strategy based on structural equation modeling, the results indicated that the model fitted satisfactorily, explaining 32% of the variance of SWB. Particularly, it was observed that AS judgments contributed to life satisfaction judgments. Although no direct contribution of AS on SWB was reported, a total contribution partially mediated by life satisfaction judgments was revealed. These findings support the importance of academic satisfaction judgments, not only because of their importance in academic terms, but also because of their impact on university students’ subjective well-being and health. (shrink)

Resumen: Esta investigación busca dar cuenta de los espacios que habitan los personajes del cuento Alegres, libres y ruidosas de Pedro Juan Gutiérrez. Mediante los detalles que nos entrega el narrador, revisaremos los “operadores tonales”, estableciendo los enunciados descriptivos y los detalles inherentes a ellos, en cuanto a la composición de los personajes, así como el tipo de espacio en que se realizan, construyendo una identidad transgresora bajo la perspectiva de la poética de lo soez. En este sentido, los personajes (...) serán “máquinas deseantes” que irrumpen en la realidad con un flujo sistemático de líquidos descompuestos que arrastran residuos políticos, éticos y estéticos presentes en la Cuba contemporánea. Así, podríamos hablar de un sexo eminentemente político que no se presenta denotativamente en el cuento sino en las metáforas construidas por aquellos operadores que fijan el “tono” del relato. Por último, postulamos que los detalles funcionan como “pistas” de una historia secreta que funciona bajo la historia visible que se narra en el cuento.: This research seeks to explain the spaces inhabited by characters from the story Alegres, libres y ruidosas by Pedro Juan Gutiérrez. Thoughout the details provided by the narrator, we will review “tone operators”, determining their descriptive and inherent statements, concerning characters, the space in which they are realized by building a transgressor identity under the view poetics of the vulgar. In this sense, the characters are "desiring machines" that burst into reality with a systematic flow of decomposed liquids that drag political, ethical and aesthetic residues present in contemporary Cuba. Thus, we could speak of an eminently political sex that does not occur denotatively in the story but in the metaphors constructed by those operators who fix the "tone" of the story. Finally, we postulate that the details function as "clues" of a secret story that works under the visible story told in the tale. (shrink)

The design of the bronchial tree has largely been proposed as a model of optimal design from a physical-functional perspective. However, the distributive function of the airway may be more related to a geometrical than a physical problem. The bronchial tree must distribute a three dimensional volume of inspired air on a two dimensional alveolar surface, included in a limited volume. It is thus valid to ask whether an optimal bronchial tree from a physical perspective is also optimum from a (...) geometrical point of view. In this paper we generate a simple geometric model for the branching pattern of the bronchial tree, deducing relationships that permit estimation of the departures from the geometrical optimum of each bifurcation. We also, for comparative purposes, estimate the departures from the physical optimum. From the geometrical assumptions: i) a symmetrical dichotomic fractal design, ii) with minimum volume and iii) maximum dispersion of the terminal points; and several simulations we suggest that the optimality is characterized by a bifurcation angle Θ ∼ 60° and a length reduction scale γ = (1/2)1/3 = 0.7937. We propose distances from the physical and geometrical optimality defined as Euclidean distances from the expected optima. We show how the advanced relationships and the distances can be used to estimate departures from the optimality in bronchographs of four species. We found lower physical and geometrical departures in the distal zone than those of the proximal zones, as well as lower physical than geometrical departures from optimality. (shrink)

Convocada por diferentes estudiosos de los Padres de la Iglesia y del cristianismo antiguo en Latinoamérica, a saber, los profesores Ana Cristina Villa Betancourt, Andrés Mauricio Quevedo Rodríguez y Estiven Valencia Marín, de Colombia; Alejandro Nicola y Francisco Basttita-Harriet, de Argentina; Bruno Gripp, de Brasil; Pamela Chávez Aguilar, de Chile; y Jesús Ma. Aguiñaga Fernández, de México.

Rapid individual cognitive phenotyping holds the potential to revolutionize domains as wide‐ranging as personalized learning, employment practices, and precision psychiatry. Going beyond limitations imposed by traditional lab‐based experiments, new efforts have been underway toward greater ecological validity and participant diversity to capture the full range of individual differences in cognitive abilities and behaviors across the general population. Building on this, we developed Skill Lab, a novel game‐based tool that simultaneously assesses a broad suite of cognitive abilities while providing an engaging (...) narrative. Skill Lab consists of six mini‐games as well as 14 established cognitive ability tasks. Using a popular citizen science platform (N = 10,725), we conducted a comprehensive validation in the wild of a game‐based cognitive assessment suite. Based on the game and validation task data, we constructed reliable models to simultaneously predict eight cognitive abilities based on the users’ in‐game behavior. Follow‐up validation tests revealed that the models can discriminate nuances contained within each separate cognitive ability as well as capture a shared main factor of generalized cognitive ability. Our game‐based measures are five times faster to complete than the equivalent task‐based measures and replicate previous findings on the decline of certain cognitive abilities with age in our large cross‐sectional population sample (N = 6369). Taken together, our results demonstrate the feasibility of rapid in‐the‐wild systematic assessment of cognitive abilities as a promising first step toward population‐scale benchmarking and individualized mental health diagnostics. (shrink)

The extent to which people anticipate and are influenced by the potential future consequences of their current behavior is called Consideration of Future Consequences. A well-established tool to measure this construct is the 14-item Consideration of Future Consequences Scale. The CFC-14 has shown appropriate psychometric properties in several languages. This scale comprises two factors: the CFC-Immediate and the CFC-Future. The main goal of this study was to assess the psychometric properties and internal consistency of the CFC-14 Scale in Spanish, using (...) an Argentine sample. A secondary goal was to determine its convergent validity with impulsivity, and determine differences across gender and age groups. Using a web-based survey, we collected data from 512 participants aged 13-74 years. Confirmatory Factor Analysis showed a 2-factor model as the best solution for 13-items version. Standardized regression weights ranged from.50 to.66 for CFC-F and between.43 and.83 for CFC-I. Composite reliability was also adequate: CFC-F achieve? =.80 and CFC-I? =.82. There were no differences across gender and age. The CFC-F subscale and UPPS-P subscales correlations, were negative and significant, highlighting the negative and moderate correlation between CFC-F and the lack of premeditation, a dimension strictly related to intertemporal decisions making. Thus, CFC-14 has adequate psychometric properties in an Argentinian population, although more studies are necessary to determine the robustness of these findings. (shrink)

The article deals with some of Machiavelli’s opponents, in Spain as well as in New Spain. Machiavelli’s doctrines attracted several discussions among hispanic thinkers. In Spain, Rivadeneyra, Quevedo, Gracián and others opposed his doctrines. In Mexico, we have two remarkable cases: Juan Blázquez..

This book brings the history of Latin American philosophy to an English-speaking audience through the prominent voices of Mauricio Beuchot, Horacio Cerutti-Guldberg, María Luisa Femenías, Jorge J. E. Gracia, Oscar R. Martí, León Olivé, Carlos Pereda, and Eduardo Rabossi. They argue that Spanish is not a philosophically irrelevant language and that there are original positions to be found in the work of Latin American philosophers.

El propósito de este escrito es mostrar la complejidad de la lectura que Quevedo realiza del estoicismo, como representante del barroco hispano, en el contexto de la historia de la recepción de esta escuela antigua en los siglos XVI y XVII. Para ello retomamos la tesis de P. F. Moreau sobre las tres grandes etapas en la historia de la recepción del estoicismo (la humanista, la neoestoica y la crítica moderna) con el objetivo de aportar nuevos argumentos, extraídos del (...) análisis del miedo a la muerte y el temor de Dios en La cuna y la sepultura, que permitan precisar qué posición singular ocupa Quevedo, como representante del neoestoicismo cristianizado, en el contexto de estas tres grandes fases mencionadas. (shrink)

Resumen En este artículo se argumenta a favor de la relevancia moral de los lazos biológicos en la parentalidad. En primer lugar, se realiza un estado del arte en base a dos cuestiones: 1) la importancia de hecho que poseen los lazos biológicos en la caracterización de la relación parental; 2) la relevancia moral de estos lazos. Se argumenta que los lazos biológicos son importantes para establecer el paradigma de la parentalidad, que este es condición de posibilidad de la moralidad (...) de la parentalidad, pero que esto no implica superioridad del modelo bionormativo respecto de otros modelos.In this article, we argue in favor of biological ties' moral relevance in the parental relationship. In the first place, we review the state-of-art literature in two respects: 1) the factual importance that biological ties have in the characterization of the parental relationship; 2) the moral relevance of these ties. We argue that biological ties are essential to establish the parenting paradigm. This paradigm is a condition of possibility for parenting morality, but that this does not imply the superiority of the bionormative model over other models. (shrink)

1Department of Philosophy, University of Bristol, 9 Woodland Road, Bristol BS8 1TB, UKScience Without Laws Ronald Giere Chicago, IL University of Chicago Press 1999 x + 285 Hardback£17.50.

Depersonalization is characterised by a profound disruption of self-awareness mainly characterised by feelings of disembodiment and subjective emotional numbing.It has been proposed that depersonalization is caused by a fronto-limbic suppressive mechanism – presumably mediated via attention – which manifests subjectively as emotional numbing, and disables the process by which perception and cognition normally become emotionally coloured, giving rise to a subjective feeling of ‘unreality’.Our functional neuroimaging and psychophysiological studies support the above model and indicate that, compared with normal and clinical (...) controls, DPD patients show increased prefrontal activation as well as reduced activation in insula/limbic-related areas to aversive, arousing emotional stimuli.Although a putative inhibitory mechanism on emotional processing might account for the emotional numbing and characteristic perceptual detachment, it is likely, as suggested by some studies, that parietal mechanisms underpin feelings of disembodiment and lack of agency feelings. (shrink)

IntroductionThe idea of video recording in the operating room with panoramic cameras and microphones is a new concept that is changing the approach to medical activities in the OR. However, VR in the OR has brought up many concerns regarding patient privacy and has highlighted legal and ethical issues that were never previously exposed.AimTo review the literature concerning these aspects and provide a better ethical and legal understanding of the new challenges concerning VR in the OR.ConclusionsThere is a disparity between (...) the two main legal models concerning VR in the OR, namely the European legal system ) and the American legal framework ). This difference mainly deals with two distinct bioethical paradigms: GDPR places a strong emphasis on protecting patients’ privacy to improve the public health system, whereas HIPAA indicates the need to generate protocols to safeguard the risks connected to medical activity and patient privacy. Following from this point, we may argue that, at the ethical and bioethical level, GDPR and HIPAA depend mainly on two different ethical models: a perspective based on moral acquaintances and weak proceduralism, respectively. It is worth noting the importance of developing additional guidelines concerning different world regions to avoid the ethical problems that may emerge when simply applying a foreign paradigm to a very different culture. (shrink)

El modelo de ser humano: homo oeconomicus, impuesto por la racionalidad económica capitalista, ha tenido en las dos últimas décadas una metamorfosis compleja, a saber, la formación de un tipo de subjetividad representada en la figura del “emprendedor” o “su propio jefe” que, desde una nueva gramática teológica, encarna un proyecto mercantil solapado y subrepticio que condiciona las relaciones entre sujetos. En razón a esto, el propósito de este texto es pensar dicha problemática desde el ejercicio hermenéutico-crítico que lleva a (...) cabo el joven Marx, para someter al análisis las categorías de culpa, deuda, sacrificio y expiación destacadas por Walter Benjamin, a la luz de la categoría esencia subjetiva de la propiedad privada que permita entender cómo el capitalismo se vale hoy de la teología y su lenguaje para continuar responsabilizando al ser humano de su pobreza, de su riqueza o su fracaso económico. (shrink)

El objetivo de este artículo es presentar el problema triple (trilema) de Agripa que cuestiona la posibilidad de alcanzar una justificación epistemológica del conocimiento empírico. Una posible reconstrucción del problema es la que se apoya en el problema del regreso al infinito -uno de los modos de..

El estudio se centró en los textos de las resoluciones de acreditación de alta calidad de las Instituciones de Educación Superior en Colombia. La metodología condujo a un panorama descriptivo y posibilitó la construcción de categorías cualitativas que permitieron analizar fortalezas y debilidades. Los resultados evidencian la brecha urbano- rural; una tendencia de las instituciones oficiales a recibir más años de acreditación que las privadas y la no incidencia del carácter académico en el número de años de acreditación otorgados. Mejorar (...) las condiciones laborales de los profesores y atender las zonas rurales son prioridades que deben atender las políticas nacionales. (shrink)

The article turns to Deleuze and Guattari’s concept of state capitalism and their theorization of money and debt in their critique of capitalism to develop an analysis of the governmental management of the current crisis determined by ordo- and neoliberalism. The paper argues that analyses which fail to properly recognize the power of capital to determine both state apparatuses and economic policy thereby fail to grasp the real functioning of money, debt and the Euro in the crisis and end up (...) unwittingly supporting liberalism. This is true of positions such as heterodox theory that, though critical of conventional and neoliberal political economy, nevertheless continue to uphold the state as an independent or mediating mechanism in relation to the power of capital. The neglect of the role which money plays in the strategies of capital to control both the creation of value and the functioning of the state is to be found even in Foucault’s genealogy of neoliberalism, a neglect which undermines his analysis of power. The paper highlights the implications of the standpoint of state capitalism for a more incisive analysis of the current crisis that reveals what is at stake for political struggles. (shrink)

Consideraciones introductorias Presentamos aquí un avance de análisis de un proyecto de investigación sobre enseñanza y aprendizaje de la argumentación que realizamos observando clases de filosofía y de biología de seis profesores de cada disciplina en cuatro Liceos públicos y dos privados. Además organizamos actividades argumentativas de aula a comienzos y finales de los cursos en el año 2012, con el fin de observar los eventuales avances en lo argumentativo. Presentamos en este trabajo los (...) - Sciences de l'éducation et (...) de la formation – Nouvel article. (shrink)

El propósito de este artículo es estudiar la actualidad del binomio persona-naturaleza para fundamentar la unión hipostática de acuerdo con el pensamiento de Tomás de Aquino. Ambos conceptos se necesitan mutuamente no sólo como la parte y el todo para fundar una Metafísica de la Encarnación, sino también para poder predicar las naturalezas del único supuesto de modo de no destruir la unidad personal de Cristo. De este modo, para el Aquinate, persona y naturaleza no sólo expresan nociones metafísicas, sino (...) también conceptos que se predican del único supuesto subsistente. (shrink)

The aim of the article is to show that Friedrich Schleiermacher’s Hermeneutic method is still topical andrelevant for research in the field of humanities. One of the arguments is that most of recent commentarieson his hermeneutic program are based in a “non-critical position” and reproduce the assumptions of Hans-Georg Gadamer’s “dominant reading”. This is the consequence of a lack of “critical editions” of the work ofSchleiermacher regarding Hermeneutics, an issue that has recently been compensated for with the publication of the (...) volume that collects his Vorlesungen zur Hermeneutik und Kritik, which includes numerous notes and additional material. Based on this critical edition, the article addresses some of his most important concepts, such as language, grammatical interpretation, technical or psychological interpretation, divinatory method, comparative method, hermeneutic circle of understanding, reconstruction of discourse, and interpretation as aninfinite task. It undertakes a conceptual analysis of the aforementioned collection and an interpretation that is not undermined by classical works of Hermeneutics. Finally, it offers some remarks regarding the novel possibilities of Schleiermacher’s philosophy for our time. (shrink)

The article seeks to investigate the role that censorship had in the history of modern Colombian theater during the decades from 1950 to 1980, on the basis of a journey through the trajectory of groups such as Candelaria, TEC and Escuela Municipal de Teatro, as well as its directors Santiago García, Enrique Buenaventura and Gilberto Martínez. The censorship usually came from government institutions, Church ministers, or educational institutions such as universities and colleges. In addition to the analysis of direct censorship (...) phenomena such as the prohibition of performances and the expulsion of members of theater formations, or more indirect ones such as red tape or excessive tax collection, we are interested in highlighting the strategies and practices of resistance and opposition generated by playwrights and theater groups during this time before the censorial actions and speeches. Among these strategies to fight censorship, we highlight the collectivization of structured cultural formations or guilds that brought together various theater groups at the national level, as was the case with the formation of the Colombian Theater Corporation. Collectivization was the strategy against power through which the theater guild fought to resist the repressive effects of censorship. It is necessary to shed light on the role that censorship played in the life of Colombian groups and theater in general. This approach will allow us to see the history of modern theater in Colombia as the history of resistance strategies against censorship and power. (shrink)

In this paper I want to do the following things. First I want to show that in the part of the Theaetetus where the relationship between knowledge and perception is examined, the concept of knowledge that is in question is very clearly characterized. We are left in no doubt as to what is to count as knowing. Secondly I want to unravel in some detail the case that Socrates puts on Protagoras’ behalf where he draws on what Protagoras actually wrote (...) (151 E-152C); as opposed to what he may have taught secretly to his pupils (152C-160D). Thirdly I wish to argue that if we let the dialogue speak for itself, it is manifest that this case put up on Protagoras’ behalf at 151 E-152C is not overthrown; it is not even shaken. (shrink)

El concepto de holismo ha adquirido una gran importancia en losúltimos análisis semánticos y epistémicos. Sin embargo, muchosde los filósofos que han utilizado este concepto no lo han definidocon claridad. El objeto de este artículo es intentar aclarar uno delos sentidos en los que este concepto puede ser entendido. Paraello me concentraré en las relaciones entre holismo y teorías empíricas. Haré uso de algunos de los elementos de la teoría estructuralistapropuesta por Moulines, Sneed y Balzer para dar cabalcuenta de cómo (...) se podría conciliar las tesis del holismo con lavisión estructuralista de las teorías científicas. (shrink)

El presente texto desea dar cuenta, a partir de aquellos aspectos fenomenológicos de la teoría del conocimiento de Thomas Hobbes, el fundamentoy justificación de la génesis del Estado civil. Sin lugar a dudas, serán la percepción o la intuición, lo sensible, la imaginación o la memoria, el lenguaje, el movimiento, el cómputo, el deseo, el miedo, entre otros, lo que lleva al sujeto a comprender su propia naturaleza y a partir de ella, a pactar con otros sujetos cediendo sus derechos (...) naturales a un tercero para dar fin al estado de naturaleza y poder conservar su vida y vivir en paz. (shrink)

The existence of current–time universe’s acceleration is usually modeled by means of two main strategies. The first makes use of a dark energy barotropic fluid entering by hand the energy–momentum tensor of Einstein’s theory. The second lies on extending the Hilbert–Einstein action giving rise to the class of extended theories of gravity. In this work, we propose a third approach, derived as an intrinsic geometrical effect of space–time, which provides repulsive regions under certain circumstances. We demonstrate that the effects of (...) repulsive gravity naturally emerge in the field of a homogeneous and isotropic universe. To this end, we use an invariant definition of repulsive gravity based upon the behavior of the curvature eigenvalues. Moreover, we show that repulsive gravity counterbalances the standard gravitational attraction influencing both late and early times of the universe evolution. This phenomenon leads to the present speed up and to the fast expansion due to the inflationary epoch. In so doing, we are able to unify both dark energy and inflation in a single scheme, showing that the universe changes its dynamics when \, at the repulsion onset time where this condition is satisfied. Further, we argue that the spatial scalar curvature can be taken as vanishing because it does not affect at all the emergence of repulsive gravity. We check the goodness of our approach through two cosmological fits involving the most recent union 2.1 supernova compilation. (shrink)

Agrippa’s Problem: The purpose of this paper is to present the triple problem of Agrippa that questions the possibility of reaching an epistemological justification of empirical knowledge. A possible reconstruction of such problem is one that is based on the problem of the regresum ad infinitum –one of Agripa’s modes. In this paper, a reconstruction of this problem will be presented by means of a reduction ad absurdum argument. The attempts of solving the absurd lead to the remaining two modes (...) of Agrippa’s triple problem. (shrink)

In the logic of theory change, the standard model is AGM, proposed by Alchourrón et al. (J Symb Log 50:510–530, 1985 ). This paper focuses on the extension of AGM that accounts for contractions of a theory by a set of sentences instead of only by a single sentence. Hansson (Theoria 55:114–132, 1989 ), Fuhrmann and Hansson (J Logic Lang Inf 3:39–74, 1994 ) generalized Partial Meet Contraction to the case of contractions by (possibly non-singleton) sets of sentences. In this (...) paper we present the possible worlds semantics for partial meet multiple contractions. (shrink)

This paper defends an inferential conception of scientific representation. It approaches the notion of representation in a deflationary spirit, and minimally characterizes the concept as it appears in science by means of two necessary conditions: its essential directionality and its capacity to allow surrogate reasoning and inference. The conception is defended by showing that it successfully meets the objections that make its competitors, such as isomorphism and similarity, untenable. In addition the inferential conception captures the objectivity of the cognitive representations (...) used by science, it sheds light on their truth and completeness, and it explains the source of the analogy between scientific and artistic modes of representation. (shrink)

I argue against theories that attempt to reduce scientific representation to similarity or isomorphism. These reductive theories aim to radically naturalize the notion of representation, since they treat scientist's purposes and intentions as non-essential to representation. I distinguish between the means and the constituents of representation, and I argue that similarity and isomorphism are common but not universal means of representation. I then present four other arguments to show that similarity and isomorphism are not the constituents of scientific representation. I (...) finish by looking at the prospects for weakened versions of these theories, and I argue that only those that abandon the aim to radically naturalize scientific representation are likely to be successful. (shrink)