In this article, we offer a detailed study of two important episodes in the early history of high-energy physics, namely the development of the Chew and the Nambu-Jona-Lasinio models. Our study reveals that both models resulted from the combination of an old Hamiltonian, which had been introduced by earlier researchers, and two new approximation methods developed by Chew and by Nambu and Jona-Lasinio. These new approximation methods, furthermore, were the key component behind the models’ success. We take this historical investigation (...) to support two philosophical theses about the manner in which scientific modelling operates in high-energy physics. Both of these theses run counter to a view that is commonly accepted among philosophers of science: the view that all approximations can be embedded within an equivalent idealized system, and that whatever role the former might play in scientific modelling is therefore parasitic on the much more substantial work performed by the latter. Our first thesis, which we call “Distinctness,” states that approximation methods constitute an independent category of theoretical output from idealized systems. We thus believe that approximations and idealized systems constitute two independent types of objects, both of which are essential to the practice of modelling. Our second, more radical thesis is called “Content Determination.” Our claim here is that approximation methods can in fact be essential to assigning determinate physical content to the idealized systems with which they jointly operate. As we show, this is due to the fact that quantum field theory allows for a very thin characterization of idealized systems only, making the use of approximations necessary to supply additional content. We conclude the paper with a few reflections about the manner in which our two theses can be used to articulate David Kaiser’s views on the “vanishing of scientific theory” in physics after WWII. (shrink)

In this article, I use a number of remarks made by Eugene Wigner to defend the claim that the nature of the connection between symmetries and conservation laws is different in quantum and in classical mechanics. In particular, I provide a list of three differences that obtain between the Hilbert space formulation of quantum mechanics and the Lagrangian formulation of classical mechanics. I also show that these differences are due to the fact that conservation laws are not the only consequence (...) that symmetries have in quantum mechanics and to the fact that, in classical mechanics, the connection between symmetries and conservation laws does not always obtain. (shrink)

El objetivo de esta contribución es detallar el proceso para realizar un estudio sobre la población de un municipio que permita la elaboración de un diagnóstico sociológico. Para ello, se identificarán variables demográficas, económicas, sociales y de participación pública. El proceso permite alcanzar la información mínima y necesaria para el desarrollo de la primera fase de un proyecto enfocado hacia la planificación de políticas públicas: la fase de diagnóstico sociológico. El estudio de dichos elementos estructurales permite obtener resultados detallados de (...) la población y confeccionar las tesis fundamentales sobre las necesidades y problemáticas sociales que se presentan. (shrink)

8 March, now known as International Women’s Day, is a day for feminist claims where demonstrations are organized in over 150 countries, with the participation of millions of women all around the world. These demonstrations can be viewed as collective rituals and thus focus attention on the processes that facilitate different psychosocial effects. This work aims to explore the mechanisms involved in participation in the demonstrations of 8 March 2020, collective and ritualized feminist actions, and their correlates associated with personal (...) well-being and collective well-being, collective efficacy and collective growth, and behavioral intention to support the fight for women’s rights. To this end, a cross-cultural study was conducted with the participation of 2,854 people from countries in Latin America and Europe, with a retrospective correlational cross-sectional design and a convenience sample. Participants were divided between demonstration participants and non-demonstrators or followers who monitored participants through the media and social networks. Compared with non-demonstrators and with males, female and non-binary gender respondents had greater scores in mechanisms and criterion variables. Further random-effects model meta-analyses revealed that the perceived emotional synchrony was consistently associated with more proximal mechanisms, as well as with criterion variables. Finally, sequential moderation analyses showed that proposed mechanisms successfully mediated the effects of participation on every criterion variable. These results indicate that participation in 8M marches and demonstrations can be analyzed through the literature on collective rituals. As such, collective participation implies positive outcomes both individually and collectively, which are further reinforced through key psychological mechanisms, in line with a Durkheimian approach to collective rituals. (shrink)

Este artículo analiza las relaciones entre el discurso ficcional y el discurso factual en las narrativas hispanoamericanas del siglo xix. En el análisis se considera que ambos discursos establecen una estrecha relación al interior de los textos que se han visto como parte de la literatura de ficción, así como en aquellos que se han clasificado como ensayísticos. Desde ahí se abre la posibilidad de analizar en términos narrativos obras que históricamente se han ubicado en un entre-medio de la crítica (...) historiográfica y la crítica literaria. El análisis propuesto considera el estudio de dos textos: El Periquillo Sarniento, de José Joaquín Fernández de Lizardi, y Mariluán, de Alberto Blest Gana. (shrink)

Tanto la teoría de la elección racional como diversas versiones de estructuralismo adoptan posiciones deterministas en el estudio de la sociedad de consumo. Como consecuencia, explican la relación entre identidad y consumo en términos de racionalidad abstracta o de estructuras de dominación, que niegan protagonismo a las personas concretas en los procesos de construcción identitaria. El realismo crítico relacional aporta una perspectiva de observación más atenta al papel de las personas y a su relación con su contexto sociocultural.

This article studies natural food packaging as enabling artifacts of the traditional material culture of Antioquia in Colombia. For this purpose, we consider artifacts as objective nodes that combine design and use intentions, functions, materials, histories, artifactual lineages, and cooperative relationships that stabilize ritualized practices of a human group. We take the example of natural packaging as artifacts that enablers and stabilizers of traditional cooking and food preparation practices. Natural packaging materials are here assumed to be leaves having some favorable (...) property to contain a food product. After providing a theoretical reflection, we analyze the data collected from fieldwork we conducted in two towns in Antioquia, Colombia (Santa Fe de Antioquia and Amagá), as well as from an interview with an expert in the field. Finally, we show that it is possible to postulate an analysis under a relational ontological description of a traditional practice with conceptual categories of the philosophy of technology. (shrink)

El presente artículo es producto de una investigación multidisciplinaria e interinstitucional, fruto de la alianza entre la Universidad de San Buenaventura Medellín y el Centro de Familia VID-Obra de la Congregación Mariana de Medellín. Surge de una inquietud respecto a la manera en que se aborda la realidad institucional de las madres cabeza de familia, tanto en el ámbito político como empresarial. Para estudiar esta realidad, se partió de un modelo de investigación cualitativo, en donde se hizo una aproximación a (...) la población a partir de un cuestionario que permitiera identificar los roles y percepciones frente al ejercicio de la maternidad y la jefatura femenina, específicamente, cuando se trata de madres trabajadoras. Los resultados arrojados por la investigación permiten obtener una mirada psicosocial de la forma en que se ejerce el rol de madre y de figura de articulación familiar. (shrink)

Se propone una lectura de los textos del filósofo chileno Carlos Ruiz Schneider que presta atención a las citas que contiene y asume que éstas exceden su uso ilustrativo y autorizador, para funcionar como modo de expresión estético-político de un pensar filosófico comprometido con una democracia radical. Para ello se proyectan y reformulan categorías de análisis de crítica cultural y artística extraídas del trabajo de Nelly Richards (complementadas con aportes de la filosofía contemporáneas: Heidegger, Derrida, Foucault y Butler), pertinentes (...) para configurar lo que podría denominarse un ‘estilo epocal’ en el pensamiento crítico chileno de fines del siglo XX. A partir de esta lectura, se abre una reflexión más general sobre la posibilidad de la democracia en la indecible y, por tanto, secreta complicidad pensante desencadenada por las enunciaciones. _Palabras claves:_ Filosofía – Democracia – Cita – Obscenidad – Estética. (shrink)

La manifestación de Jesús tiene su punto culminante en el último día de la fiesta de las Tiendas, en el templo de Jerusalén (Jn 7,38-39). Jesús se proclama poseedor y dador del Espíritu. De la comunión con Cristo emerge la potencia del amor divino, el Espíritu, en el creyente. Cristo resucitado, el Espíritu, la libertad, están en relación de mutua implicación, y constituyen un contexto existencial unitario en la persona que los acoge, según san Pablo. Es preciso tomar conciencia (...) del Espíritu presente en nuestra interioridad. Religiosas/os han encarnado la fertilidad del Espíritu y la ilustran para nuestro tiempo. Para entender la vitalidad, la acción del Espíritu que reciben los creyentes debemos mirar a María. (shrink)

Nowadays there is a growing interest in business ethics, both in academia and professionally. However, moral lapses continue to happen in business activities, leading academicians and professionals to rethink what is being done and reinventing new strategies to successfully manage ethics in business organisations. Thus, whereas efforts to promote ethics are basically oriented to using and developing explicit, written formal mechanisms, the literature suggests that other instruments are also useful and necessary to achieve this. Thus, studying the role of the (...) Human Resource Management (hereafter, HRM) in promoting ethics is an emerging research topic due to the heavy influence that HRM practices are thought to have on employees. This paper is aimed at developing a thorough analysis of HRM's role in promoting ethics, and specifically at focusing on one of its practices, training. As an illustrative example of the utility of this practice, an empirical study was conducted on a range of Spanish banking companies in which an impact was found on the employees' ethical behaviour when ethics training was being provided inside the organisation. Finally, the practical implications of these findings and directions for future research are presented. (shrink)

Since time immemorial, the phenomenon of leadership and its understanding has attracted the attention of the business world because of its important role in human groups. Nevertheless, for years efforts to understand this concept have only been centred on people in leadership roles, thus overlooking an important aspect in its understanding: the necessary moral dimension which is implicit in the relationship between leader and follower. As an illustrative example of the importance of considering good morality in leadership, an empirical study (...) is conducted in which a good performance of the "leader-follower" relationship is reflected when individuals perceive ethical leadership in higher hierarchical managerial levels. To be precise, findings of this study demonstrate that follower job response is improved through an ethics trickle-down partial effect from the Top Manager to the immediate supervisor, and also reveal both key aspects and managerial level on which the practice of ethical leadership should rest upon to have a stronger effect on the follower positive job response. Practical implications of these findings and directions for future research are finally presented. (shrink)

This article discusses some of the claims of the earlier and later versions of the Contemporary Theory of Metaphor (CTM) and addresses some of the criticism that has been leveled against it. It is argued that much of this criticism arises from common misconceptions as to the real claims made by the theory. However, CTM is still in need of further exploration and empirical support. In this connection, we identify some areas where research is still needed and supply our own (...) developments. We argue for a more complex classification of metaphor types, which takes into account various complementary taxonomic perspectives, including the nature of source and target and the genericity and complexity of the metaphoric operation. We also explore metaphor in relation to cognitive prominence and conceptual interaction issues. Finally, we deal with the problem of constraints on metaphor and make a proposal for three complementary kinds of constraint. (shrink)

The COVID-19 pandemic has generated an imbalance between the clinical needs of the population and the effective availability of advanced life support (ALS) resources. Triage protocols have thus become necessary. Triage decisions in situations of scarce resources were not extraordinary in the pre-COVID-19 era; these protocols abounded in the context of organ transplantation. However, this prior experience was not considered during the COVID-19 outbreak in Spain. Lacking national guidance or public coordination, each hospital has been forced to put forth independent (...) and autonomous triage protocols, most of which were, nonetheless, based on common ethical principles and clinical criteria. However, controversial, non-clinical criteria have also been defended by Spanish scientific societies and public institutions, including setting an age cut-off value for unilaterally withholding ALS, using ‘social utility’ criteria, prioritising healthcare professionals or using ‘first come, first served’ policies. This paper describes the most common triage criteria used in the Spanish context during the COVID-19 epidemic. We will highlight our missed opportunities by comparing these criteria to those used in organ transplantation protocols. The problems posed by subjective, non-clinical criteria will also be discussed. We hope that this critical review might be of use to countries at earlier stages of the epidemic while we learn from our mistakes. (shrink)

ABSTRACTThis article discusses the complexity in ironic echoic mention from the perspective of Cognitive Linguistics. It builds on the scenario-based approach to irony where ironic meaning is treat...

Attention-deficit hyperactivity disorder is one of the most common neurodevelopmental disorders in children and adolescents. People who have this disorder are characterized by presenting difficulties in the processes of sustained attention, being very active, and having poor control of their impulses. Despite the high prevalence of this disorder and the existence of various tests used for its diagnosis, few data are available regarding the usefulness and diagnostic validity of these tools. Given the difficulties that these subjects present in executive functions, (...) the aim of this study was to evaluate whether the Neuropsychological Assessment of Executive Functions battery for Children allows to establish specific profiles of executive performance for people with attention-deficit hyperactivity disorder. The sample was made up of 197 participants of both sexes, aged between 6 and 12 years age. A nonexperimental design was followed, using a comparative descriptive study method. The results indicated that the scales of phonological fluency, color path, rings, and interference are the most associated with the diagnosis of ADHD, providing data on inhibition, mental flexibility, sustained and selective attention, planning, verbal fluency, and working memory, among others. The practical implication of these results is in line with providing support in the clinical diagnosis that is carried out in children’s mental health units. In addition, the ENFEN tool can be valued as a suitable psychometric instrument in the psychoeducational field, helping professionals in a school environment to be more aware of the areas of cognitive development in which a student diagnosed with ADHD will have more difficulties and, in doing so, providing more adjusted and effective psychopedagogical measures when it comes to supporting students in their adaptation to the school environment. (shrink)

Recientemente fallecido, Pierre Aubenque consagró la mayor parte de su trayectoria a la interpretación del aristotelismo. Su apuesta por reconsiderar el sentido y la función de la metafísica aristotélica ha puesto de relieve la dignidad inherente a la tarea del historiador de la filosofía, cuya aproximación crítica al pasado exige la actualización de un singular compromiso intelectual. La nítida visión que tenía de los desafíos a los que debía responder la filosofía del s. XX, la participación en múltiples debates y (...) su entrega a la docencia universitaria, reaparecen hoy bajo los rasgos de un coraje bien reconocible en sus intervenciones. (shrink)

Previous research has shown positive relationships between fitness level and different cognitive abilities and academic performance. The purpose of this study was to explore the relationships between logical–mathematical intelligence and mathematical competence with physical fitness in a group of pre-adolescents. Sixty-three children from Castro del Río, aged between 11 and 12 years, participated in this research. The Superior Logical Intelligence Test and the EVAMAT 1.0–5 battery were used. Physical fitness was evaluated by the horizontal jump test, the 4×10 meter speed–agility (...) test, and the Course Navette test. The analyses showed positive relationships between physical fitness with logical–mathematical intelligence and mathematical competence. Specifically, linear regression analyzes indicated that the 4×10 speed–agility test significantly predicted mathematical competence and the horizontal jump test significantly predicted logical–mathematical intelligence. These results are in agreement with previous research, highlighting the importance of improving physical fitness from an early age due to its benefits for intellectual and academic development. (shrink)

La idea de “clasicismo” es una de las categorías más usadas en el mundo de las artes y de la estética filosófica. Sin embargo, la variedad de sus usos ha ocasionado que el término presente dificultades de interpretación y ambigüedades a quienes estudian el arte o la literatura clasicistas. El presente artículo se propone introducir algo de claridad y distinción en la discusión sobre la idea de “clasicismo”. Para ello, nos ocupamos, en primer lugar, de las cuestiones que conciernen a (...) su génesis histórica, disociándolo del concepto parejo, pero esencialmente diferente, de lo clásico. En segundo lugar, ofrecemos una caracterización de su estructura mediante una sistematización de sus cuatro sentidos principales tal y como se usan habitualmente en la bibliografía sobre el tema. De esta forma, el clasicismo se nos presenta como el problema de articular las diferentes conceptualizaciones filosóficas que se han adoptado sobre lo clásico. (shrink)

Background During the first weeks of March 2020 in Spain, the cases of severe respiratory failure progressively increased, generating an imbalance between the clinical needs for advanced life support (ALS) measures and the effective availability of ALS resources. To address this problem, the creation of triage committees (TC) was proposed, whose main function is to select the best candidates to receive ALS. The main objective of our study is to describe the clinical characteristics of the patients evaluated by the TC (...) of the Alcorcón Foundation University Hospital (AFUH) during the first wave of SARS CoV-2. Other objectives are to determine if there are differences between the patients considered candidates / not candidates for ALS and to analyze the functioning of the TC. Methods Retrospective observational study of all patients assessed by the AFUH TC. Results There were 19 meetings, in which 181 patients were evaluated, 65.4% male and with a mean age of 70.1 years. 31% had some degree of functional dependence, the Barthel median was 100 and Charlson 4. 58.5% were not considered a candidate for ALS at that time. The patients considered candidates to receive ALS were younger (72 vs 66; _p_ Conclusions The patients evaluated by the TC had a mean age of 70 years, high comorbidity and almost a third had some degree of functional dependence. More than half were not considered candidates for ALS at that time, these patients being older, with more comorbidity and a worse previous functional situation. TC decisions, based on objective clinical criteria, were almost always respected. Public institutions must get involved in triage procedures, which should and in our opinion must include the creation of TC in health centers. The implementation of Anticipated Decision programs (ADP) would help enable patients affected by triage decisions to participate in them. (shrink)

Mediante una investigación teórica y de trabajo de campo en relación a la adaptación de la titulación de arquitectura al EEES y con el objetivo de hacer efectivo un despliegue gradual del desarrollo de las competencias del submódulo de dibujo, se exponen los resultados de la coordinación entre asignaturas y una selección crítica y comparativa de actividades de aprendizaje. Se indaga además en la dispar distribución de las materias de dibujo de la adaptación al plan de bolonia, concluyendo con una (...) propuesta de despliegue independiente y mejorada del submódulo desvinculado de las materias que no le son afines. (shrink)

En este artículo se aborda la novela y el film de Georges Perec que llevan por título Un homme qui dort. Se establecen las conexiones filosóficas y literarias que la narración traza, la relación con el concepto de vida cotidiana tal como lo manejaron los Situacionistas o Henri Lefebvre, la búsqueda de la novela sin tema característica de la Modernidad y el concepto del formalismo ruso de extrañamiento como procedimiento de trascender y superar la experiencia instrumentalizada de la realidad.

El autor parte de la consideración de que el hilo conductor del cuerpo dispensa unidad a toda la combinación de fuerzas vivientes del individuo y de su entorno. Además, el sentimiento de estilo es una sensibilidad de carácter fisiológico que, a su vez, tiene que ver con el deseo de un cierto vagabundaje. La aspiración del arte es que suceda lo que en todo verdadero paseo: que nos devuelva al aprendizaje de la infancia, cuando las cosas se muestran por primera (...) vez, sin las presiones o perversiones que acarrean la rutina y la costumbre. Se trata de huir para producir lo real, para intensificar la experiencia de vida y la realidad. (shrink)