En este estudio se revisa la situación que enfrentarán las ciudades del mundo en las próximas décadas como consecuencia del calentamiento antropogénico de la atmósfera. Se propone incorporarlas al movimiento de las comunidades de transición y, de tal manera, convertirlas en entidades resilientes al cambio climático.

The “transformation problem” in Marx’s Capital (how to make compatible the labour theory of value from the first book with “prices of production” from the third book) has been one of the main reasons to refute the marxist theory and, at the same time, a privileged matter in order to analyze the method question. In this paper, we try to analyze the sense and foundation of the labobour theory of value discussing with any attempt of reading Marx Capital as the (...) development of a supposed “dialectic method”. Analyzing the manuscripts and drafts that Marx did not finish, we try to defend that, contrary to what Engels thought (because it had been anounced by Marx himself), it is not possible to find in the third book a trace of the so expected “dialectic solution” to the “transformation problem”. That demands, of course, a different interpretation to explain the sense of the “transformation” of value into “production prices”. (shrink)

The assessment of learning in the ethical domain is one of the most complex aspects to attend in the educational context. In recent years, character education has contributed greatly to different social disciplines, such as education or nursing. However, the development of this approach has run up against several obstacles and limitations, as there is little evidence regarding its long-term effectiveness or its evaluation. This essay aims to identify some of the main difficulties to assess learning in the ethical domain, (...) as obstacles and possible constraints to Aristotelian-based character education. Methodology is analytical and of a philosophical-educational nature, based on which an argumentative analysis is constructed from the bibliographical review of the contributions of classical and contemporary authors. Results show the existence of four major problems and ten associated subproblems, both of an external nature linked to the contextual factors of assessment, and of an internal nature that affect the essence of the process itself, which highlight the difficulty of carrying out assessments of an ethical kind. Far from proposing a pessimistic position, we argue a realistic vision that allows educators at different educational levels to be aware of the limits and critical points of evaluation in the ethical domain. (shrink)

Las revoluciones han constituido un fenómeno central en la caracterización de la historia moderna; sus consecuencias se evidencian desde fines del siglo XVIII para las Trece Colonias de Norteamérica y Francia hasta los múltiples ejemplos aportados por el siglo XX. Tal apreciación ha sido sometida a estudios de diversa índole; sin embargo, no todos han sido capaces de explicar de forma ordenada la relación que se implica en sus decursos con la ciencia del derecho. De acuerdo con este criterio, el (...) presente estudio está orientado a caracterizar las manifestaciones y contenidos inherentes a la revolución como forma trascendente de resistencia política. Ello será posible a través de la valoración de sus elementos justificantes y constitutivos de acuerdo con diversos órdenes teóricos y doctrinales, la dimensión de sus alcances para las ciencias política y jurídica y su capacidad de transformación e implicación con el factor de la evolución histórica. (shrink)

In this paper we study the axiomatic system proposed by Bourbaki for the Theory of Sets in the Éléments de Mathématique. We begin by examining the role played by the sign \(\uptau \) in the framework of its formal logical theory and then we show that the system of axioms for set theory is equivalent to Zermelo–Fraenkel system with the axiom of choice but without the axiom of foundation. Moreover, we study Grothendieck’s proposal of adding to Bourbaki’s system the axiom (...) of universes for the purpose of considering the theory of categories. In this regard, we make some historical and epistemological remarks that could explain the conservative attitude of the Group. (shrink)

"Crónica à clef" es fruto de la lectura a Estrella de dos puntas (Ariel, 2021), libro reconocido con el Premio Xavier Villaurrutia, que presenta una disertación basada en la investigación epistolar entre Carlos Fuentes y Octavio Paz. Gracias al seguimiento, Malva Flores propone algunas conclusiones que generarán un debate en la discusión sobre el campo cultural en México.

En este artículo hacemos un estudio analítico de la teoría del razonamiento defectible (o no monótono) atendiendo tanto a cuestiones de orden epistémico como metodológico. El razonamiento defectible es un tipo de razonamiento que está basado sobre la construcción de argumentos no lineales. Esto es, a lo largo de un proceso de razonamiento la introducción de nuevos supuestos en los argumentos puede llegar a retractar las conclusiones inferidas. Además, el razonamiento del sentido común que trabaja con deducciones es bidireccional, en (...) el sentido que no sólo opera desde las premisas a la conclusión (hacia adelante), sino también desde la conclusión a las premisas (hacia atrás). Los sistemas de razonamiento que combinan ambos tipos de razonamiento se dice que son dirigidos a intereses. Que un agente esté interesado en conocer el status de una proposición determinada exige que éste sea capaz de discernir entre razonamiento teórico (razonamiento acerca de qué creencias poseer) y razonamiento práctico (razonamiento acerca de qué acciones llevar a cabo). Una cuestión en la modelización del razonamiento ordinario es establecer una distinción entre teorías de la justificación y teorías de la garantía. Aquellas proposiciones que estén soportadas por algún argumento no derrotado en algún estadio de la computación para una situación epistémica concreta, se dirá que están justificadas, sin estar necesariamente garantizadas. Las proposiciones garantizadas son aquellas que deberían estar justificadas `a largo plazo', en el caso de que el sistema de razonamiento fuera capaz de llevar a cabo todo el razonamiento relevante posible. Sin embargo, veremos que una vez que una proposición resulte estar justificada, es razonable aceptarla provisionalmente y actuar sobre ella. (shrink)

BackgroundMonitoring recovery–stress balance in sport is becoming more relevant to prevent training maladaptation and reach the optimal performance for each athlete. The use of questionnaires that identify the athlete’s recovery–stress state have much acceptance in sports due to reliability and useful, furthermore for its low cost. Identifying possible differences between sport modalities and sex is important to determine specific needs and possible intervention ways to keep a recovery–stress balance. The aim was to analyze the differences in the recovery–stress state and (...) mood states by sex and sport type during the competitive phase in young Mexican athletes. As a secondary objective, the psychometric properties of the Mexican version of the Recovery–Stress Questionnaire for Athletes were analyzed.MethodsA cross-sectional study was carried on with 461 athletes, 17.95 years old, from six sports disciplines. The RESTQ-Sport and Profile of Mood States were applied in a single moment. Differences by sex and sports modality were analyzed. RESTQ-Sport’s confirmatory factor analysis was performed after the stress and recovery theoretical structure of two stress and two recovery dimensions, and last, the concurrent validation with the POMS was carried on.ResultsSignificant differences by sex were found in the General Recovery and Sport Stress dimensions of the RESTQ-Sport as well as Vigor factor of the POMS, being higher for men; furthermore, both the Sport Recovery dimension of RESTQ-Sport and Cholera and the Fatigue and Depression factors from POMS also had differences by sport type, showing a less recovery and high stress for individual sport athletes. Goodness-of-fit indexes of the model for the RESTQ-Sport were acceptable. Pearson’s correlation between questionnaires was moderate.ConclusionThe recovery–stress state shows differences in the function of sex and sport modality. More special attention is suggested for women and individual sport athletes. The higher punctuation for men compared with women in sport stress dimension did not negatively affect the recovery–stress balance for male athletes. Finally, the Mexican context adaptation of the RESTQ-Sport provides a psychometric instrument suitable to assess the recovery–stress balance in Mexican athletes. (shrink)

One of the main challenges in medicine is to guarantee an appropriate drug supply according to the real needs of patients. Closed-loop strategies have been widely used to develop automatic solutions based on feedback variables. However, when the variable of interest cannot be directly measured or there is a lack of knowledge behind the process, it turns into a difficult issue to solve. In this research, a novel algorithm to approach this problem is presented. The main objective of this study (...) is to provide a new general algorithm capable of determining the influence of a certain clinical variable in the decision making process for drug supply and then defining an automatic system able to guide the process considering this information. Thus, this new technique will provide a way to validate a given physiological signal as a feedback variable for drug titration. In addition, the result of the algorithm in terms of fuzzy rules and membership functions will define a fuzzy-based decision system for the drug delivery process. The method proposed is based on a Fuzzy Inference System whose structure is obtained through a decision tree algorithm. A four-step methodology is then developed: data collection, preprocessing, Fuzzy Inference System generation, and the validation of results. To test this methodology, the analgesia control scenario was analysed. Specifically, the viability of the Analgesia Nociception Index as a guiding variable for the analgesic process during surgical interventions was studied. Real data was obtained from fifteen patients undergoing cholecystectomy surgery. (shrink)

Desde hace poco más de 250 años, y como consecuencia de la revolución industrial, la compleja y competitiva humanidad trastoca las condiciones de la biosfera de tal manera que, en nuestros días, por todas partes suenan las alarmas respecto a la destrucción de la vida: el aire y el agua se contaminan, el suelo se cubre de venenos, los océanos de plásticos y ni siquiera los lejanos e inhóspitos polos de la tierra escapan a la degradación. No sólo los científicos (...) se ocupan de reflexionar sobre tales asuntos, también los humanistas lo hacen. Al interior de la filosofía se ha venido configurando un ámbito de reflexión específico: la Ecosofía. En este ensayo revisaremos cuatro de sus versiones. (shrink)

Nowadays, batteries play an important role in a lot of different applications like energy storage, electro-mobility, consumer electronic and so on. All the battery types have a common factor that is their complexity, independently of its nature. Usually, the batteries have an electrochemical nature. Several different test are accomplished to check the batteries performance, and commonly, it is predictable how they work depending of their technology. The present research describes the hybrid intelligent system created to accomplish fault detection over a (...) Lithium Iron Phosphate—LiFePO4 power cell type, commonly used in electro-mobility applications. The approach is based on the cell temperatures behaviour for voltage and current specific values. Taken into account the operating range of a real system based on a LiFePO4 cell, a large set of points of operation have been used to achieve the dataset. The different behaviour zones have been obtained by clustering as a first step. Then, different regression techniques have been used over each cluster. Polynomial regression, artificial neural networks and support vector regression were the combined techniques to develop the hybrid intelligent model proposed. The intelligent system gives very good results over the operating range, detecting all the faults tested during the validation. (shrink)

This paper presents a human-robot closely collaborative solution to cooperatively perform surface treatment tasks such as polishing, grinding, finishing, deburring, etc. The proposed scheme is based on task priority and non-conventional sliding mode control. Furthermore, the proposal includes two force sensors attached to the manipulator end-effector and tool: one sensor is used to properly accomplish the surface treatment task, while the second one is used by the operator to guide the robot tool. The applicability and feasibility of the proposed collaborative (...) solution for robotic surface treatment are substantiated by experimental results using a redundant 7R manipulator: the Sawyer collaborative robot. (shrink)

This paper presents a human-robot closely collaborative solution to cooperatively perform surface treatment tasks such as polishing, grinding, finishing, deburring, etc. The proposed scheme is based on task priority and non-conventional sliding mode control. Furthermore, the proposal includes two force sensors attached to the manipulator end-effector and tool: one sensor is used to properly accomplish the surface treatment task, while the second one is used by the operator to guide the robot tool. The applicability and feasibility of the proposed collaborative (...) solution for robotic surface treatment are substantiated by experimental results using a redundant 7R manipulator: the Sawyer collaborative robot. (shrink)

El objeto de este artículo es doble. Por una parte, examina el uso que Vives hace de la lengua y del lenguaje, y, por otra parte, indica sus aportaciones al campo de la traducción e interpretación. La diversidad temática presente en su obra hace que su persona sea un punto de referencia para diferentes campos científicos, entre ellos la Filología. Para Vives, tanto el acercamiento filológico, como el aprendizaje de la lengua no sólo deben tener en cuenta la lengua desde (...) un punto teórico, sino también sociocultural. Su especial interés por las lenguas le llevó a realizar un considerable esfuerzo filológico haciendo lecturas e introducciones de varios textos clásicos latinos y también griegos, y transmitiendo su opinión acerca de la forma de realizar versiones o interpretaciones. (shrink)

En este artículo analizamos la noción de objeto matemático que tenían en la antigüedad clásica griega Platón y Aristóteles. En particular tratamos de probar que es erróneo interpretar la doble connotación que dicha noción exhibe en el pensamiento de Platón como expresión de una escisión ontológica que define dos tipos distintos de ‘objetos matemáticos’: los sensibles y los inteligibles. En el artículo defendemos que tal escisión es solo aparente puesto que en realidad lo que Platón introduce es una distinción entre (...) dos maneras distintas de relacionarse con los objetos matemáticos: la de los Filósofos y la de los no Filósofos. Mostramos además que nuestra interpretación permite aclarar las ambigüedades en torno al concepto μоνάς, y disolver la tensión entre la existencia de dos disciplinas aparentemente distintas dedicadas al estudio de los objetos matemáticos discretos, la λоγιστική y la ἀριθμητική. (shrink)

Este volumen trata de temas que en el mundo se debaten desde diversas perspectivas: la cuestion del embrion, el asesoramiento genetico y diagnostico prenatal, el aborto, la clonacion y celulas troncales, trasplante de organos, investigacion medica en seres humanos, eutanasia, neuroetica, eugenesia, etc. Ademas, el primer capitulo nos introduce al surgimiento del concepto de etica, y de ahi al nacimiento de la bioetica. Los autores exponen con seriedad e imparcialidad los puntos de vista contrarios a los que ellos mismos sostienen, (...) lo cual confiere a sus textos la probidad intelectual indispensable para una obra de esta naturaleza. (shrink)

Artificial intelligence in all its developments is advancing faster than the capacity of institutions and organizations to offer legal, but also deontological responses: assuming the ethical implications of the new digital scenarios where technology learns from human routines to personalize content is fundamental from the academic, politicy and business spheres. This paper offers an interpretative framework of the evolution of smart speakers and voice assistants as tools for information singularization in parallel to the study of the European framework for the (...) creation of an ethics of ai. The results show an effort by institutions to respond to an unstoppable progress and demonstrate that ai cannot be addressed by legal regulation alone but is above all a matter of ethical preference. (shrink)

We seek to add to the Corporate Social Responsibility (CSR) and Sustainable Development (SD) literature through the empirical study of Latin American firm membership in the United Nations Global Compact (GC) and Global Report Initiative (GRI). Within an institutional-based framework, we explore through three filters – commercial, state-signaling, and distinguished peers – the impact of normative and mimetic pressures associated with GC/gri membership. Our sample includes 207 public firms from six Latin American countries (Argentina, Brazil, Chile, Colombia, Mexico, and Peru). (...) Our results suggest Latin American firms from countries with a greater European influence (normative pressure) are twice as likely to be enrolled in the GC/gri. Additionally, we find that Latin American firms listed on the NYSE (mimetic pressure) are also twice as likely to sign up under the GC/gri. Hence, the normative and mimetic pillars of institutional theory are found to be significant factors for Latin American firms adopting sustainability initiatives. (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)

To encourage corporations to contribute positively to the environment in which they operate, voluntary self-regulatory codes (SRC) have been enacted and refined over the past 15 years. Two of the most prominent are the United Nations Global Compact and the Global Reporting Initiative. In this paper, we explore the impact of different stakeholders' pressures on the selection of strategic choices to join SRCs. Our results show that corporations react differently to different sets of stakeholder pressures and that the SRC selection (...) depends on the type and intensiveness of the stakeholder pressures as well as the resources at hand to respond to those pressures. Our contribution offers a more specific and finely variegated analysis of firmstakeholder interactions. (shrink)

Ante una ciencia mal-tratada desde su interior, un ojo enajenado y confundido en su visión, un ser humano cansado y desconfiado de la misma explicación, un mundo necesitado de comprensión y cuidado, ante unos cuantos insistentes de vivir en unos tiempos y espacios fragmentados, aparece la necesidad de escuchar de nuevo a lo propio, a lo primero y fundante como fuerza de transformación. Así, las siguientes letras reconocen un camino fenomenológico y contemplativo en la Gran Madre, la Hytcha Guaia, la (...) Pachamama, el primer gran útero, matriz sagrada que alimenta y nutre lo humano en toda su manifestación.Para la psicología, saber de psyque, de alma, su tarea también está en mirarse, recuperarse y a través de un logos trascendente, integrativo, volver a la sensible y sentida escucha de lo divino como curación, por ello su afirmación a lo mágico, chamánico, potente y sagrado del conocimiento telúrico (de tierra), a la medicina que en ella habita y su sanación. La propuesta es el gran camino de andar la tierra, de sentir, escuchar y estar en conciencia de raíz, un camino de cuidado que constata en cada ritual y experiencia la fuerza espiritual de nuestro saber ancestral indígena como primera y perenne ciencia. (shrink)

Our object in this paper is to study the antecedents, contents, implications, and impact of a not well-known or appreciated paper by EHRENFEST in 1911 on the essential nature of the different quantum hypotheses in radiation theory. After a careful analysis of EHRENFEST’s notebooks, correspondence, and publications, we conclude that the essential points of EHRENFEST’s paper were not perceived to a large extent, and hence that its implications were not considered thoroughly. Specifically, we show that EHRENFEST contributed significantly to the (...) clarifications of the differences between PLANCK’s and EINSTEIN’s respective quantum hypotheses, as well as to those of the concepts ‘‘discontinuity,’’ ‘‘quantization,’’ and ‘‘corpuscularity.’’. (shrink)

El artículo muestra una estrategia metodológica para garantizar la dirección del proceso educativo para el desarrollo de la habilidad intelectual modelación en los estudiantes; devela sus principales fundamentos epistémicos, sus etapas y acciones esenciales. Para ello se aplicaron métodos científicos de investigación. La constatación de los resultados brinda evidencias positivas acerca de su pertinencia, al considerar el carácter coparticipativo y coprotagónico que adquieren las influencias educativas en el contexto institucional en la dirección de un proceso educativo único. The article shows (...) a methodological strategy to ensure the teaching process direction in order develop intellectual skill modeling in students; It reveals its main epistemic foundations, its stages and essential actions. That is the reason for which different research scientific methods were applied. Verification of results provides positive evidence of its pertinence when considering the collaborative nature of the educational influences within the institutional context in the direction of a unique educational process. (shrink)

El presente texto examina la relación entre las valoraciones de la normalización filosófica en Colombia y el intento particular del filósofo Germán Marquínez Argote de realizar una historia de la filosofía colonial en clave latinoamericanista. Ello, para dar algunas luces sobre la continuidad de la filosofía latinoamericana en Colombia respecto del proceso local de normalización filosófica, siguiendo así algunas de las conclusiones de la historia de las prácticas de escritura. Esta continuidad no debe entenderse como una suerte de secuencialidad histórica, (...) de modo que la filosofía latinoamericana fuera la sucesora de la filosofía "normalizada". Por el contrario, se ha de entender como una reincidencia en los modos de valorar, que aparentemente estarían en contraposición según la comprensión de la primera como filosofía regionalista y de la segunda como universalista. En este sentido, el artículo comporta tres momentos. De manera introductoria se contextualiza el escenario filosófico local y latinoamericano, mostrando la presunta oposición entre latinoamericanistas y normalizadores. Luego, se expone cómo Marquínez Argote articula el proyecto latinoamericanista en Colombia y cómo pretendería estar valorativamente contrapuesto a la normalización. Finalmente, se evidencia, mediante un análisis narrativo de los textos que Marquínez Argote realiza sobre la filosofía en la Colonia, cómo reitera los valores de los normalizadores. Esto permite concluir la tesis central del artículo: la continuidad valorativa entre latinoamericanistas y normalizadores, en contraste con su frecuentemente asumida contradicción. (shrink)

We analyze the evolution of EHRENFEST's thought since he proved the necessity of quanta in 1911 until the formulation of his adiabatic hypothesis in 1914. We argue that his research contributed significantly to the solution of critical problems in quantum physics and led to a rigorous definition of the range of validity of BOLTZMANN's principle.

ABSTRACT This article maintains that in Stoicism physics depends epistemologically on ethics because the theological theses (which are part of stoic physics) about that the gods are beneficial and care about human beings depend on knowledge of the ethical realm of philosophy to be sustained or established forcefully. It is possible appreciate that dependence in the response Stoics would have given to the criticism of other philosophical schools to some of the Stoic theological theses. This is not a minor issue, (...) because the question about whether there are foundational relationships between ethics and physics or not depends on it. The proposal in this article intends to support the negative answer to this question under discussion in contemporary studies on Stoicism. (shrink)