In this research, a sliding mode regulator with sine mapping is suggested for the stabilization of electricity generators being affected by magnet interaction nonlinearities and generator nonlinearities. To reach this goal, our suggested regulator has the following contributions: it starts from the sliding mode regulator with the modifications that the saturation mapping is used to reach a smoother performance instead of the signum mapping, and the sine mapping is applied to reach an upper bound in the proportional gain error, it (...) is used to reach some chosen constant behaviors for the angle position, angle speed, and current in the electricity generators, and its stabilization is ensured based on the Lyapunov approach. We show the simulation of the suggested regulator in two electricity generators. (shrink)

The purpose of this study is to examine how faith-led practices in family firms affect organizational stewardship. Current studies highlight the relevance of religious adherence for family businesses, yet provide limited understanding of how this shapes the key traits of these organizations. Drawing on six autobiographies of family business leaders who openly express their adherence to their faith, and adopting an open-systems analysis of these autobiographies, we demonstrate that faith-led values influence organizational and leadership practices. Overall, our study suggests that (...) the influence of religious beliefs in the organizational practices of family businesses have greater repercussions than previously thought. By introducing a faith-led approach to stewardship, we enrich the theoretical discussion around stewardship and the relevance of religion in family business. (shrink)

The purpose of this study is to examine how faith-led practices in family firms affect organizational stewardship. Current studies highlight the relevance of religious adherence for family businesses, yet provide limited understanding of how this shapes the key traits of these organizations. Drawing on six autobiographies of family business leaders who openly express their adherence to their faith, and adopting an open-systems analysis of these autobiographies, we demonstrate that faith-led values influence organizational and leadership practices. Overall, our study suggests that (...) the influence of religious beliefs in the organizational practices of family businesses have greater repercussions than previously thought. By introducing a faith-led approach to stewardship, we enrich the theoretical discussion around stewardship and the relevance of religion in family business. (shrink)

In June 2016, David Chalmers delivered the Petrus Hispanus Lectures at the LanCog research group, University of Lisbon, on the subject of objects, properties, and perception in virtual reality environments. The paper resulting from these lectures was subsequently published in Disputatio as “The Virtual and the Real” (vol. IX, 2017, No. 46, pp. 309–52). In it, Chalmers defends virtual realism, according to which virtual objects are bona fide digital objects with virtual counterparts of perceptible properties such as colour and (...) shape, and perception in virtual reality environments is typically veridical rather than illusory. This special issue collects responses to Chalmers due to Claus Beisbart, Jesper Juul, Peter Ludlow, Neil McDonnell and Nathan Wildman, Alyssa Ney, Eric Schwitzgebel, and Marc Silcox; together with a detailed response by Chalmers to each paper. You can read the target article (Chalmers 2017, “The Virtual and the Real”) under discussion in this Special Issue here: https://doi.org/10.1515/disp-2017-0009. (shrink)

True ecotourism requires us to regain an understanding of the inextricable links between the habitats of a region, including its inhabitants, and their habits. With this systemic approach that integrates economic, ecological, and ethical dimensions, we define ecotourism as “an invitation to a journey (‘tour’) to appreciate and share the ‘homes’ (oikos) of diverse human and non-human inhabitants, their singular habits and habitats.” Today, mass nature tourism often denies theselinks and is generating biocultural homogenization, socio-ecological degradation, and marked distributive injustices (...) in iconic places, such as Costa Rica, the Galapagos and Cape Horn. In order to implement genuine ecotourism in Latin America and elsewhere, it is imperative to overcome marketing ambiguities, and pay close attention to local autonomy and biocultural diversity. (shrink)

O artigo apresenta uma pesquisa qualitativa que relata a organização espacial das fazendas aquícolas no litoral central de Santa Catarina, nas comunidades da Praia de Fora e Enseada de Brito, as quais se encontram no município de Palhoça, pertencentes ao Aglomerado Urbano de Florianópolis. As características de ocupação urbana nas localidades supracitadas remontam ao século XVIII, mantendo as atividades econômicas extrativistas e rurais até a segunda metade do século XX. A partir da década de 1960/1970 verificou-se acelerado processo de construção (...) de casas de veraneio, sobrepujado por uma intensa urbanização com moradores fixos por causa do calçamento da via principal em 2010. A legalização das fazendas marinhas ocorreu nesta mesma época, como parte do “Plano Nacional de Desenvolvimento da Maricultura”, nos estados litorâneos brasileiros com aptidão ao cultivo nas comunidades envolvidas, apesar dos conflitos socioambientais. O município de Palhoça detém a maior produção de mexilhões em Santa Catarina. O marisco é um alimento popular no litoral catarinense e também uma iguaria na gastronomia internacional. A maior ameaça ao setor são os efluentes urbanos e os seus impactos ambientais. A falta de uma associação de produtores, bem como de um planejamento voltado à ocupação territorial de modo controlado e racional, tomando como fim a preservação do ecossistema de interesse, afeta a continuidade e o desenvolvimento econômico da atividade. (shrink)

When an English translation of Being and Event appeared in 2005, Alain Badiou took the opportunity to reminisce about the initial French publication some twenty years before: “at that moment I was quite aware of having written a ‘great’ book of philosophy.” He located that greatness in four “affirmations” and one “radical thesis.”.

This letter addresses the editorial decision to publish the article, “Research on group differences in intelligence: A defense of free inquiry” (Cofnas, 2020). Our letter points out several critical problems with Cofnas's article, which we believe should have either disqualified the manuscript upon submission or been addressed during the review process and resulted in substantial revisions.

Purpose This paper aims to examine whether there are morally defensible reasons for using or operating websites that offer distributed denial-of-service attacks on a specified target to users for a price. Booters have been linked to some of the most powerful DDoS attacks in recent years. Design/methodology/approach The authors identify the various parties associated with booter websites and the means through which booters operate. Then, the authors present and evaluate the two arguments that they claim may be used to justify (...) operating and using booters: that they are a useful tool for testing the ability of networks and servers to handle heavy traffic, and that they may be used to perform DDoS attacks as a form of civil disobedience on the internet. Findings The authors argue that the characteristics of existing booters disqualify them from being morally justified as network stress testing tools or as a means of performing civil disobedience. The use of botnets that include systems without the permission of their owners undermines the legitimacy of both justifications. While a booter that does not use any third-party systems without permission might in principle be justified under certain conditions, the authors argue that it is unlikely that any existing booters meet these requirements. Practical/implications Law enforcement agencies may use the arguments presented here to justify shutting down the operation of booters, and so reduce the number of DDoS attacks on the internet. Originality/value The value of this work is in critically examining the potential justifications for using and operating booter websites and in further exploring the ethical aspects of using DDoS attacks as a form of civil disobedience. (shrink)

We give $A_p$ type conditions which are sufficient for two-weight, strong $$ inequalities for Calderón-Zygmund operators, commutators, and the Littlewood-Paley square function $g^*_\lambda $. Our results extend earlier work on weak $$ inequalities in [13].

A growing number of recreational races are being held in different locations, drawing many local and visiting runners. This study examined the relationships between quality, value, satisfaction, and loyalty among runners in a recreational race and examines potential differences in relationships between these constructs based on the runners’ experience. The participants were 985 runners with a mean age of 40.74±9.41years. Validated, reliable ad hoc instruments were used. A multi-group analysis was performed to ascertain the existence of relationships between the constructs (...) and differences in the relationships between the different study groups. The results show that quality is a direct antecedent of value and satisfaction. Value is directly related to satisfaction and indirectly related to loyalty. Satisfaction is related to the loyalty of participants in the race. Differences in the relationship between satisfaction and loyalty were dependent upon the runners’ experience. Loyalty to a race depends primarily on satisfaction and is modified by the runners’ experience. (shrink)

We are addressing this letter to the editors of Philosophical Psychology after reading an article they decided to publish in the recent vol. 33, issue 1. The article is by Nathan Cofnas and is entitled “Research on group differences in intelligence: A defense of free inquiry” (2020). The purpose of our letter is not to invite Cofnas’s contribution into a broader dialogue, but to respectfully voice our concerns about the decision to publish the manuscript, which, in our opinion, fails to (...) meet a range of academic quality standards usually expected of academic publications. (shrink)

This paper analyzes the data collected about 5,388 videos from the 15 leading channels from Spain, the United Kingdom, and the United States focusing on toys and in which the protagonists are children under 14 years of age. It aims to determine whether there are common patterns of use, production, and activity in videos by kid YouTubers. Specific software was developed to enable information to be gathered from the YouTube platform through the YouTube Data API by analyzing the date on (...) which the video was published, length, number of visits, likes, dislikes, and visits/vote. The main conclusions drawn are that a channel’s success is not dependent on a pattern or specific characteristics, although an impulse pattern has been detected; participation by children who consume content in the United States differs significantly from participation by those in Europe; and certain similarities based on video length and production frequency can be observed between channels. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Narrative Symposium:Conflicting Interests in MedicineLaura Jean Bierut, Sal Cruz-Flores, Laura E. Hodges, Anthony A. Mikulec, Govind K. Nagaldinne, Erine L. Bakanas, John F. Peppin, Joel S. Perlmutter, William H. Seitz Jr., Edward Diao, Andre N. Sofair, and David M. Zientek• To Recruit or Not to Recruit for a Clinical Trial• An Unexpected Lesson• Am I on call for the entire Midwest?• Why is Medicare Wasting Away?• The (...) Downside of the Informed Consent Juggernaut• Expert Testimony at the Food and Drug Administration: Who Wants the Truth?• Crossroads: The Intersection of Personal, Professional Society, and Industry Relationships• A Change of Heart• The Evolution of Conflicts of Interest in a New Subspecialty: A Case Study of the Development of Interventional CardiologyCopyright © 2011 The Johns Hopkins University Press... (shrink)

A volunteer effort by Artificial Intelligence researchers has shown it can deliver significant research outcomes rapidly to help tackle COVID-19. Within two months, CLAIRE’s self-organising volunteers delivered the World’s first comprehensive curated repository of COVID-19-related datasets useful for drug-repurposing, drafted review papers on the role CT/x-ray scan analysis and robotics could play, and progressed research in other areas. Given the pace required and nature of voluntary efforts, the teams faced a number of challenges. These offer insights in how better to (...) prepare for future volunteer scientific efforts and large scale, data-dependent AI collaborations in general. We offer seven recommendations on how to best leverage such efforts and collaborations in the context of managing future crises. (shrink)

Defeasible argumentation has been applied successfully in several real-world domains in which it is necessary to handle incomplete and contradictory information. In recent years, there have been interesting attempts to carry out argumentation processes supported by massive repositories developing argumentative reasoning applications. One of such efforts builds arguments by retrieving information from relational databases using the DBI-DeLP framework; this article presents eDBI-DeLP, which extends the original DBI-DeLP framework by providing two novel aspects which refine the interaction between DeLP programs and (...) relational databases. First, we expand the expressiveness of dbi-delp programs by providing ways of controlling how the information in databases is recovered; this is done by introducing filters that enable an improved fine-grained control on the argumentation processes which become useful in applications, providing the semantics and the implementation of such filters. Second, we introduce an argument comparison criterion which can be adjusted at the level of literals to model particular features such as credibility and topic expertise, among others. These new tools can be particularly useful in environments such as medical diagnosis expert systems, decision support systems, or recommender systems based on argumentation, where datasets are often provided in the form of relational databases. (shrink)

In this note, the problem of tracking random references and rejecting random perturbations in a quadrotor, both generated by an auxiliary system named exosystem, is solved by extending the deterministic tracking problem to the area of stochastic processes. Besides, it is considered that only a part of the state vector of the quadrotor is available through measurements. As a consequence, the state vector of the plant must be estimated in order to close the control loop. On this basis, a controller (...) to track random references and to reject random perturbations is developed by combining a Kalman filter to estimate the references and perturbations of an exosystem and an observer to estimate the states of a quadrotor. Besides, to obtain a more practical controller, the analysis is carried out in discrete time. Numerical simulations are used in a quadrotor to confirm the validity and effectiveness of the proposed control. (shrink)

Livro-texto de introdução à lógica, com (mais do que) pitadas de filosofia da lógica, produzido como uma versão revista e ampliada do livro Forallx: Calgary. Trata-se da versão de 13 de outubro de 2022. Comentários, críticas, correções e sugestões são muito bem-vindos.

Background: This research explores how public awareness and attitudes toward donation and transplantation policies may contribute to Spain's success in cadaveric organ donation. Materials and Methods: A representative sample of 813 people residing in Andalusia (Southern Spain) were surveyed by telephone or via Internet between October and December 2018. Results: Most participants trust Spain's donation and transplantation system (93%) and wish to donate their organs after death (76%). Among donors, a majority have expressed their consent (59%), and few nondonors have (...) expressed their refusal (14%). Only a minority are aware of the presumed consent system in force (28%) and feel sufficiently informed regarding the requirements needed to be an organ donor (16%). Participants mainly consider that relatives should represent the deceased's preferences and be consulted when the deceased's wishes are unknown, as is the case in Spain. Conclusion: Public trust in the transplant system may contribute to Spain's high performance in organ donation. High levels of societal support toward organ donation and transplantation do not correspond with similar levels of public awareness of donation and transplantation policies in Spain. (shrink)

The new wave of ‘foundation models’—general-purpose generative AI models, for production of text (e.g., ChatGPT) or images (e.g., MidJourney)—represent a dramatic advance in the state of the art for AI. But their use also introduces a range of new risks, which has prompted an ongoing conversation about possible regulatory mechanisms. Here we propose a specific principle that should be incorporated into legislation: that any organization developing a foundation model intended for public use must demonstrate a reliable detection mechanism for the (...) content it generates, as a condition of its public release. The detection mechanism should be made publicly available in a tool that allows users to query, for an arbitrary item of content, whether the item was generated (wholly or partly) by the model. In this paper, we argue that this requirement is technically feasible and would play an important role in reducing certain risks from new AI models in many domains. We also outline a number of options for the tool’s design, and summarize a number of points where further input from policymakers and researchers would be required. (shrink)

To analyze which ethically relevant biases have been identified by academic literature in artificial intelligence algorithms developed either for patient risk prediction and triage, or for contact tracing to deal with the COVID-19 pandemic. Additionally, to specifically investigate whether the role of social determinants of health have been considered in these AI developments or not. We conducted a scoping review of the literature, which covered publications from March 2020 to April 2021. ​Studies mentioning biases on AI algorithms developed for contact (...) tracing and medical triage or risk prediction regarding COVID-19 were included. From 1054 identified articles, 20 studies were finally included. We propose a typology of biases identified in the literature based on bias, limitations and other ethical issues in both areas of analysis. Results on health disparities and SDOH were classified into five categories: racial disparities, biased data, socio-economic disparities, unequal accessibility and workforce, and information communication. SDOH needs to be considered in the clinical context, where they still seem underestimated. Epidemiological conditions depend on geographic location, so the use of local data in studies to develop international solutions may increase some biases. Gender bias was not specifically addressed in the articles included. The main biases are related to data collection and management. Ethical problems related to privacy, consent, and lack of regulation have been identified in contact tracing while some bias-related health inequalities have been highlighted. There is a need for further research focusing on SDOH and these specific AI apps. (shrink)

Late in 1990, the Center for the Study of Ethics in the Professions at Illinois Institute of Technology (lIT) received a grant of more than $200,000 from the National Science Foundation to try a campus-wide approach to integrating professional ethics into its technical curriculum.! Enough has now been accomplished to draw some tentative conclusions. I am the grant's principal investigator. In this paper, I shall describe what we at lIT did, what we learned, and what others, especially philosophers, can learn (...) from us. We set out to develop an approach that others could profitably adopt. I believe that we succeeded. (shrink)

The first research report of the APDA project. Findings include that "gender is a significant predictor of type of placement (i.e. permanent versus temporary). The intercept tells us that the odds for male participants to have a permanent academic placement within the first two years after graduation are statistically significant at .37, p < 0.001 when year of graduation is held constant. The odds for female participants to have a permanent academic placement are 1.85, p < 0.001 when graduation year (...) is held constant. In terms of differences, the odds of having a permanent (versus temporary) academic placement are 85% greater for females as compared to males.". (shrink)

The multiobjective optimization on the basis of ratio analysis method captures diverse features such as the criteria and alternatives of appraising a multiple criteria decision-making problem. At the same time, the multiple criteria problem includes a set of decision makers with diverse expertise and preferences. In fact, the literature lists numerous approaches to aid in this problematic task of choosing the best alternative. Nevertheless, in the MCDM field, there is a challenge regarding intangible information which is commonly involved in multiple (...) criteria decision-making problem; hence, it is substantial in order to advance beyond the research related to this field. Thus, the objective of this paper is to present a fused method between multiobjective optimization on the basis of ratio analysis and Pythagorean fuzzy sets for the choice of an alternative. Besides, multiobjective optimization on the basis of ratio analysis is utilized to choose the best alternatives. Finally, two decision-making problems are applied to illustrate the feasibility and practicality of the proposed method. (shrink)

The main aim of this article is to reflect on the impact of biases related to artificial intelligence (AI) systems developed to tackle issues arising from the COVID-19 pandemic, with special focus on those developed for triage and risk prediction. A secondary aim is to review assessment tools that have been developed to prevent biases in AI systems. In addition, we provide a conceptual clarification for some terms related to biases in this particular context. We focus mainly on nonracial biases (...) that may be less considered when addressing biases in AI systems in the existing literature. In the manuscript, we found that the existence of bias in AI systems used for COVID-19 can result in algorithmic justice and that the legal frameworks and strategies developed to prevent the apparition of bias have failed to adequately consider social determinants of health. Finally, we make some recommendations on how to include more diverse professional profiles in order to develop AI systems that increase the epistemic diversity needed to tackle AI biases during the COVID-19 pandemic and beyond. (shrink)

Abstract. The notion of similarity has been studied in many areas of Computer Science; in a general sense, this concept is defined to provide a measure of the semantic equivalence between two pieces of knowledge, expressing how “close” their meaning can be regarded. In this work, we study similarity as a tool useful to improve the representation of arguments, the interpretation of the relations between arguments, and the semantic evaluation associated with the arguments in the argumentative process. In this direction, (...) we present a novel mechanism to determine the similarity between two arguments based on descriptors representing particular aspects associated with these arguments. This mechanism involves a comparison process influenced by the context in which the process develops, where this context provides the relevant aspects that need to be analyzed in the application domain. Then, we use this similarity measure as a quantity to compute the result of attacks and supports in the argumentation process. These valuations, applied to a Bipolar Argumentation Frameworks, allowed us to refine the argument relations, providing the tools to establish a family of new argumentation semantics that considers the similarity between arguments as a crucial part for the argumentation process. (shrink)

The paper analyzes the factors that brand engagement produces in the growth of a brand, studying the values of creating emotional bonds to retain customers and develop consumer cultures. The PACARI brand is taken as a reference, which has international recognition, managing to position Ecuador as the country where the best chocolate in the world originates. The objective is to analyze the impact of PACARI and its connection in ethical consumption, where the brand has generated impact from the word of (...) mouth marketing that it creates from influencers, and the commitment with its interest groups. (shrink)

For more than a century the notion of a pre-established harmony between the mathematical and physical sciences has played an important role not only in the rhetoric of mathematicians and theoretical physicists, but also as a doctrine guiding much of their research. Strongly mathematized branches of physics, such as the vortex theory of atoms popular in Victorian Britain, were not unknown in the nineteenth century, but it was only in the environment of fin-de-siècle Germany that the idea of a pre-established (...) harmony really took off and became part of the mathematicians’ ideology. Important historical figures were in this respect David Hilbert, Hermann Minkowski and, somewhat later, Albert Einstein. Roughly similar ideas can be found also among British theorists, among whom Arthur Eddington, Arthur Milne, and Paul Dirac are singled out. Although largely limited to the period 1870–1940, the paper also considers Max Tegmark’s recent hypothesis of the universe being a one-to-one reflection of mathematical structures. (shrink)

We present a novel argumentation-based method for finding and analyzing communities in social media on the Web, where a community is regarded as a set of supported opinions that might be in conflict. Based on their stance, we identify argumentative coalitions to define them; then, we apply a similarity-based evaluation method over the set of arguments in the coalition to determine the level of cohesion inherent to each community, classifying them appropriately. Introducing conflict points and attacks between coalitions based on (...) argumentative (dis)similarities to model the interaction between communities leads to considering a meta-argumentation framework where the set of coalitions plays the role of the set of arguments and where the attack relation between the coalitions is assigned a particular strength which is inherited from the arguments belonging to the coalition. Various semantics are introduced to consider attacks’ strength to particularize the effect of the new perspective. Finally, we analyze a case study where all the elements of the formal construction of the formalism are exercised. (shrink)

This paper introduces the special issue on Formal Approaches to the Ontological Argument of the Journal of Applied Logics (College Publications). The issue contains the following articles: Formal Approaches to the Ontological Argument, by Ricardo Sousa Silvestre and Jean-Yves Béziau; A Brief Critical Introduction to the Ontological Argument and its Formalization: Anselm, Gaunilo, Descartes, Leibniz and Kant, by Ricardo Sousa Silvestre; A Mechanically Assisted Examination of Begging the Question in Anselm’s Ontological Argument, by John Rushby; A Tractarian Resolution (...) to the Ontological Argument, by Erik Thomsen; On Kant’s Hidden Ambivalence Toward Existential Generalization in his Critique of the Ontological Argument, by Giovanni Mion; The Totality of Predicates and the Possibility of the Most Real Being, by Srećko Kovač; An Even More Leibnizian Version of Gödel’s Ontological Argument, by Kordula Świętorzecka and Marcin Łyczak; A Case Study On Computational Hermeneutics: E. J. Lowe’s Modal Ontological Argument, by David Fuenmayor. (shrink)

Los temas que contiene van desde estudios sobre los contextos culturales español e hispanoamericano en los que le tocó vivir a nuestro filósofo, y trabajos sobre los principales temas filosóficos sobre los que centró su abundante producción escrita.

Physicalism, if it is to be a significant thesis, should differentiate itself from key metaphysical contenders which endorse the existence of platonic entities, emergent properties, Cartesian souls, angels, and God. Physicalism can never be true in worlds where things of these kinds exist. David Papineau, David Spurrett, and Barbara Montero have recently developed and defended two influential conceptions of physicalism. One is derived from a conception of the physical as the non-mentally-and-non-biologically identifiable. The other is derived from a (...) conception of the physical as the non-sui-generis-mental. The paper looks at the resources available to those conceptions, but argues that each is insufficient to yield a conception of physicalism that differentiates it from key anti-physicalist positions. According to these conceptions, if we lived in a world full of things that clearly cannot be physical, we would still live in a physical world. Thus, such conceptions of physicalism are of little theoretical interest. (shrink)

The present paper studies a family of Stoic proofs of the intelligence of the cosmos, i. e. of the thesis that the cosmos is intelligent in the strong sense that it is, as a whole, something that thinks. This family, ‘F2’, goes back to a proof, ‘XP’, found in Philebus 29a9–30 a8 and Xenophon Mem. 1.4.8. F2 infers the intelligence of the cosmos, as XP does, from the general idea that our intelligence proceeds from the cosmos, which is the ultimate (...) cause of why we are intelligent, and the further claim that, since this is so, the cosmos itself must be intelligent. They differ from one another, however, in how they account for. In this paper, I present a new reason for why the accounts are different, that complements those given by David Sedley in a recent and important study of Stoic cosmology. Based on the analogy between intelligence and the four elements, XP puts forward the idea that the intelligence currently present in us is a portion of cosmic intelligence that has separated from it at some point in the past, and that has travelled from the outside cosmos to us. In contrast, the theory used by F2 to explain the generation of human intelligence is grounded not in the notions of separation and locomotion, but in that of transmission of a state. As I argue in some detail, the separation-locomotion model and the transmission model are not only different from each other, but also logically independent from one another: in general terms, neither entails the other. This transmission model used by the Stoics in a proof of the intelligence of the cosmos, I submit, is a major innovation in ancient cosmological and metaphysical thinking. (shrink)

En este artículo realizamos una reconstrucción del Programa original de Hilbert antes del surgimiento de los teoremas limitativos de la tercera década del siglo pasado. Para tal reconstrucción empezaremos por mostrar lo que Torretti llama los primeros titubeos formales de Hilbert, es decir, la defensa por el método axiomático como enfoque fundamentante. Seguidamente, mostraremos como estos titubeos formales se establecen como un verdadero programa de investigación lógico-matemático y como dentro de dicho programa la inquietud por la decidibilidad de los problemas (...) matemáticos y en específico la decidibilidad de la Lógica de primer orden cobra peso. Luego pasamos a analizar como la inquietud por la decibilidad toma lugar dentro del pensamiento filosófico-matemático de Hilbert presentándose como uno de los grandes problemas a los cuales la metamatemática debe encontrar una solución, esto lo hacemos mostrando un contraste con autores, como John von Neumann y Roberto Torretti, quienes de alguna u otra manera no interpretan el problema de la decidibilidad de la Lógica de primer orden como un problema de peso dentro del programa original de Hilbert. Finalmente argumentamos que el resultado meta-teórico de Church puede entenderse como una refutación del optimismo intelectual que permea a todo el programa original de Hilbert. (shrink)

Caspar David Friedrich was the quintessential Romantic figure, portraying the Sublime in his landscape paintings. The Romantic period, particularly in Germany, England, and France, was characterized by the full development of aesthetics as a separate branch of philosophy. The terrible Sublime was contrasted with the more formal elements of Beauty. In this paper, Dr. dela Cruz similarly compares the inarticulable aesthetic sensibility and the more formal method of logical analysis, underscoring her own transition from philosophy to creative writing. (...) She provides a philosophical analysis of what picture theorists call the “visual metaphor” in Friedrich’s key works, in particular “The Wanderer Above a Sea of Fog” and “On the Sailingboat.” Her engagement with these works takes the form of a creative piece—an ekphrastic poem—integrated in a philosophical paper, which is also simultaneously about the aesthetics of that literary form. (shrink)