The logic BN4 was defined by R.T. Brady in 1982. It can be considered as the 4-valued logic of the relevant conditional. E4 is a variant of BN4 that can be considered as the 4-valued logic of entailment. The aim of this paper is to define reduced general Routley-Meyer semantics for BN4 and E4. It is proved that BN4 and E4 are strongly sound and complete w.r.t. their respective semantics.

The logic BN4 can be considered as the 4-valued logic of the relevant conditional and the logic E4, as the 4-valued logic of entailment. The aim of this paper is to endow E4 with a 2-set-up Routley-Meyer semantics. It is proved that E4 is strongly sound and complete w.r.t. this semantics.

In lieu of an abstract, here is a brief excerpt of the content:Gordon Kaufman InterviewGordon Kaufman, emeritus professor of theology at Harvard Divinity School, has been a member of the Cobb-Abe Buddhist-Christian dialogue since its inception in 1987. As he mentions below, that experience has profoundly affected his work as a theologian and his conviction that theology is an activity of “the imaginative construction of a comprehensive and coherent picture of humanity in the world under God.” This perspective has characterized (...) his work from Systematic Theology (1968) through his more recent In Face of Mystery: A Constructive Theology (1993). Rita Gross and Terry Muck, coeditors of Buddhist-Christian Studies, explored with Gordon the important role Buddhism has played in his theological construction.Buddhist-Christian Studies: Does religious pluralism present Christian theologians with a unique task?Gordon Kaufman: Yes. Through most of Christian history theologians have argued that God revealed Godself to the Christian church in a way unlike any other religious group. Christians had the truth about human beings, their nature, their deepest problems, and solutions to those problems. Now, especially since World War II, a much greater consciousness of the significance of other religious traditions has grown among Christians. The unique challenge to Christian theologians is: What do we as theologians say to believers about what to do with this old tradition of uniqueness and infallible truth?Are Buddhist ‘theologians’ faced with a similar challenge in their communities?Yes.Are there specific features of either Christian theology or Buddhist theology that make either one of these religions more able or less able to step up to the challenge? What are the strengths and weaknesses of these two religions when it comes to the issues religious pluralism raises?I don’t want to speak for the Buddhist tradition in this respect. But I will say that both traditions have adapted to many different cultures around the world and there is a kind of flexibility in these traditions that gives hope. Christian monotheism, for example, is sometimes seen as contributing to exclusivism. But monotheism can be seen as including the notion of one source and ordering principle working in all of life, and that means we are all equal within the world and all related within the world to each other. And that leads to a central teaching of the Christian message: what God requires of us is that we be reconciled with those brothers and sisters from whom we are alienated. The simple Christian demand that we love not only our [End Page 43] neighbors but also our enemies now becomes a very powerful mandate if connected up with that one high monotheistic principle.Is there a certain commensurability between the way Buddhist and Christian theologians do their work?Let’s start by defining the terms. I don’t use the phrase ‘Buddhist theology’ but ‘Buddhist reflective thinking.’ This is less loaded than ‘theology,’ the study of God, but I have no objection if others want to call it Buddhist theology. Now, regarding ‘commensurability.’ I don’t regard myself as a good enough scholar of the history of religion to use that phrase. I’m a little suspicious of it because I am deeply impressed with the difference in lifestyles and commitments and value orientations that different symbols in various religious traditions promote. Thus I don’t want to assume there is a basic commensurability. The basic requirement for the Christian theologian is that we be open to all human beings. Then we’ll see what commensurability there is.So it’s not so much a cognitive category as an attitude or an approach—a common, human desire?Not necessarily a common human desire. I suspect there are strong motivations in all human beings, at least in many, not to be ‘open’ to all other persons. Many simply identify with the groups they are in and are not concerned much about others. I do say that there is a strong Christian imperative to enter into loving relationship with strangers, and whether that is true or not on the other side is for me to find out.How important is it to find out?Very important. It may have been that in earlier times we could continue to live in... (shrink)

Todas as dimensões do ensino de geografia contribuem para a construção de referenciais de leitura do mundo, conferem poder a indivíduos e grupos em suas interações e relações, do mesmo modo que os posiciona, tanto do ponto de vista geográfico quanto social. A Geografia tem, portanto, na perspectiva de Santos (2009), relação direta com a constituição da ideia de raça e com a instauração de formas de relações raciais. Neste artigo tem-se como objetivo identificar como as dimensões das colonialidades, ou (...) seja, a colonialidade o poder, do saber e do ser se reproduzem do ensino de Geografia na interface com as relações étnico-raciais e, ao mesmo tempo, analisar como as epistemes decoloniais e a perspectiva de educação antirracista, em conformidade com a lei 10.639/2003, interpelam os processos de racialização e produção do conhecimento acerca das relações étnico-raciais no ensino de Geografia. (shrink)

The concept of polarity is pervasive in natural language. It relates syntax, semantics and pragmatics narrowly, Semantics: an international handbook of natural language meaning, De Gruyter Mouton, Berlin, 2011; Israel in The grammar of polarity: pragmatics, sensitivity, and the logic of scales, Cambridge studies in linguistics, Cambridge University Press, Cambridge, 2014), it refers to items of many syntactic categories such as nouns, verbs and adverbs. Neutral polarity items appear in affirmative and negative sentences, negative polarity items cannot appear in affirmative (...) sentences, and positive polarity items cannot appear in negative sentences. A way of reasoning in Natural Language is through Natural Logic. This logic is based on the concept of polarity in order to make the meaning of a sentence weaker o stronger without changing its truth value. There exist many proposals to compute polarity in the Natural Logic context, the most widely known are the ones by: van Benthem, Sánchez-Valencia, Dowty, and van Eijck, 6th international Tbilisi symposium on logic, language, and computation, Batumi, Georgia, Springer, 2007). If Natural Logic is going to be used, as an inferential mechanism between text fragments, in Natural Language Processing applications such as text summarization, question answering, and information extraction, it is a priority to know what the existing relationship among the aforementioned algorithms is; for example, to implement the most general. We show in this paper the equivalence among the analyzed algorithms, filling a gap in Natural Logic research, particularly in computing polarity, and the soundness of their algorithms. (shrink)

When the conquerors arrived in the Valley of Mexico, they were amazed at the creations of the culture inherited from the Toltec tradition. With the prurpose of acknowledging this culture, this paper points out that words such as truth, thinking, and doubt have a very different connotation in modern European philosophy, to the Anahuac culture, which flourished in the Valley of Mexico between the 9th and 16th centuries. This writing presents a comparison of the process to obtain true knowledge according (...) to the rationality of the Nahua world of the 16th century and three authors of European modernity: Descartes, Kant and Hegel. Modernity is found to present a dominant and egocentric subject with self-referential thinking. In the Nahua culture the ideal is the man with a "heart of stone" and a "wise face" who seeks what is true, what has roots, and expresses it through poetry, “the flower and the song”. (shrink)

Due to the importance of the theory of values, elaborated by Max Scheler, this article aims to describe the essence and originality of the moral foundation, showing the absolute nature inherent to it, to erect an ethics of absolute moral values. This done, we will find, in fact, axiological foundations capable of showing the principles that permeate and make the basis of people's ethical and moral life full of value and meaning, within the responsive and responsible causality of their actions (...) and decisions that emanate from this human capacity and, that is latent in its essence. (shrink)

El objetivo de este trabajo es analizar la salvación laica formulada por el Dios ficticio del relato “El silencio de Dios” de Juan José Arreola. Primero, se establece un recorrido por las aproximaciones críticas hechas sobre el texto arreolino. Después, se muestra mediante ejemplos la tensión existencial-religiosa que Arreola efectivamente vivenció y se identifica la presencia de esta condición en su narrativa, especialmente en el relato aquí analizado. Por último, se analiza y se intenta describir la naturaleza de la salvación (...) laica implícita en la respuesta de Dios al protagonista del relato. (shrink)

Este artículo es una aproximación a la estética moderna desde una lectura comentada del capítulo sexto titulado “Los problemas fundamentales de Estética” de la obra “Filosofía de la Ilustración” del filósofo alemán Ernst Cassirer. A partir de un recorrido continuo de los seis temas principales de la estética moderna se quiere realizar el rastreo de los temas básicos que en este capítulo son más reiterativos tales como belleza, arte, ilustración, intuición.

This monographic section contains the three papers delivered by Philip Kitcher as Raimundus Lullius Lectures during the VII Conference of the Spanish Society of Logic, Methodology, and Philosophy of Science, that took place in Santiago de Compostela (July 18th-20th, 2012). It also includes three of the contributions presented to the Symposium on Kitcher’s work in the same Conference.

This monographic section contains the three papers delivered by Philip Kitcher as Raimundus Lullius Lectures during the VII Conference of the Spanish Society of Logic, Methodology, and Philosophy of Science, that took place in Santiago de Compostela (July 18th-20th, 2012). It also includes three of the contributions presented to the Symposium on Kitcher’s work in the same Conference.

Se quiere presentar la figura de Pedro Abelardo, desde el concepto de “intelectual total”, por ello atrevernos a proponer una lectura de “Historia Calamitatum” basada en los estudios de Sociología de la Literatura, de Pierre Bourdieu y Jacques Dubois es una tarea un tanto compleja. Para comprender la propuesta que presentamos: Abelardo: El intelectual del siglo XII, es necesario tener en cuenta que dicha hipótesis esconde tres cuestiones fundamentales. La primera es acerca del concepto de Intelectual Total; la segunda, se (...) refiere a la trayectoria intelectual de Pedro Abelardo basándonos en los trabajos sobre postura literaria del Jêrome Meizoz, y la tercera se basa en una comparación, un poco más atrevida, entre las condiciones históricas, del siglo XII y la de finales del siglo XIX, en París. (shrink)

RESUMEN: La libertad de expresión es un derecho aún pendiente por garantizar por parte del Estado mexicano si éste se considera comprometido con el resguardo de los derechos humanos. Prueba de lo anterior, son las numerosas violaciones de sus derechos a periodistas y personas defensoras de derechos humanos, lo que se traduce en un Estado en el que ejercer la libertad de expresión, se puede estar firmando una sentencia de muerte. ABSTRACT: Freedom of expression is a still pending right to (...) be guaranteed by the Mexican State if he considers itself committed with the safeguarding human rights. Proof of the previous text, are the numerous violations to journalist rights and human right defenders, which it translates into a state in which to exercise freedom of expression, could be a death sentence.PALABRAS CLAVE: libertad de expresión, derechos humanos, estado constitucional, México.KEYWORDS: freedom of expression, human rights, constitutional state, Mexico. (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)

Apresentação do Dossiê "Relações Étnico-raciais, Branquitude e Decolonialidade na Educação".

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)

Background No studies have been conducted in Mexico to ascertain what ethical problems doctors working at hospitals deal with. This article aims to describe the ethical conflicts most commonly identified by Mexican internists and the importance they attribute to each of these conflicts. Methods Voluntary survey to the members of the Internal Medicine Association of Mexico. Results Responses were submitted by 347 internists. Half of those face ethical conflicts almost always or frequently. The most commonplace and relevant conflicts are those (...) resulting from the clinical relationship (communication, confidentiality, informed consent, assessment of mental capacity, decisions involving incapacitated patients, and conflicts with family members), and secondly those problems related with the end of life (palliative care, withholding or withdrawing treatment, and “No CPR orders”). To resolve conflicts they seek support through protocols, Institutional Ethics Committees (IECs), and consultations with colleagues and, occasionally, with bioethics experts. Protocols and IECs are the tools most in demand among them. Conclusions 1) the most frequent and relevant conflicts are those caused by the clinical relationship, above all those due to doctor–patient communication, and secondly those due to problems which arise at the end of life; 2) though nearly all of them have doubts about how to resolve conflicts, the vast majority are satisfied with the way in which they do so; 3) to deal with conflicts, they seek support mainly in protocols, IECs, and consultation with colleagues; and 4) in order to resolve them better, what they most demand are protocols and IECs, but also bioethics consultants. (shrink)

Obesity is characterized by the accumulation of an excessive amount of fat mass in the adipose tissue, subcutaneous, or inside certain organs. The risk does not lie so much in the amount of fat accumulated as in its distribution. Abdominal obesity is an important risk factor for cardiovascular diseases, diabetes, and cancer, having an important role in the so-called metabolic syndrome. Therefore, it is necessary to prevent, detect, and appropriately treat obesity. The diagnosis is based on anthropometric indices that have (...) been associated with adiposity and its distribution. Indices themselves, or a combination of some of them, conform to a big picture with different values to establish risk. Anthropometric indices can be used for risk identification, intervention, or impact evaluation on nutritional status or health; therefore, they will be called anthropometric health indicators. We have found 17 AHIs that can be obtained or estimated from 3D human shapes, being a noninvasive alternative compared to X-ray-based systems, and more accessible than high-cost equipment. A literature review has been conducted to analyze the following information for each indicator: definition; main calculation or obtaining methods used; health aspects associated with the indicator ; criteria to classify the population by means of percentiles or cutoff points, and based on variables such as sex, age, ethnicity, or geographic area, and limitations. (shrink)

Paul Ricoeur realizó su primera incursión sobre la temática del mal en su primer periodo, conocido como filosofía de la voluntad, que comprende especialmente los libros "Lo voluntario y lo involuntario", "El hombre lábil" y "La simbólica del mal!. Este estudio pretende presentar las claves internas a partir de las cuales Ricoeur realiza su investigación, analizando los conceptos fundamentales sobre los que gira y su posterior desarrollo. También busca incidir en los presupuestos antropológicos de los que parte, para después realizar (...) análisis de las consecuencias éticas que tienen dichos presupuestos. En este sentido se ha prestado una especial atención a la vinculación existente de la investigación de Ricoeur con la teoría del conocimiento kantiana y con la filosofía hegeliana.. (shrink)

Psychologists have demonstrated the value of diversity – particularly diversity of viewpoints – for enhancing creativity, discovery, and problem solving. But one key type of viewpoint diversity is lacking in academic psychology in general and social psychology in particular: political diversity. This article reviews the available evidence and finds support for four claims: Academic psychology once had considerable political diversity, but has lost nearly all of it in the last 50 years. This lack of political diversity can undermine the validity (...) of social psychological science via mechanisms such as the embedding of liberal values into research questions and methods, steering researchers away from important but politically unpalatable research topics, and producing conclusions that mischaracterize liberals and conservatives alike. Increased political diversity would improve social psychological science by reducing the impact of bias mechanisms such as confirmation bias, and by empowering dissenting minorities to improve the quality of the majority's thinking. The underrepresentation of non-liberals in social psychology is most likely due to a combination of self-selection, hostile climate, and discrimination. We close with recommendations for increasing political diversity in social psychology. (shrink)

The SRL vs. ERL theory has shown that the combination of levels of student self-regulation and regulation from the teaching context produces linear effects on achievement emotions and coping strategies. However, a similar effect on stress factors and symptoms of university students has not yet been demonstrated. The aim of this study was to test this prediction. It was hypothesized that the level of student self-regulation (low/medium/high), in interaction with the level of external regulation from teaching (low/medium/high), would also produce (...) a linear effect on stress factors and symptoms of university students. A total of 527 undergraduate students completed validated questionnaires about self-regulation, regulatory teaching, stress factors and symptoms. Using an ex post facto design by selection, ANOVAs and MANOVAs (3 x 3; 5 x 1; 5 x 2) were carried out. The results confirmed that the level of self-regulation and the level of regulatory teaching jointly determined the level of stress factors and symptoms of university students. Once again, a five-level heuristic of possible combinations was configured to jointly determined university students’ level of academic stress. We concluded that the combination of different levels of student regulation levels and regulation from teaching process jointly determines university students’ level of academic stress. The implications for university students’ emotional health, stress prevention and well-being are established. (shrink)

The aim of this research was to establish linear relations (association and prediction) and inferential relations between three constructs at different levels of psychological research –executive dysfunction(microanalysis),self-regulation(molecular level), andself-vs.external regulation(molar level), in the prediction of emotion regulation difficulties. We hypothesized that personal and contextual regulatory factors would be negatively related to levels of executive dysfunction and emotion regulation difficulties; by way of complement, non-regulatory and dysregulatory personal, and contextual factors would be positively related to these same difficulties. To establish relationships, (...) we used a retrospective,ex postfacto design, where 298 university students voluntarily participated by completing standardized self-reports. Linear and structural correlational, predictive analyses were performed, as well as inferential analyses. Results were consistent and validated the proposed hypotheses, for both association and prediction. The most important result refers to the discriminant value of the five-level combination heuristic for predicting Executive Function and External (contextual) Dys-Regulation. In conclusion: (1) both personal and contextual regulation factors must be analyzed in order to better understand the variation in executive functions and emotion regulation difficulties; (2) it is important to continue connecting the different levels of the constructs referring to self-regulation, given their complementary role in the behavioral analysis of regulation difficulties. (shrink)