En la presente investigación se valoran las prácticas inclusivas de 6 1 docentes de educación básica de Colima, Sonora y San Luis Potosí adscritos a escuelas urbanas y rurales de México nominadas como exitosas. Se aplicaron varios instrumentos, como la GEPIA, la SACIE, el TEIP, el Cuestionario para Favorecer los Aprendizajes de Mitchell y el Protocolo C ODCA.

Transparency is a quality of corporate social responsibility communication that enhances the relationship between the investors and the company. The objective of this paper is to analyze if the transparency of the sustainability reports is affected by the relationship of companies in different industries with their stakeholders. If this were the case, it would indicate that the pressure of significant stakeholders determines the required level of transparency of the reports. We find that the pressure of some groups of stakeholders improves (...) the quality of transparency of the reports. We extend previous research by studying the effect of stakeholder group pressure on transparency when reporting sustainability. Our results show that transparency is affected by ownership, along with size and global region. (shrink)

The U.S. Foreign Corrupt Practices Act has gained significant popularity in recent years across borders due to the increased investigation and penalties under the law. The following case is a real-life case that highlights the main provisions of the FCPA. Using cases in teaching an auditing or ethics course is much needed to develop students’ professional judgment, critical and analytical thinking skills and communication skills. Presently, there are a few cases that address the Foreign Corrupt Practices Act and its effect (...) on financial reporting and auditor responsibilities about illegal acts. The Armor Holdings case is interesting and information is publicly available regarding the circumstances that describe the bribery act, lack of whistle-blower protection, the tone at the top, and the accounting treatment. In addition, the increase in actions brought by the Securities and Exchange Commission under the FCPA since 2010 heightens the relevance of this case and underscores the need for students to learn the skills necessary to ensure compliance with FCPA and related key regulations such as the Sarbanes Oxley and the Dodd Frank Act. Therefore, cases like this one provide a rich tool to navigate topics and enforce students’ learning of client’s illegal actions and their consequences. These skills are invaluable in practice. (shrink)

Transformar el modo de vida individual es necesario para abordar la crisis ecosocial, y resulta perentorio que las políticas comprometidas con su resolución promocionen una capacidad individual de acción ecosocial. Sin embargo, parece que cierta brecha motivacional está obstaculizando la transformación del modo de vida individual. A fin de dar respuesta a esta brecha, ensayamos una mixtura del enfoque de las capacidades con las teorías de Hartmut Rosa. Argumentamos que la resonancia natural funge de factor personal de conversión necesario, si (...) bien no suficiente, para la capacidad de acción ecosocial; y que una política que promocione la resonancia natural se adecuaría también a los requisitos impuestos al desarrollo humano tanto por el enfoque de las capacidades como por la sostenibilidad. (shrink)

Background: Eye movement desensitization and reprocessing [EMDR] is an innovative, evidence-based and effective psychotherapy for post-traumatic stress disorder [PTSD]. As with other psychotherapies, the effectiveness of EMDR contrasts with a limited knowledge of its underlying mechanism of action. In its relatively short life as a therapeutic option, EMDR has not been without controversy, in particular regarding the role of the bilateral stimulation as an active component of the therapy. The high prevalence of EMDR in clinical practice and the dramatic increase (...) in EMDR research in recent years, with more than 26 randomized controlled trials published to date, highlight the need for a better understanding of its mechanism of action. Methods: We conducted a thorough systematic search of studies published until October 2017, using PubMed, ScienceDirect, Web of Knowledge and Scopus databases that examined the mechanism of action of EMDR or provided conclusions within the framework of current theoretical models of EMDR functioning. Results: Seventy-five studies were selected for review and classified into three overarching models; (i) psychological models (ii) psychophysiological models and (iii) neurobiological models. The evidence available from each study was analysed and discussed. Results demonstrated a reasonable empirical support for the working memory hypothesis and for the physiological changes associated with successful EMDR therapy. Recently, more sophisticated structural and functional neuroimaging studies using high resolution structural and temporal techniques are starting to provide preliminary evidence into the neuronal correlates before, during and after EMDR therapy. Discussion: Despite the increasing number of studies that published in recent years, the research into the mechanisms underlying EDMR therapy are still in its infancy. Studies in well-defined clinical and non-clinical populations, larger sample sizes and tighter methodological control are further needed in order to establish firm conclusions. (shrink)

Pluralist mathematical realism, the view that there exists more than one mathematical universe, has become an influential position in the philosophy of mathematics. I argue that, if mathematical pluralism is true (and we have good reason to believe that it is), then mathematical realism cannot (easily) be justified by arguments from the indispensability of mathematics to science. This is because any justificatory chain of inferences from mathematical applications in science to the total body of mathematical theorems can cover at most (...) one mathematical universe. Indispensability arguments may thus lose their central role in the debate about mathematical ontology. (shrink)

I argue that recent attempts to deflect Access Problems for realism about a priori domains such as mathematics, logic, morality, and modality using arguments from evolution result in two kinds of explanatory overkill: the Access Problem is eliminated for contentious domains, and realist belief becomes viciously immune to arguments from dispensability, and to non-rebutting counter-arguments more generally.

The existence of fundamental moral disagreements is a central problem for moral realism and has often been contrasted with an alleged absence of disagreement in mathematics. However, mathematicians do in fact disagree on fundamental questions, for example on which set-theoretic axioms are true, and some philosophers have argued that this increases the plausibility of moral vis-à-vis mathematical realism. I argue that the analogy between mathematical and moral disagreement is not as straightforward as those arguments present it. In particular, I argue (...) that pluralist accounts of mathematics render fundamental mathematical disagreements compatible with mathematical realism in a way in which moral disagreements and moral realism are not. 11. (shrink)

Public engagement is one of the fundamental pillars of the European programme for research and innovation _Horizon 2020_. The programme encourages engagement that not only fosters science education and dissemination, but also promotes two-way dialogues between scientists and the public at various stages of research. Establishing such dialogues between different groups of societal actors is seen as crucial in order to attain epistemic as well as social desiderata at the intersection between science and society. However, whether these dialogues can actually (...) help attaining these desiderata is far from obvious. This paper discusses some of the costs, risks, and benefits of dialogical public engagement practices, and proposes a strategy to analyse these argumentative practices based on a three-tiered model of epistemic exchange. As a case study, we discuss the phenomenon of vaccine hesitancy, arguably a result of suboptimal public engagement, and show how the proposed model can shed new light on the problem. (shrink)

Can art, religion, or philosophy afford ineffable insights? If so, what are they? The idea of ineffability has puzzled philosophers from Laozi to Wittgenstein. In Ineffability and its Metaphysics: The Unspeakable in Art, Religion and Philosophy, Silvia Jonas examines different ways of thinking about what ineffable insights might involve metaphysically, and shows which of these are in fact incoherent. Jonas discusses the concepts of ineffable properties and objects, ineffable propositions, ineffable content, and ineffable knowledge, examining the metaphysical pitfalls involved (...) in these concepts. Ultimately, she defends the idea that ineffable insights as found in aesthetic, religious, and philosophical contexts are best understood in terms of self-acquaintance, a particular kind of non-propositional knowledge. Ineffability as a philosophical topic is as old as the history of philosophy itself, but contributions to the exploration of ineffability have been sparse. The theory developed by Jonas makes the concept tangible and usable in many different philosophical contexts. (shrink)

This article presents the first, systematic analysis of the ethical challenges posed by recommender systems through a literature review. The article identifies six areas of concern, and maps them onto a proposed taxonomy of different kinds of ethical impact. The analysis uncovers a gap in the literature: currently user-centred approaches do not consider the interests of a variety of other stakeholders—as opposed to just the receivers of a recommendation—in assessing the ethical impacts of a recommender system.

The Western world is experiencing a resurgence of interest in the therapeutic potential of psychedelics, most of which are derived from plants or fungi with a history of Indigenous ceremonial use. Recent research has revealed that psychedelic compounds have the potential to address treatment‐resistant depression and anxiety, as well as post‐traumatic stress disorder and addictions. These findings have contributed to the decriminalization of psychedelics in some jurisdictions and their legalization in others. Despite psychedelics’ opaque legal status, numerous companies and individuals (...) are profiting from speculative investments with few, if any, benefits accruing to Indigenous Peoples. In this paper, we suggest that the aptly named “psychedelic renaissance,” like the European Renaissance, is made possible by colonial extractivism. We further suggest that Indigenous philosophical traditions offer alternative approaches to reorient the “psychedelic renaissance” towards a more equitable future for Indigenous Peoples, psychedelic medicines, and all our relations. (shrink)

What are the relevant values to the appraisal of research programs? This question remains hotly debated, as philosophers have recently proposed many lists of values potentially relevant to scientific appraisal. Surprisingly, despite being mentioned in many lists, little attention has been paid to fruitfulness. It is unclear how fruitfulness should be explicated, and whether it has any substantial role in scientific appraisal. In this paper, I argue we should explicate fruitfulness as the capacity to develop of research programs. Moreover, I (...) provide a novel strategy to assess and compare the fruitfulness of programs focused on their research questions and heuristics. To illustrate how this strategy would work, I will discuss a case study, namely the adaptationist program in evolutionary psychology. (shrink)

En este estudio se exploran recursos didácticos para fomentar la reflexión intercultural en el aula de idiomas. En un aula de alemán como lengua extranjera de una universidad española, con alumnas y alumnos de nivel inicial (A1.2), se integraron actividades para el desarrollo de la competencia comunicativa intercultural en una programación anterior de orientación comunicativa y con fuerte presencia de la interacción oral entre pares. Los resultados obtenidos en esta investigación cuasi-experimental informan sobre el desarrollo de la conciencia cultural de (...) las y los participantes. (shrink)

Scientists are becoming increasingly aware of a “replicability crisis” in the behavioral, social, and biomedical sciences. Researchers have made progress identifying statistical and methodological...

It is well-established that algorithms can be instruments of injustice. It is less frequently discussed, however, how current modes of AI deployment often make the very discovery of injustice difficult, if not impossible. In this article, we focus on the effects of algorithmic profiling on epistemic agency. We show how algorithmic profiling can give rise to epistemic injustice through the depletion of epistemic resources that are needed to interpret and evaluate certain experiences. By doing so, we not only demonstrate how (...) the philosophical conceptual framework of epistemic injustice can help pinpoint potential, systematic harms from algorithmic profiling, but we also identify a novel source of hermeneutical injustice that to date has received little attention in the relevant literature: epistemic fragmentation. Epistemic fragmentation is a structural characteristic of algorithmically-mediated environments that isolate individuals, making it more difficult to develop, uptake and apply new epistemic resources. This, in turn, can impede the identification and conceptualisation of emerging harms in these environments. We trace the occurrence of hermeneutical injustice back to the fragmentation of the epistemic experiences of individuals, who are left more vulnerable by the inability to share, compare, and learn from shared experiences. (shrink)

Modulating connectivity measures in EEG-based neurofeedback studies is assumed to be a promising therapeutic and training tool. However, little is known so far about its effects and trainability. In the present study, we investigated the effects of up- and down-regulating SMR coherence by means of neurofeedback training on EEG activity and memory functions. Twenty adults performed 10 neurofeedback training sessions in which half of them tried to increase EEG coherence between Cz and CPz in the SMR frequency range, while the (...) other half tried to down-regulate coherence. Up-regulation of SMR coherence led to between- and within-session changes in EEG coherence. SMR power increased across neurofeedback training sessions but not within training sessions. Cross-over training effects on baseline EEG measures were also observed in this group. Up-regulation of SMR coherence was also associated with improvements in memory functions when comparing pre- and post-test results. Participants were not able to down-regulate SMR coherence. This group did not show any changes in baseline EEG measures or memory functions comparing pre- and post-test. Our results provide insights in the trainability and effects of connectivity-based neurofeedback training and indications for its practical application. (shrink)

There has been much debate recently on the question whether essence can explain modality. Here, I examine two routes to an essentialist account of modality. The first is Hale's argument for the necessity of essence, which I will argue is — notwithstanding recent attempted defences of it — invalid by its very structure. The second is the proposal that it is essential to essential truth that it is necessary. After offering three possible versions of the view, I will argue that (...) each fails to provide a metaphysical explanation of necessity in terms of essence. (shrink)

A partir de la revisión de bibliografía especializada y del análisis crítico-constructivo del trabajo de Dow (2013) que examina los anacronismos existentes en la recreación digital de la ciudad de Florencia en el videojuego Assassin’s Creed II (2009), el presente trabajo explora la capacidad que tienen este tipo de videojuegos para reconstruir la ambientación de un período histórico concreto a partir del uso de anacronismos derivados de licencias creativas y de las necesidades artísticas propias del videojuego. Los resultados demuestran que (...) el anacronismo es una herramienta que los desarrolladores de videojuegos históricos utilizan de forma intencionada para transmitir una imagen del pasado que resulte vigente y atractiva en la actualidad. Igualmente se evidencia la necesidad de una metodología propia dentro de los denominados Game Studies que aborde el videojuego como objeto de estudio artístico lejos del enfoque de líneas de investigación como los Historical Game Studies y otras disciplinas humanísticas. (shrink)

Trotz großer Verbesserungen in der Versorgung von Menschen mit Typ-1-Diabetes (MmT1D) werden auch bei hoher Motivation und hohem Wissensstand der T1D-Grundlagen und -Therapie die angestrebten Blutglukose-Werte häufig nicht erreicht. Daher hat sich aus der Gruppe der MmT1D und ihrer Angehörigen eine Gemeinschaft zusammengefunden, die auf Basis kommerzieller Technologien sogenannte Open-Source-Closed-Loop-Systeme (OSCLS) entwickelt, welche eine automatisierte Insulinabgabe ermöglichen. OSCLS haben das Potenzial, das Management der Erkrankung zu erleichtern und normnähere Blutglukose-Werte zu erzielen. Die OSCLS sind jedoch weder offiziell geprüfte noch zugelassene (...) Systeme. Aus dem Blickwinkel der Technikfolgenabschätzung untersucht die vorliegende Arbeit mittels leitfadengestützter qualitativer Interviews mit Nutzenden und Fachkräften vorrangig, warum sich die Nutzenden der OSCLS für die Systeme entscheiden und wie sich diese auf das Leben der Nutzenden sowie auf das Gesundheitswesen auswirken. Zudem ordnet diese Arbeit die OSCLS-Bewegung in vergleichbare aktivistische Bewegungen in Medizin und Gesundheit ein sowie in den Kontext der derzeit immer stärker werdenden Bewegung der Patient Innovation. Die Autorin Silvia Woll war als Geisteswissenschaftlerin seit 2015 als Mitarbeiterin am Institut für Technikfolgenabschätzung und Systemanalyse (ITAS) im Karlsruher Institut für Technologie (KIT) tätig. Ihre inhaltlichen Schwerpunkte umfassten dabei Technologien für Gesundheit und Ernährung, Technikethik und partizipative Verfahren wie die Citizen Science. (shrink)

El texto aborda uno de los temas de la violencia contemporánea, la violencia política de las mujeres. A partir de los problemas para nombrar la violencia y de los análisis de A. Cavarero sobre el «horrorismo», se centra en dos casos: la muerte de Yoyes y las mujeres bombas suicidas chechenas, mostrando las construcciones sociales y culturales de sexo/género, sus mitos y estereotipos, en cuanto constituyen una de las raíces más profundas y persistentes de la violencia. En definitiva, de lo (...) que se trata es de reflexionar y comprender la vulnerabilidad de la condición humana. (shrink)

The paper considers one of the most enigmatic problems of Wittgenstein`s Tractatus - the problem of solipsism. The authorś task is to reveal how the discussion of solipsism illuminates Wittgenstein`s metaphysical view in this treatise. Wittgenstein`s method is considered as one through which the status of what cannot be said is demonstrated. Wittgenstein has not embrased solipsism or idealism in the Tractatus, and neither has he rejected metaphysics as a whole. His attack has been directed against dogmatic philosophy and ethics, (...) against the effort to say what cannot be said in true/false propositions. The discussion of solipsism brings into philosophy the importance of metaphysical "I" as a transcendental limit of the world and language. Wittgenstein`s aim in the Tractatus has been twofold: a) to show the nonsensicality of philosophical, ethical, aesthetical propositions , b) to emphasize, that the inexpresibility of the higher is the most important thing in our lives. (shrink)

In two studies, children's concepts of various types of ordinarily unobservable entities were examined. Study 1 confirmed earlier findings in showing that children aged 4–9 years are confident of the existence of scientific entities such as germs as well as religious beings such as God. At the same time, both age groups are skeptical of the existence of various mythical beings such as mermaids. In Study 2, older children aged 10–12 years were probed for their concepts of religious as compared (...) to scientific phenomena. Despite considerable confidence in each type, older children differentiated between them, both with respect to their level of confidence and their pattern of justification. (shrink)

This article analyses the ethical aspects of multistakeholder recommendation systems (RSs). Following the most common approach in the literature, we assume a consequentialist framework to introduce the main concepts of multistakeholder recommendation. We then consider three research questions: who are the stakeholders in a RS? How are their interests taken into account when formulating a recommendation? And, what is the scientific paradigm underlying RSs? Our main finding is that multistakeholder RSs (MRSs) are designed and theorised, methodologically, according to neoclassical welfare (...) economics. We consider and reply to some methodological objections to MRSs on this basis, concluding that the multistakeholder approach offers the resources to understand the normative social dimension of RSs. (shrink)

This book draws on Iris Murdoch's philosophy to explore questions related to the importance of attention in ethics. In doing so, it also engages with Murdoch's ideas about the existence of a moral reality, the importance of love, and the necessity but also the difficulty, for most of us, of fighting against our natural self-centred tendencies. Why is attention important to morality? This book argues that many moral failures and moral achievements can be explained by attention. Not only our actions (...) and choices, but the possibilities we choose among, and even the meaning what we perceive, are to a large extent determined by whether we pay attention, and what we attend do. In this way, the book argues that attention is fundamental, though often overlooked, in morality. While the book's discussion of attention revolves primarily around Murdoch's thought, it also engages significantly with Simone Weil, who introduced the concept of attention in a spiritual context. The book also engages with contemporary debates concerning moral perception and motivation, empirical psychology, animal ethics, and Buddhist philosophy. The Ethics of Attention will be of interest to researchers and advanced students working on Iris Murdoch, Simone Weil, ethics and moral psychology, and the philosophy of attention. (shrink)

In recent years, aggressive and conservative nationalistic forces have been growing stronger worldwide (Rydgren 2018). Increased random terrorist attacks are now occurring in sites previously thoug...

Se propone un método paradójico para el análisis del Derecho. Este método de conocimiento consiste en una mirada a la complejidad del fenómeno jurídico, presentando sus aspectos complejos en forma de aparentes contradicciones. No son contradicciones reales, sino elementos complejos que, al constatarlos como0 dándose conjuntamente, nos permite dotar de profundidad nuestra reflexión. Hay diferentes maneras de definir la paradoja, pero aquí nos centramos en las cualidades literarias, retóricas y filosóficas que ofrece el tipo o tipos de paradoja utilizados, de (...) forma magistral, por el escritor inglés G.K. Chesterton. De las funciones de las paradojas (desde esta perspectiva, pero no solamente) son especialmente útiles para el análisis jurídico: criticar el sistema de pensamiento y abrir a la realidad. La primera se relaciona con el Derecho porque este siempre está bajo la amenaza del formalismo. La segunda se relaciona con él porque el Derecho es un fenómeno humano, de forma que, cuando hablamos de Derecho, estamos analizando la realidad compleja de la persona humana. Esta nos e puede reducir a una sola de sus dimensiones, y por ello es necesaria la paradoja, para equilibrar los distintos enfoques del análisis. Tras explicar todo esto, se procede en el artículo a sugerir siete paradojas que muestran la complejidad del fenómeno jurídico y pretenden ser retos al pensamiento. (shrink)

A través de este escrito se pretende dar a conocer algunos aportes de lafundamentación de la ciencia de la mecánica en el siglo XVIII adelantados porLeohnard Euler y ponerlos en relación con algunas de las respectivaspropuestas de Jean le Rond d’Alelmbert. Se resalta, en particular, que laspreocupaciones de estos dos pensadores no se limitan sólo a una intención dematematización de la ciencia de la mecánica. También existe en ellos la intenciónexplícita de clarificación de la mecánica a través de la reorganizaciónconceptual (...) de las nociones primeras y de la identificación de los principios enlos que debe fundamentarse esta ciencia, ambas intenciones soportadas enpresupuestos epistemológicos sobre la certeza y la validez de nuestroconocimiento. (shrink)

It is common in psychiatry and other sciences to describe an individual or a type of individual in terms of its disposition to manifest specific effects in a particular range of circumstances. According to one understanding, dispositions are statistical regularities of an individual or type of individual in specific circumstances. According to another understanding, dispositions are properties of individuals in virtue of which such regularities hold. This entry considers a number of ways of making each of these senses of disposition (...) more precise while discussing a number of dangers lurking in careless use of the concept of a disposition. (shrink)

This book provides an up-to-date revision of materialism’s central tenets, its main varieties, and the place of materialistic philosophy vis a vis scientific knowledge. Materialism has been the subject of extensive and rich controversies since Robert Boyle introduced the term for the first time in the 17th century. But what is materialism and what can it offer today? The term is usually defined as the worldview according to which everything real is material. Nevertheless, there is no philosophical consensus about whether (...) the meaning of matter can be enlarged beyond the physical. As a consequence, materialism is often defined in stark exclusive and reductionist terms: whatever exists is either physical or ontologically reducible to it. This conception, if consistent, mutilates reality, excluding the ontological significance of political, economic, sociocultural, anthropological and psychological realities. Starting from a new history of materialism, the present book focuses on the central ontological and epistemological debates aroused by today’s leading materialist approaches, including some little known to an anglophone readership. The key concepts of matter, system, emergence, space and time, life, mind, and software are checked over and updated. Controversial issues such as the nature of mathematics and the place of reductionism are also discussed from different materialist approaches. As a result, materialism emerges as a powerful, indispensable scientifically-supported worldview with a surprising wealth of nuances and possibilities. (shrink)

The situation caused by the 2019 coronavirus disease has been representing a great source of concern and a challenge to the psychological well-being of many individuals around the world. For couples in particular, this extraordinary rise in concern, combined with the stress posed by the virus containment measures, such as prolonged cohabitation and lack of support networks, may have increased the likelihood of couple problems. At the same time, however, COVID-19 concerns may have been a stimulus to activate couples’ stress (...) management processes. A couple’s resource, which may have an important role in dealing with COVID-19 concerns and stress, is dyadic coping, i.e., the process through which partners face stress together. Drawing on a sample of 1,823 Italian individuals involved in a couple relationship, the current study tested a serial mediation model in which concerns about COVID-19 predicted psychological well-being, through both explicit stress communication and perceived partner dyadic coping responses. In addition, the study explored whether this dyadic coping process functioned the same way in satisfied and dissatisfied couples. Results showed that concerns about the situation related to COVID-19 significantly threatened individuals’ psychological well-being. However, these concerns positively predicted explicit stress communication, which in turn positively predicted perceived partner’s dyadic coping responses, which finally positively predicted psychological well-being. In addition, in the group of dissatisfied individuals, the association between explicit stress communication and perceived partners’ dyadic coping responses was not significant. The present study adds to the research on couples’ coping by testing for the first time the whole theoretical model of dyadic coping and does so during a global emergency situation. The study also suggests key components of preventive interventions for individuals in couples. (shrink)

This paper is motivated by a puzzling observation made when conducting a case study of ProCredit, a well-known social bank. The HR practices that this social enterprise adopted to cultivate mission identification were unfavorably impacting its retention rate. Building on prior research and our analysis of the case, we argue the need for SEs to embrace HRM systems that are both mission-identification proactive and employee-retention preemptive. It theorizes that these HRM systems should be attuned to the labor market conditions that (...) frame how SEs develop and sustain Person-Organization fit. Attuned HRM systems are adapted to labor market conditions and tuned to support SEs’ adeptness to operate against the grain of country and industry norms. (shrink)

The Scottish Enlightenment shaped a new conception of history as a gradual and universal progress from savagery to civil society. Whereas women emancipated themselves from the yoke of male-masters, men in turn acquired polite manners and became civilized. Such a conception, however, presents problematic questions: why were the Americans still savage? Why was it that the Europeans only had completed all the stages of the historic process? Could modern societies escape the destiny of earlier empires and avoid decadence? Was there (...) a limit beyond which women's influence might result in dehumanization? The Scottish Enlightenment's legacy for modernity emerges here as a two-faced Janus, an unresolved tension between universalism and hierarchy, progress and the limits of progress. (shrink)

Macroscopic irreversible processes emerge from fundamental physical laws of reversible character. The source of the local irreversibility seems to be not in the laws themselves but in the initial and boundary conditions of the equations that represent the laws. In this work we propose that the screening of currents by black hole event horizons determines, locally, a preferred direction for the flux of electromagnetic energy. We study the growth of black hole event horizons due to the cosmological expansion and accretion (...) of cosmic microwave background radiation, for different cosmological models. We propose generalized McVittie co-moving metrics and integrate the rate of accretion of cosmic microwave background radiation onto a supermassive black hole over cosmic time. We find that for flat, open, and closed Friedmann cosmological models, the ratio of the total area of the black hole event horizons with respect to the area of a radial co-moving space-like hypersurface always increases. Since accretion of cosmic radiation sets an absolute lower limit to the total matter accreted by black holes, this implies that the causal past and future are not mirror symmetric for any spacetime event. The asymmetry causes a net Poynting flux in the global future direction; the latter is in turn related to the ever increasing thermodynamic entropy. Thus, we expose a connection between four different “time arrows”: cosmological, electromagnetic, gravitational, and thermodynamic. (shrink)

I discuss the recent claims made by Mario Bunge on the philosophical implications of the discovery of gravitational waves. I think that Bunge is right when he points out that the detection implies the materiality of spacetime, but I reject his identification of spacetime with the gravitational field. I show that Bunge’s analysis of the spacetime inside a hollow sphere is defective, but this in no way affects his main claim.

En el presente artículo se analizan las transformaciones que, a partir del siglo IV, experimentan los obispos cristianos por su estrecha vinculación con el poder imperial: si en un principio Constantino quiso ponerlos a su servicio como estrechos colaboradores en la administración del Imperio, pronto algunos de ellos, con gran personalidad, se sirvieron de los honores y privilegios adquiridos para reclamar una independencia allí donde — a diferencia de lo que sucederá en Constantinopla a partir de Teodosio I— su elección (...) no dependía del emperador. (shrink)

Maimonides famously holds that, while it is perfectly possible to know (and say) that God exists, it is impossible to know (and say) what God is like because any positive attri- bution contradicts God’s essential oneness. Consequently, pure equivocity obtains between descriptions of the divine and descriptions of any other being. But this raises a puzzle: Knowledge of God seems vacuous if we lack all comprehension of God’s nature - so how can we have any comprehension of the divine without (...) being able to say what it is that we know? In this essay, I defend the substantiality of the concept of knowledge of God on Maimonides’ apophatic picture. Drawing on the concept of non-propositional knowledge, I argue that knowledge and comprehension can come apart, which lends support to Maimonides’ thesis that knowledge of God, though substantial and objective, cannot be expressed. (shrink)