We prove the following theorem. Let G be a connected simple bad group (i.e. of finite Morley rank, nonsolvable and with all the Borel subgroups nilpotent) of minimal Morley rank. Then the Borel subgroups of G are conjugate to each other, and if B is a Borel subgroup of G, then $G = \bigcup_{g \in G}B^g,N_G(B) = B$ , and G has no involutions.

The Alperin-Goldschmidt Fusion Theorem [1, 5], when combined with pushing up [7], was a useful tool in the classification of the finite simple groups. Similar theorems are needed in the study of simple groups of finite Morley rank, in the even type case (that is, when the Sylow 2-subgroups are of bounded exponent, as in algebraic groups over fields of characteristic 2). In that context a body of results relating to fusion of 2-elements and the structure of 2-local subgroups is (...) needed: pushing up, and the classification of groups with strongly or weakly embedded subgroups, or have strongly closed abelian subgroups (c.f, [2]). Two theorems of Alperin-Goldschmidt type are proved here. Both are needed in applications.The following is an exact analog of the Alperin-Goldschmidt Fusion Theorem for groups of finite Morley rank, in the case of 2-elements:Theorem 1.1.Let G be a group of finite Morley rank, and P a Sylow2-subgroup of G.If A, B⊆P are conjugate in G, then there are subgroups Hi≤Pand elementsxi∈N(Hi)for1 ≤i≤n,and an elementy∈N(P),such that for all i:1.Hiis a tame intersection of two Sylow2-subgroups;2.CP(Hi) ≤Hi;3.N(Hi)/Hiis2-isolatedand(a)(b). (shrink)

El estado actual de competición en el espacio exterior sitúa a las capacidades estratégicas espaciales de los países en el objetivo de la planificación estratégica de todos ellos. Los organismos internacionales están cobrando conciencia de la necesidad de proteger los activos espaciales ante un creciente número de amenazas, lo que requerirá de un esfuerzo adicional en cuanto a medios para mitigar sus efectos. La aproximación entre el espacio y la defensa, para poder actuar en este nuevo escenario, propicia la participación (...) de los organismos de defensa y seguridad y exige a los Estados el aporte de esta dimensión de defensa que se requiere para ello. España, tanto a través del Ministerio de Defensa como en otras iniciativas que requieren de su concurrencia, está preparada para contribuir a esta llamada desde la OTAN, Unión Europea y Naciones Unidas, con los medios disponibles y las medidas que su contexto país le permitan. (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)

This article analyzes the relation of the epistemological beliefs of students and teachers and the actions deployed in the classroom. The framework is the study of personal epistemology, which was developed, among other researchers, by Hofer, Pintrich and Schommer. The research method was, within the qualitative paradigm, through case studies, given the interest in describing the phenomenon in a specific scenario. The results show the epistemological beliefs of teachers and students, the events that make them evident and its relationship with (...) the behaviors shown in the classroom. The role of pedagogical beliefs as mediation between personal epistemology of educational actors and their practice are described and, finally, the relation between beliefs and educational practice is illustrated by analyzing specific class events and the justification expressed by teachers and students about their actions in the classroom. (shrink)

The relevance of smart speakers is steadily increasing, allowing users perform several daily tasks. From a commercial perspective, smart speakers also provide recommendations of products and services that may influence the consumer decision-making process. However, previous studies have mainly focused on the adoption of smart speakers, but there is a lack of proper guidelines that help design the way these devices should offer their consumption recommendations. Based on a stimulus-organism-response approach, we analyze how two features of smart speakers' recommendations influence (...) on the effectiveness of such recommendations through its impact on user engagement and attitude. Data was collected from a sample of undergrad students in Spain using an experiment design that focused on a restaurant recommendation, and analyzed using partial least squares. On the one hand, our results suggests that gender congruence generates user engagement with the smart speaker. On the other hand, message length is positively related to attitudes towards the restaurant, at a declining rate. In addition, while better attitudes lead to higher visiting intentions, the influence of engagement on visiting intentions is partially mediated via attitudes. Thus, our findings contribute to understand the antecedents of users' engagement with smart speakers, as well as its impact on the customers' willingness to follow smart speakers' recommendations, constituting a base to analyze the impact of artificial intelligence solutions aimed to smooth the transitions of a customer through the stages of purchase process. (shrink)

El presente trabajo analiza la (in)visibilización de los colectivos en especial situación de vulnerabilidad en las principales medidas diseñadas para abordar y controlar la pandemia por COVID-19, con especial referencia a las principales recomendaciones de los órganos de protección de los derechos humanos. Asimismo, indaga en cómo estas medidas pueden constituir un factor que potencie los obstáculos para el ejercicio de los derechos y enuncia las oportunidades que la pandemia puede abrir para configurar una mayor protección de las personas y (...) su dignidad. (shrink)

La presente ponencia analiza las relaciones de opresión, en los términos de I. M. YOUNG, que se generan a partir de las principales disposiciones del Sistema de Pensiones chileno establecido por el Decreto Ley 3.500, de 1980 y la Ley Nº 20.255, de 2008, el cual al basarse en estereotipos de género, produce graves consecuencias para las mujeres en materia de pensiones al no abordar las estructuras que asignan a las mujeres determinadas tareas en la sociedad, repercute en el monto (...) de sus pensiones y las somete a condiciones de mayor vulnerabilidad en relación con los hombres. (shrink)

Several recent publications attest to a renewed interest, at the dawn of the 21st century, in the philosophy of Charles S. Peirce. While agreeing with the relevance of Peirce philosophy for the 21st century, we disagree with some interpretations of Peirce as a utilitarian-based pragmatist, or with attempts to extract from Peirce a theory of social justice for 21st century societies. A critical exploration of Peirce’s philosophy of science, particularly his idea of scientific inquiry as “the study of useless things”, (...) serves to illuminate the un-pragmatic and anti-utilitarian dimension of Peirce’s thought, as well as to reveal his true ethical relevance for the 21st century. (shrink)

The systemic complexity of sustainable development imposes a major cognitive challenge to students’ learning. Faculty can explore new approaches in the classroom to teach the topic successfully, including the use of technology. We conducted an experiment to compare the effectiveness of a simulation vis-à-vis a case-based method to teach sustainable development. We found that both pedagogical methods are effective for teaching this concept, although our results support the idea that simulations are slightly more effective than case studies, particularly to teach (...) its multidimensional and inter-temporal nature. Therefore, our findings suggest the use of both simulations and case studies as pedagogical tools to convey the main ideas associated with sustainable development. (shrink)

Se proponen tres ejemplos históricos para mostrar cómo la religión, en la forma del cristianismo católico, ha promovido el avance de la filosofía moral o la filosofía social. Frente a posiciones que entienden que la religión tiene como función principal la conservación del status quo de una sociedad en particular (Marx o Durkheim) estos casos notables muestran que más bien es al contrario: las motivaciones religiosas han provocado cambios en la forma de pensar que inevitablemente implican cambios en el modo (...) de vida (Weber). Elegimos tres autores ligados por la época y el espacio (Siglo de oro español) y la religión (cristianismo católico). Juan Luis Vives propuso desde la filosofía cristiana que inspira todo su trabajo una asistencia regular y organizada a los pobres, que andando el tiempo se convertiría en la asistencia social contemporánea. Francisco de Vitoria, reflexionando sobre las causas de la guerra justa, los títulos de conquista o esclavitud, sentó las bases del derecho internacional al margen de la imposición violenta. Juan de Mariana hizo una reflexión política limitando tanto el poder del emperador que incluso sugirió la posibilidad del tiranicidio en caso de necesidad. Estos tres autores nos muestran que, aunque la religión continúa jugando un papel importante en la transmisión del estado de cosas, también ejerce una influencia que permite la evolución en las costumbres y, en consecuencia, en la reflexión ética. (shrink)

Résumé Considéré comme l’action individuelle par excellence, le dribble renvoie le plus souvent à l’exercice d’une maîtrise technique que seuls quelques protagonistes d’exceptions sont à même d’exécuter. Cette image purement descriptive, centrée sur le seul pratiquant, n’entretient qu’un lointain rapport avec la réalité de ce qui constitue la raison d’être profonde de cette action motrice. Le dribble, entendue comme un acte qui consiste à conduire un objet, – une balle, un palet –, en alternant des temps de contact et de (...) non contact, est avant tout à envisager dans sa dimension collective. Là est le point aveugle des analyses menées à son propos. Dans cette étude, on considérera le dribble comme un type de conduite motrice porteur d’intentions auxquelles sont attachées des significations de nature essentiellement sociale. Fondamentalement le dribble est relation, c’est-à-dire interaction. Il doit être envisagé sous l’angle de la sémiotricité, autrement dit des significations que les pratiquants lui accordent. Sa fonction est essentiellement d’annoncer les actions futures. À ce titre, il renvoie à une classe de comportements tactiques dont les significations relèvent d’une interprétation en situation sous la dépendance directe des règles du jeu sportif considéré. Loin d’être univoque, le dribble doit être envisagé comme un « signe » qui doit être décodé par les pratiquants en fonction de la grammaire du jeu considéré selon un double axe ; syntagmatique et sémantique. Ce travail à pour objectif de repérer les différentes significations possibles du « signe-dribble », considéré comme un praxème. (shrink)

The year of the centennial of the Argentinean writer Jorge Luis Borges is probably the right time to exhume one of the links that this universal writer had with William James. In 1945, Emece, a publisher from Buenos Aires, printed a Spanish translation of William James’s book Pragmatism, with a foreword by Jorge Luis Borges.

Connections between J.L.Vives and C.S. Peirce are shown. Not only is reflec-tion on language and meaning central in both thinkers, but Peirce also knew Vives' thought especially through W. Hamilton and the Scottish common sense school. Peirce credited Vives with being a forerunner of the use of dia-grams in logic, and both share a critical view of late medieval nominalistic logicians and a social and hierarchical conception of knowledge.

En diciembre de 1996 fui invitado a impartir una sesión a profesores de lógica en los estudios institucionales del Studium Generale de la Prelatura del Opus Dei. En aquella ocasión preparé concienzudamente un texto escrito que pasé a mi querido y admirado colega Ángel Luis González para su revisión. Pocos días después Ángel Luis me lo devolvió con unas pocas correcciones y sugerencias y un alentador “¡Mucho ánimo!” en su encabezamiento. Durante muchos años conservé ese texto con sus (...) anotaciones manuscritas. Por este motivo, me ha parecido que podría ser adecuado reproducir en este volumen en homenaje de Ángel Luis aquella exposición en forma abreviada con unas pocas correcciones y actualizaciones de detalle. Mi exposición se divide en tres partes: 1) Situación de la lógica en la filosofía contemporánea; 2) El papel de la lógica en los estudios institucionales; y termina con 3) A modo de conclusión, una reflexión más personal. (shrink)

Building upon the insights of scholars attuned to story, narrative, and myth, this article explores the relationship between myth, science, and religion. After clarifying the interplay of the three terms—story, narrative, and myth—and the preference for the term myth, this article will argue that myth can serve as a medium through which religion, neuroscience, and mental well‐being interact. Such an exploration will cover the role of myths in religion, the neurological basis of myth, and the practices of narrative psychology and (...) bibliotherapy. The article will conclude with suggestions for understanding and utilizing the relationship between myth and the scholarly study of the relationship between science and religion. This article ultimately suggests that myth can operate as a methodological aid to the science‐and‐religion field. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Philosophy and Literature 25.2 (2001) 356-360 [Access article in PDF] Book Review Ghostly Demarcations: A Symposium on Jacques Derrida's 'Specters of Marx' Ghostly Demarcations: A Symposium on Jacques Derrida's 'Specters of Marx', edited and introduction by Michael Sprinker; 278 pp. London: Verso, 1999, $20.00. "Comrades, encore un effort!" (p. 233) is the Communist battle cry by which Derrida signals to his fiercest Marxist critics that he is not ready (...) to throw in the towel and concede defeat. The ten essays included in Ghostly Demarcations are intended to remedy what the editor in his brief introduction describes as the insufficiency or incompleteness of Derrida's first major attempt, in Specters of Marx (1993), to come to terms with Marx, more so than with Marxism. As Sprinker puts it, if one came to the book "in the hope that now, at long last, Derrida's... relationship to Marxism will be profoundly clarified, or definitely resolved, one will almost certainly be disappointed" (p. 1). Derrida himself feels good about Specters of Marx, He wrote that book with a "certain gaiety of affirmative thinking," he says. "It is," as he sees it, "a gay, humorous book. It is more light-hearted than I am, undoubtedly..." (p. 259), which he could hardly claim for its sequel, "Marx & Sons," the essay by which Derrida responded to his critics in Ghostly Demarcations.The texts included in this polemical volume present a broad spectrum of views, some of them critical enough to deeply wound Derrida. It takes Derrida nearly five pages of deconstructive maneuvers to warm up for his rebuttal. [End Page 356] Then, with all his fresh energy, the first punch is directed at a woman, obviously one of his demons, since there are no essays by women included in this volume. Addressing this absent female foe, Derrida speaks of her "unbridled manipulation of a rhetoric" (p. 223), her "final gleam of lucidity" (p. 222), and "outright inability to read" (p. 223). He is actually referring to absent Gayatry Chakravorty Spivak whose superb reading, translation and preface to Derrida's Of Grammatology in 1974, contributed in no small measure to Derrida's initial success by making his work accessible and comprehensible to English speaking scholars.Derrida's appreciation of the nine, all-male contributors, whose essays are indeed present in Ghostly Demarcations, appears in direct relation to the amount of critique or homage paid him and his deconstructive theories. The shortest (five pages) but clearly the most provocative essay, is by Terry Eagleton who, similar to other Marxists, refuses to accept Derrida's claim that deconstruction is a "radicalization of Marxism" (p. 101). "There is also something unavoidably opportunist about his political pact" (p. 86), says Eagleton, his "sudden dramatic somersault onto a stalled bandwagon" (p. 84). "Where was Jacques Derrida, he asks, when we needed him?" (p. 83). Fearlessly, Eagleton likens deconstructive rhetoric to senseless Panglossian discourse using absurd word clusters such as "onto-teleo-theological animus," and "tele-techno-medio-economic and scientifico-military forces" (p. 85). En revanche, Derrida makes irate comments about Eagleton throughout his text, mocking the critic's "triumphant air [who] doubtless assumes that he will spark the plaudits, mirth, or wrath of the crowd..."( p. 251).The longest, somewhat Proustian essay (44 pages) by Werner Hamacher, about "the messianism of commodity language," is a well written but essentially uncritical, deconstructive reading of Marx and Derrida built around abundant quotations from Derrida's text such as: "Pluriformative and reformative, the revolutionary performative of the absolute messianic promise is also a performative that turns against itself..." (p. 196). Derrida praises the "many luminous, powerful gestures [made to Derrida!] of his [Hamacher's] interpretation," calling it "impressive, admirable and original" (p. 224). Similar praise, for his "perceptive essay" (p. 244), goes to Warren Montag who adheres to Derrida's critical jargon and supports the philosopher's polemics surrounding "ontology."While Antonio Negri is sympathetic to Derrida, he also feels, as do other critics, that "Derrida is a prisoner of the ontology he critiques" (p. 13): "In playing with... (shrink)

This article is a response to Josh Reeves's recent book Against Methodology in Science and Religion: Recent Debates on Rationality and Theology that welcomes Reeves's proposal for an anti‐essentialist future for the field of science‐and‐religion, particularly because it has the potential to move the field beyond current, well‐worn methods: the dominance of Christian theology and doctrine, the importance of credibility strategies, and the dependence upon philosophical discourses. Reeves’ proposal has the potential to open the science‐and‐religion field to other topics, problems, (...) and methods, such as studying lived science‐and‐religion. One way of doing this is to study popular culture and its artifacts such as literature, which portrays a co‐mingling of religion and science at the level of day‐to‐day experiences and practices of characters. For at the level of lived experience, religion and science are not well‐defined disciplines neatly compartmentalized into separate academic departments. (shrink)

From 26th to 28th of April 2016, it took place in the University of Granada a conference on presumptions, presumptive inferences and burdens of proof that, joint with other ongoing initiatives, has contributed to renew the interest of the argumentation community in analysing these notions and the relationships between them. This special volume of Argumentation consists of a selection of papers presented at this conference.

Climate change exacts a devastating toll on health that is rarely incorporated into the economic calculus of climate action. By aligning health and environmental policy and collaborating across borders, governments and industries can develop powerful initiatives to promote both environmental and human health.

Current methods of obtaining an informed consent leave much to be desired. Patients rarely read consent forms or understand all of the risks, benefits, or alternatives associated with their treatment. Evaluating the advantages and disadvantages of treatment options often presents a more significant challenge for patients with lower levels of health literacy. This article reviews the evidence of shortcomings in our informed consent system and then explores the potential for a new approach to engage patients at all levels of health (...) literacy in their treatment decisions. Specifically, the article will examine the potential of shared decision-making to bridge gaps in knowledge, increase patient adherence to treatment, and improve health outcomes in low health literacy patient populations. Leveling barriers to treatment information for disadvantaged populations should be a public health imperative, especially if it can be shown to improve health outcomes and reduce health disparities. (shrink)

Current methods of obtaining an informed consent leave much to be desired. Patients rarely read consent forms or understand all of the risks, benefits, or alternatives associated with their treatment. Evaluating the advantages and disadvantages of treatment options often presents a more significant challenge for patients with lower levels of health literacy. This article reviews the evidence of shortcomings in our informed consent system and then explores the potential for a new approach to engage patients at all levels of health (...) literacy in their treatment decisions. Specifically, the article will examine the potential of shared decision-making to bridge gaps in knowledge, increase patient adherence to treatment, and improve health outcomes in low health literacy patient populations. Leveling barriers to treatment information for disadvantaged populations should be a public health imperative, especially if it can be shown to improve health outcomes and reduce health disparities. (shrink)