Este artículo analiza lo que nos cuentan las imágenes fotográficas en su reverso y en las huellas del verso, a través de las anotaciones, marcas o descripciones que contienen, que entregan información importante de su contexto de producción, de los sujetos u objetos fotografiados y de su trayectoria. Así, se configura un sentido apropiado de la imagen. Este artículo, pone el foco en imágenes fotográficas escolares porque representan un espacio de convivencia particular y de intercambio de experiencias que, en alguna (...) medida, se captura y resguarda en ellas. En los pliegues, en los bordes oscurecidos o desgastados, en los márgenes marchitos y en las marcas de óxido o de otros materiales, es posible también encontrar historias, restos de memorias, afectos y rostros en un contrapunto que va más allá de la motivación del fotógrafo para captar el instante en un encuadre específico. Para el análisis, se presentan algunas imágenes fotográficas pertenecientes al archivo escolar de un centro educativo de la ciudad de Talca en la región del Maule (Chile), pues permiten develar el significado familiar, mnemónico y comunitario que estas adquieren al reunirse en ese repertorio. Este valor igualmente se desprende de la observación del material oculto en el reverso y de las marcas del verso de las imágenes fotográficas. (shrink)

Resumen: Este artículo reflexiona acerca de la producción artística y literaria chilena que surge en la década del 70, en la que se estrecha la relación entre fotografía y literatura, colaboración que se incrementa a mediados de los 80. Las imágenes fotográficas son trasladadas al campo artístico por medio de operaciones intermediales que plagan de nuevos significados la escena artístico-literaria nacional. Estas convergen como señales disruptivas en la construcción de un texto híbrido, que al mismo tiempo enriquecen los cruces palimpsésticos (...) y mutables entre la fotografía y la literatura chilena. Con el recurso de las imágenes fotográficas, en textos como De la tierra sin fuegos de Juan Pablo Riveros, se reconstruyen escenarios donde algunas problemáticas histórico-sociales son discutidas y confrontadas, como sucede con el genocidio indígena de la Patagonia austral y con la dictadura militar chilena.: This article reflects on the Chilean literary and artistic production that begins around the 70’s, where the relationship between photography and literature was strengthened; this relationship increased by mid-80. Photographic images are transferred to the artistic field through intermedial operations that plague the national literary scene with new artistic meanings. These disruptive signals converge in the construction of a hybrid text, and at the same time, enrich palimpsestic and mutable crosses between photography and literature. With the use of photographic images, texts such as De la tierra sin fuegos by Juan Pablo Riveros reconstruct scenarios where certain historical and social issues are discussed and confronted, such as the indigenous genocide of Southern Patagonia and the Chilean military dictatorship. (shrink)

The acquisition and evolution of speech production, discourse and communication can be negatively impacted by brain malformations. We describe, for the first time, a case of developmental dynamic dysphasia (DDD) in a right-handed adolescent boy (subject D) with cortical malformations involving language-eloquent regions (inferior frontal gyrus) in both the left and the right hemispheres. Language evaluation revealed a markedly reduced verbal output affecting phonemic and semantic fluency, phrase and sentence generation and verbal communication in everyday life. Auditory comprehension, repetition, naming, (...) reading and spelling were relatively preserved, but executive function was impaired. Multimodal neuroimaging showed a malformed cerebral cortex with atypical configuration and placement of white matter tracts bilaterally and abnormal callosal fibers. Dichotic listening showed right hemisphere dominance for language and functional magnetic resonance imaging (fMRI) additionally revealed dissociated hemispheric language representation with right frontal activation for phonology and bilateral dominance for semantic processing. Moreover, subject D also had congenital mirror movements (CMM), defined as involuntary movements of one side of the body that mirror intentional movements of the other side. Transcranial magnetic stimulation and fMRI during voluntary unimanual (left and right) hand movements showed bilateral motor cortex recruitment and tractography revealed a lack of decussation of bilateral corticospinal tracts. Genetic testing aimed to detect mutations that disrupt the development of commissural tracts correlating with CMM (e.g., Germline DCC mutations) was negative. Overall, our findings suggest that DDD in subject D resulted from the underdevelopment of the left inferior frontal gyrus with limited capacity for plastic reorganization by its homologous counterpart in the right hemisphere. Corpus callosum anomalies probably contributed to hinder interhemispheric connectivity necessary to compensate language and communication deficits after left frontal involvement. (shrink)

The current times call for reforms in educational processes. The Covid-19 pandemic had an unforeseen impact on the educational system in all countries. This need for change requires new pedagogies and new methods for teaching and learning. Understanding the need for change is essential for the formulation of adaptive proposals, as well as for the generation of training activities to complement the teaching curriculum. New educational practices lead to a vision of educational quality, with new approaches that allow the continuous (...) integration of knowledge and permanent interaction with the student. This paper presents an analysis of the new teaching methodologies in times of confinement due to the pandemic caused by Covid-19. Keywords: Teaching methodologies, educational system, learning process. References [1]É. Tremblay-Wragg, C. Raby, L. Ménard y I. Plante, «El uso de estrategias didácticas diversificadas por cuatro profesores universitarios: ¿qué contribución a la motivación de aprendizaje de sus alumnos?,» Docencia en educación superior, vol. 26, nº 21, 2021. [2]L. Czerniewicz, R. Mogliacci, S. Walji, A. Cliff, B. Swinnerton y N. Morris, «Enseñanza y aprendizaje académico en el nexo: desagregación, mercantilización y digitalización en la educación superior,» Teaching in Higher Education, vol. 26, nº 2021, p. 16, 2021. [3]S. Dogan y A. Adam, «Aumentar el efecto del desarrollo profesional en la instrucción efectiva a través de comunidades profesionales,» Docentes y docencia: teoría y práctica, vol. 26, nº 3-4, pp. 326-349, 2020. [4]I. M. Torres Salas, «La enseñanza tradicional de las ciencias versus las nuevas tendencias educativas,» Educare, vol. 14, nº 1, pp. 131-142, 2010. [5]B. Fabio, J. Antonio Palomino y J. González Henríquez, «Evaluación y contraste de los métodos de enseñanza tradicional y lúdico,» Revista de Educación física y deportes, vol. 13, nº 94, pp. 29-36, 2008. [6]Y. Benítez y C. Mora, «Enseñanza tradicional vs aprendizaje activo,» Revista Cubana de Física, vol. 27, nº 2A, pp. 175-179, 2010. [7]P. Morales Bueno y V. Landa Fitzgerald, «Aprendizaje basado en problemas,» Theoria, vol. 13, nº 1, pp. 145-157, 2004. [8]R. Gil-Galván, I. Martín-Espinosa y F. Gil-Galván, «University student perceptions of competences acquired through problem-based learning,» Educación XXI, vol. 24, nº 1, pp. 271-295, 2020. [9]E. Ortiz Cermeño, «El aprendizaje basado en problemas,» Perfiles Educativos, vol. 41, nº 164, pp. 208-213, 2019. [10]E. Araos-Baeriswyl, C. Moll-Manzur, Á. Paredes y J. Landeros, «Aprendizaje invertido: un enfoque pedagógico en tiempos de pandemia,» Rev. Atención Primaria, vol. 53, nº 1, p. 117, 2021. [11]V. León-Carrascosa, M. Belando-Montoro y S. Sánchez-Serrano, «Design and validation of a questionnaire to evaluate the service-learning methodology,» Rev.Estudios sobre educación, vol. 39, nº 1, pp. 247-266, 2020. [12]J. Collado-Ruano, M. Ojeda, M. Malo y D. Amino, «Educación, arte e interculturalidad: El cine documental como lenguaje comunicativo y tecnología innovadora para el aprendizaje de la metodología I + D + I,» Rev. Texto livre, vol. 13, nº 3, pp. 376-393, 2020. [13]P. M. Bueno y V. Landa Fitzgerald, «Aprendizaje basado en problemas,» Theoria, vol. 13, nº 1, pp. 145-157, 2004. [14]J. A. Martí, M. Heydrich, M. Rojas y A. Hernández, «Aprendizaje basado en proyectos: Una experiencia de innovación docente,» Universidad EAFIT, vol. 46, nº 158, pp. 11-21, 2010. [15]L. Rojas y N. M. Jaimes, «Canvas LMS y el trabajo colaborativo como metodología de aprendizaje en entornos virtuales,» de Congreso Ibérico de Sistemas y Tecnologías de la Información, CISTI, Bogotá, Colombia, 2020. [16]B. Bordel y P. Mareca, «Results and Trends in educational MOOCs in the engineering area with MIRIADAX platform. A case study,» de 15th Iberian Conference on Information Systems and Technologies, CISTI 2020; Seville; Sevilla, España, 2020. [17]K. Vermeir y G. Kelchtermans, «Innovative practice as interpretative negotiation.A case-study on the kamishibai in Kindergarten.,» Teachers and Teaching: Theory and Practice, vol. 26, nº 3-4, pp. 248-263, 2020. [18]B. Tucker, «The Flipped Classroom: Online instruction at home frees class time for learning,» Education Next, vol. 1, nº 1, pp. 82-84, 2012. [19]M. V. Ledo, N. R. Michelena, N. N. Cao, I. d. R. M. Suárez y M. N. Vialart Vidal, « Aula invertida, nueva estrategia didáctica,» Educación Médica Superior, vol. 30, nº 3, pp. 678-688, 2016. [20]Metodologías activas por medio de las TIC, [Online]. Available: https://www.campuseducacion.com/blog/recursos/articulos-campuseducacion metodologias-activas-por-medio-de-las-tic/?cn-reloaded=1. [Last access: February 14, 2021]. (shrink)

Tal como se señala en el prólogo, redactado por el colombiano Carlos Eduardo Martínez Hincapié, la obra que a continuación reseñamos se ha atrevido a hurgar en los últimos episodios de la humanidad, para presentarnos uno de aquellos fenómenos que aún no logran aparecer como categorías de análisis e interpretación al interior de las ciencias sociales. Es de este modo que, y dada la advertencia anterior, nos encontramos con la propuesta del filósofo e historiador español Mario López Martínez, s..

One of the most pressing and debated issues in contemporary sport is the inclusion of transgender athletes in competition. This is especially the case of transgender women who seek to compete in th...

There is a constructive method to define a structure of simple k -cyclic Post algebra of order p , L p , k , on a given finite field F ( p k ), and conversely. There exists an interpretation Φ 1 of the variety $${\mathcal{V}(L_{p,k})}$$ generated by L p , k into the variety $${\mathcal{V}(F(p^k))}$$ generated by F ( p k ) and an interpretation Φ 2 of $${\mathcal{V}(F(p^k))}$$ into $${\mathcal{V}(L_{p,k})}$$ such that Φ 2 Φ 1 ( B ) (...) = B for every $${B \in \mathcal{V}(L_{p,k})}$$ and Φ 1 Φ 2 ( R ) = R for every $${R \in \mathcal{V}(F(p^k))}$$. In this paper we show how we can solve an algebraic system of equations over an arbitrary cyclic Post algebra of order p, p prime, using the above interpretation, Gröbner bases and algorithms programmed in Maple. (shrink)

This study analyzes the development of a culture of personal transformation in contemporary societies, showing its forms and orientations, and pointing to the factors that favor its development. This new culture unifies psychology and spirituality, emphasizes the transformational power of the experience of transcendence, and flourishes in an heterogeneous and loosely organized milieu driven by trends toward individualization and hybridization. The interpretative hypothesis is that this cultural development is a response to a societal change at the level of the individual: (...) the expansion of the self. The culture of personal transformation can be explained as a response to the existential turmoil that is inherent to the expansion of the self. (shrink)

In this article, we scrutinize views that justify exclusionary policies regarding transgender athletes based primarily on physiological criteria. We introduce and examine some elements that deserve...

Organized youth sport has become a prominent activity in Western societies, one around which myriad families structure their daily lives. Despite its popularity, or rather because of it, youth sport is besotted with complex problems. One distinctive set of problems pertains to children’s opportunities to benefit from engagement in sport. Such problems require a reflection on the conditions of justice. The goal of this paper is to explore ethical guidelines to make youth sport more just. The paper begins by characterizing (...) childhood, youth, and youth sport. Then, it articulates considerations of justice in youth sport. Together, these sections provide a basis to formulate the general features of a just youth sport. What emerges is a vision of youth sport that the adults involved in it should emphasize and implement if their young charges, and youth sport, are to flourish, as well as a novel approach to formulating and justifying normative criteria to make youth sport more just. (shrink)

This paper aims to apply drama tasks (Gerard Finger, 2000) in the English class- room, which will add dynamism to the classroom, for the development of students’ oral competences. The aim is to work with drama in the Primary Education class- room through a series of tasks to improve oral communication, teamwork skills and to foster students’ self-esteem and confidence when producing oral language. This project addresses pupils in the sixth level of Primary Education. Theatre is a very versatile tool (...) that provides many resources and learning, helping to improve aspects such as corporal and oral expression and cooperative work. (shrink)

The Iowa Gambling Task (IGT) is a popular method for examining real-life decision-making. Research has shown gender related differences in performance, in that men consistently outperform women. It has been suggested that these performance differences are related to decreased emotional control in women compared to men. Given the likely role of emotion in these gender differences, in the present study we examine the effect of a humor induction on IGT performance and whether the effect of humor is moderated by gender. (...) IGT performance and parameters from the Expectancy Valence Model were measured in 68 university students (34 men; mean age 22.02, SD = 4.3 and 34 women; mean age 22.3, SD = 4.1) during a 100 trial-IGT task. Participants were exposed to a brief video before each of the IGT decisions available; one half of the sample (17 men and 17 women) was exposed to 100 humor videos, while the other half was exposed to 100 non-humor videos during the task. We observed a significant interaction between gender and humor, such that under humor, women’s performance during the last block (trials 80-100) improved (compared to women under non-humor), whereas men’s performance during the last block was worse (compared to men under non-humor). Consistent with previous work, under non-humor, men outperformed women in the last block. Lastly, our EVM results show that humor impacts the learning mechanisms of decision-making differently in men and women. Humor impaired men’s ability to acquire knowledge about the payoff structure of the decks, and as a consequence they were stuck in suboptimal performance. On the other hand, humor facilitated women’s ability to explore and to learn from experience, improving performance. These findings deepen our understanding of the mechanisms underlying IGT decision-making and differential effects of humor in men and women. (shrink)

ABSTRACTIn this paper, we provide a normative analysis of the Women’s Tennis Association revised policy on maternity leave, which is regulated by its special ranking rule. To do so, we first explore how the revised policy functions when probed in relation to the nature of competitive sport. Then, we examine the revised policy through the lens of the literature on maternity discrimination. We argue that, when compared to its previous formulation, the revised special ranking rule is morally defensible because it (...) better protects female players’ interest in being able to combine their professional careers and their personal lives. However, we also identify several pronounced vulnerabilities and criticisms to the revised policy. (shrink)

In this paper we describe a propagation experiment to measure the one-way velocity of electromagnetic radiation. The experiment utilizes the rotation of the earth to interchange the positions of two rubidium vapor frequency standards over12 h, thereby canceling initial clock phase differences. It is demonstrated that although the drift characteristics of modern rubidium atomic clocks may be large for long-term absolute timing requirements, the short-term random fluctuations are small. It is found that over a24-h period, the long-term drift can be (...) accurately parameterized in retrospect and removed, thereby permitting the detection of temporal variations less than1 nsec in magnitude. With coherent summing techniques this value may be significantly reduced, and it becomes realistic to consider an experiment where the clocks are separated by distances of the order of several hundreds of meters in order to detect velocities of the order of that of the solar system with respect to the center of the galaxy(≈10 5 m sec −1 ), thus ensuring that the rotational motion of the earth has a negligible effect in altering the relative inertial characteristics of the reference frames of each clock. It is demonstrated that under such conditions the measurement of the one-way speed of propagation of electromagnetic radiation is not only meaningful, but can be simply implemented with commercially available instrumentation. (shrink)

The mental model theory is an approach with clear psychological, linguistic, and cognitive consequences. This paper delves into some of the epistemological conclusions that can be drawn from it. In particular, it addresses the process why knowledge acquisition can modify the inferences people tend to make. That process is described by means of an example based on a well-known logical schema related to the conditional: Modus Tollendo Tollens.

Este trabajo tiene el objetivo de argumentar cómo se manifiesta la generosidad en la vida y obra de José Martí. Muestra la necesidad e importancia de recurrir a sus obras para fortalecer este valor desde los escenarios familiares, escolares, comunitarios y sociales. Se concluyó que la generosidad constituye en la actualidad una tarea pedagógica de gran importancia y el legado martiano es una vía obligada a recorrer. This work has the objective of analyzing how the generosity in Marti's life and (...) work is expressed. It shows the need and importance of turning to his works to strengthen this value from the family, scholar, community and social scenes. It was concluded that generosity constitutes at the present time a pedagogical task of great importance and the Martian legate is an obligated way to travel. (shrink)

Los métodos productivos de enseñanza preparan a los estudiantes para resolver problemas semejantes a los que se enfrentarán en el ejercicio laboral. Este trabajo tiene como objetivo fundamentar la pertinencia de la utilización del caso clínico como herramienta didáctica para la enseñanza en las ciencias básicas biomédicas, mediante un sistema de tareas para abordar los contenidos del tema Fisiología de la sangre de la asignatura Sangre y Sistema Inmune de la carrera de medicina. El caso clínico permite la vinculación de (...) las ciencias básicas biomédicas con las ciencias clínicas. Su utilización contribuye a la aproximación del estudiante de las ciencias básicas al estudio de estas durante su formación médica. El aprendizaje se logra a lo largo del proceso de resolución del mismo, se estimula la incorporación de conceptos necesarios para resolver el problema y se aprende un método para abordar situaciones en la práctica. Se elaboró un sistema de tareas y preguntas derivadas del problema profesional síndrome anémico. El problema docente se basó en un artículo médico que expone un caso de lesiones por empalamiento que produjo un gran sangramiento en un individuo. Se elaboraron preguntas problémicas relacionadas con la fisiología de la sangre y el tratamiento que recibió el paciente con eritropoyetina, factores de la coagulación y soluciones cristaloides en sustitución de la sangre. Se incluyó una pregunta que aborda un conflicto ético para sistematizar los conocimientos adquiridos en la asignatura Sociedad y Salud II. Productive teaching methods train students to solve problems similar to those they will face in their work life. The objective of the paper is to argue pertinence in the use of the clinical case as a didactic tool in biomedical basic sciences teaching by means of a task system that deals with the contents of the Blood Physiology subject in the Blood and Immune System subject matter of the medicine degree. Clinical cases enable the link between biomedical basic sciences and clinical sciences. Their use contributes to basic sciences students' approach to the study of the latter during their medical training. Learning is achieved through its solving process; the introduction of necessary problem-solving concepts is encouraged and a method to deal with in-practice situations is learned. A task and questions system derived from the anemic syndrome professional problem was made. The teaching problem was based on a medical article which presents a case of an individual who suffered impaling injuries which caused a great bleeding. Problem questions related to blood physiology and to the erythropoietin-based treatment the patient received, coagulation factors and crystalloid fluids used as blood substitutes, were prepared. It was included a question that deals with an ethical conflict in order to systematize the knowledge acquired in the Society and Health II subject matter. (shrink)

Schools are an essential part of students’ lives and can promote and facilitate their well-being. Although research on well-being among school-aged children and adolescents has distinguished subjective well-being from social well-being, very few studies examined student’s social well-being at school. SWS is understood as students’ valuation of the circumstances and functioning of their school. This framework posits that the context of the schools can shape students’ perception of feeling integrated and making significant contributions to their schools. However, not much is (...) known regarding the joint contribution of individual, family, and school characteristics to students’ SWS. This study analyzed these joint contributions in a nationally representative sample of 6,389 children and adolescents enrolled in 5th–11th grades. Findings show that being female and younger were individual predictors of SWS. Students’ satisfaction with their family and fewer changes of schools were also significant contributors. When students’ perceptions of their schools were incorporated, the individual and family characteristics decreased or lost significance. In the full model, the highest contribution to SWS was explained by the school-level aggregated perception of school climate. These findings call for integrated policies and practices to foster students’ sense of belonging, feeling integrated, and contribution to their schools, with a focus on school-level interventions to improve SWS through positive and engaging school climates that foster students’ sense of agency. (shrink)

BackgroundThe Patient Health Questionnaire-9 is the most well-known self-report measure to screen for depressive symptomatology, although discerning which is the factor structure that represents the best fit remains a challenge.ObjectiveThe aim of this study was to analyze the psychometric properties and factorial structure of the Spanish version of the PHQ-9 in a large sample of Ecuadorian college students.MethodsA total of 5,394 students from three Ecuadorian universities were surveyed using a computerized questionnaire within a 4-week assessment period. The PHQ-9 was tested (...) for factorial structure, reliability, and correlations with other mental health-related measures.ResultsThe hierarchical model that included a general factor and three nested factors had a better fit, and such a hierarchical structure remained invariant across sex and age. Total omega value was 0.90 for the total scale and hierarchical omega values were 0.68 for the general factor, as well as 0.34, 0.38, and 0.44 for the respective nested factors. Moreover, PHQ-9 scores were significantly higher among women, although effect sizes of comparison of those sex differences were very small. Finally, the PHQ-9 scores correlated with multiple mental health indicators.DiscussionThe Spanish version of the PHQ-9 showed good psychometric properties among Ecuadorian college students. The hierarchical structure showed the best fit for the data, including not only a dominant general factor, but also the somatic, cognitive/affective and concentration/motor subcomponents. In conclusion, the PHQ-9 tool seems to represent an easy-to-implement screening questionnaire to design preventive programs for those Ecuadorian college students at risk of developing depressive disorders. (shrink)

The ethics of using genetic engineering to enhance athletic performance has been a recurring topic in the sport philosophy and bioethics literature. In this article, we analyze the ethics of cloning horses for polo competition. In doing so, we critically examine the arguments most commonly advanced to justify this practice. In the process, we raise concerns about cloning horses for polo competition, centering on normative aspects pertaining to sport ethics usually neglected by defenders of cloning. In particular, we focus on (...) how this practice could have a detrimental impact on the central skills of polo, and how it unjustly creates an uneven playing field. We suggest that the polo community would benefit from critically considering the ethical quandaries posed by the practice of cloning horses for polo competition. (shrink)

The ethics of using genetic engineering to enhance athletic performance has been a recurring topic in the sport philosophy and bioethics literature. In this article, we analyze the ethics of cloning horses for polo competition. In doing so, we critically examine the arguments most commonly advanced to justify this practice. In the process, we raise concerns about cloning horses for polo competition, centering on normative aspects pertaining to sport ethics usually neglected by defenders of cloning. In particular, we focus on (...) how this practice could have a detrimental impact on the central skills of polo, and how it unjustly creates an uneven playing field. We suggest that the polo community would benefit from critically considering the ethical quandaries posed by the practice of cloning horses for polo competition. (shrink)

Recent events at Enron, K-Mart, Adelphia, and Tyson would seem to suggest that managers are still experiencing ethical lapses. These lapses are somewhat surprising and disappointing given the heightened focus on ethical considerations within business contexts during the past decade. This study is designed, therefore, to increase our understanding of the forces that shape ethical perceptions by considering the effects of business school education as well as a number of other individual-level factors (such as intra-national culture, area of specialization within (...) business, and gender) that may exert an influence on ethical perceptions. We found significant effects for business education, self-reported intra-national culture, area of specialization within business, and gender for some and/or all areas of ethics examined (i.e., deceit, fraud, self-interest, influence dealing, and coercion). One of our most encouraging findings is that tolerance for unethical behavior appears to decrease with formal business education. Despite the prevalent stereotype that business students are only interested in the bottom line or that business schools transform idealistic freshman into self-serving business graduates, our results suggest otherwise. Given the heightened criticism of the ethicality of contemporary managerial behavior, it is heartening to note that, even as adults, individuals can be positively affected by integration of ethics training. (shrink)