Poco sabemos del impacto de muchas sustancias químicas artificiales en nuestro suelo. Existen más de 100.000 diferentes, y aunque muchas se han prohibido por peligrosas, sabemos que ya se encuentran en suelos a los que han llegado, la mayoría de las veces, por vertidos no controlados.

Resumen: Este artículo tiene como foco de estudio la fonología segmental del mapudungun, en general, y el estatus de los fonos interdentales /en el chedungun hablado en Alto Biobío, en particular. Se elicitó una lista léxica adaptada de Croese, 30 colaboradores adultos, bilingües de chedungun y español, pertenecientes a 10 localidades pehuenches de esta comuna. Mediante evidencia cuantitativa, visual, palatográfica y de contraste en ambiente análogo, se concluye que dichos fonos tienen estatus fonémico en la zona señalada.: This article focuses (...) on the Mapudungún segmental phonology in general, and the status of the interdental phones / from the Chedungun spoken in Alto Biobío in particular. An adapted lexicon list by Croese was elicited from 30 adult bilingual assistants, belonging to 10 towns of this community. Through the quantitative, visual, palatographic and analog environment contrast we concluded that those phones have phonemic status in the mentioned area. (shrink)

Este artículo analiza Aventuras sigilosas (1945), poemario de José Lezama Lima, a través del concepto de deseo como principio estructural y dinámico en el proceso de transformación al que es sometido el sujeto protagónico; en dicho tránsito, la compleja red de imágenes en sucesión, con distintos valores simbólicos en los poemas, tiene una función central. Para estudiar este fenómeno, se retoman tres composiciones: “Llamado del deseoso”, “El fuego por la aldea” y “El guardián inicia el combate circular”, pues constituyen puntos (...) nodales en el itinerario de transformaciones que articula este poemario. Tras el análisis textual, se señala la naturaleza heterogénea e integral del deseo no sólo como principio propio de la esfera sexual, sino como una voluntad dinámica de cambio, vinculada con imágenes naturales y míticas como el fuego. Palabras clave: deseo, imagen, transformación, fuego, poesía. (shrink)

La vulnerabilidad narrativa, producto de la exclusión de los marcos de representación del contexto, que priva a algunos de ser vistos, escuchados y sentidos por la mayoría, implica la precariedad de amplias generaciones transformadas en “vidas fungibles”, esto es, en instrumentos vivos y animados de las máquinas de la guerra. Estos hombres y mujeres, empero, no son engranajes de la destrucción, sino seres con un nombre y una historia singular. Su capacidad de traducir narrativamente la realidad ofrece otro encuadre de (...) interpretación sobre el pasado y el futuro a partir de su llamado a una nueva vida y al fin de la violencia armada. Aquí reside la propuesta de esta contribución, en la que, usando las reflexiones de Hannah Arendt y de Judith Butler, además de una entrevista a profundidad con un excombatiente colombiano en proceso de reintegración, se advierte en la narración la respuesta a la fungibilidad —‍ la condición de existencias usufructuables, reemplazables y matables‍‍— de forma que se posibilita una vida biográfica, cargada de porvenir. (shrink)

A partir del análisis e interpretación de diversos textos fundacionales sobre el grupo de discusión y su concepción en el ámbito español y latinoamericano, se critica la idea reduccionista de entender esta técnica como una forma más abierta y menos directiva del genérico focusgroup anglosajón. Dicha confusión es analizada con el fin de establecer las relaciones existentes entre ambas técnicas y las posibles diferencias que las distingue y opone entre sí. El resultado del análisis lleva a concebir al grupo de (...) discusión cómo una técnica necesitada del focusgoup y, a la vez, establecer en dicha necesidad un motivo para indagar en la parte sustantiva de la dinámica grupal que caracteriza a esta técnica.This articleanalyses the tendency to understand the technique of discussiongroup asa less directivefocus group. This simplifying idea is confusing and is criticized with the objective to know the motives that hold together both techniques. The analysis established the dependent relationship between discussiongroup and focus group, as well as finding in this dependence the reason to understand the discussiongroup as a group dynamics totally different to the focus group. (shrink)

Resumen:Este artículo critica las estrategias sin éxito que actualmente utiliza la investigación social cualitativa para dotar de un referente empírico centrado exclusivamente en las locuciones de los informantes. Dicha crítica permite fundamentar y concretar la propuesta de la inclusión sistemática de referentes empíricos ad-hoc en la producción y registro del habla objeto de estudio, contribuyendo de este modo a fomentar una investigación social cualitativa menos hermética, más equitativa y también más sostenible y reutilizable.Palabras clave: discurso social; referente empírico; metodología; análisis (...) cualitativo; texto. (shrink)

ResumenLa investigación social cualitativa ha prescindido de la utilización de referentes empíricos accesibles y compartidos a partir de los cuales acordar la producción y el análisis del habla. A partir de este criticable déficit, lo que hace este trabajo es analizar el problema del habla utilizada como material empírico para observación desde el punto de vista de la labor científica. Con esta finalidad se argumenta la importancia de la comunicabilidad de las observaciones producidas y de su análisis a partir de (...) los problemas que plantea la función deíctica del habla observada en la investigación. La conclusión del trabajo plantea la necesidad acordar e introducir un referente objetual en la situación de observación experimental con el fin de garantizar la comunicabilidad de las acciones investigadoras, así como la recepción y circulación del habla observada entre las distintas comunidades de hablantes y sistemas discursivos.Palabras clave: discurso social; validez; investigación cualitativa; función deíctica; comunicación. (shrink)

The impact of digital devices and the Internet has generated various changes at social, political, and economic levels, the repercussion of which is a great challenge characterized by the changing and globalized nature of today's society. This demands the development of new skills and new learning models in relation to information and communication technologies. Universities must respond to these social demands in the training of their future professionals. This paper aims to analyze the empirical evidence provided by international studies in (...) the last eleven years, related to the digital literacy of university students, including those pursuing degrees related to the field of education. Our findings highlight the fact that the digital literacy that is offered in universities to graduate/postgraduate students, in addition to treating digital literacy as a central theme, also focuses on perceived and developed self-efficacy. This is done by strengthening competencies related to digital writing and reading, the use of databases, the digital design of content and materials, and the skills to edit, publish or share them on the web, or applications aimed at treating digital literacy as emerging pedagogies and educational innovation. Secondly, we found studies related to digital competencies and use of the Internet, social networks, web 2.0, or the treatment of digital risks and their relationship with digital literacy. Thirdly, we found works that, in addition to focusing on digital literacy, also focused on different psychological constructs such as motivation, commitment, attitudes, or satisfaction.Systematic review registration:https://www.scopus.com/home.uri; https://www.recursoscientificos.fecyt.es/. (shrink)

In line with recent efforts to empirically study the folk concept of weakness of will, we examine two issues in this paper: (1) How is weakness of will attribution [WWA] influenced by an agent’s violations of best judgment and/or resolution, and by the moral valence of the agent’s action? (2) Do any of these influences depend on the cognitive dispositions of the judging individual? We implemented a factorial 2x2x2 between–subjects design with judgment violation, resolution violation, and action valence as independent (...) variables, and measured participants’ cognitive dispositions using Frederick’s Cognitive Reflection Test [CRT]. We conclude that intuitive and reflective individuals have two different concepts of weakness of will. The study supports this claim by showing that: a) the WWA of intuitive subjects is influenced by the action’s (and probably also the commitment’s) moral valence, while the WWA of reflective subjects is not; b) judgment violation plays a small role in the WWA of intuitive subjects, while reflective subjects treat resolution violation as the only relevant trait. Data were collected among students at two different universities. All subjects (N=710) answered the CRT. A three-way ANOVA was first conducted on the whole sample and then on the intuitive and reflective groups separately. This study suggests that differences in cognitive dispositions can significantly impact the folk understanding of philosophical concepts, and thus suggests that analysis of folk concepts should take cognitive dispositions into account. (shrink)

In this research, a sliding mode regulator with sine mapping is suggested for the stabilization of electricity generators being affected by magnet interaction nonlinearities and generator nonlinearities. To reach this goal, our suggested regulator has the following contributions: it starts from the sliding mode regulator with the modifications that the saturation mapping is used to reach a smoother performance instead of the signum mapping, and the sine mapping is applied to reach an upper bound in the proportional gain error, it (...) is used to reach some chosen constant behaviors for the angle position, angle speed, and current in the electricity generators, and its stabilization is ensured based on the Lyapunov approach. We show the simulation of the suggested regulator in two electricity generators. (shrink)

Resumen Este artículo se ocupa del estatus fonético-fonológico de las consonantes interdentales, en el Mapudungun hablado en el sector costa de isla Huapi, IX Región de La Araucanía. Después del análisis de pares mínimos, cuantificación de los segmentos interdentales versus alveolares, y la consciencia fonológica de los hablantes encuestados, se pudo concluir la vigencia de estos segmentos en tanto fonos y en tanto fonemas. Es decir, en esta zona son fonemas.This article deals with the phonetic-phonological status of the interdental consonants (...) ],, in the Mapudungun spoken in the Coastal area of the Huapi Island, IX Region of Araucania. After analyzing minimal pairs, quantification of interdental segments versus alveolar, and the phonological awareness of the assessed speakers, the validity of these segments could be concluded both as phones and as phonemes. That is to say,, are phonemes in this area. (shrink)

Adaptive optics are techniques used for processing the spatial resolution of astronomical images taken from large ground-based telescopes. In this work, computational results are presented for a modified curvature sensor, the tomographic pupil image wavefront sensor, which measures the turbulence of the atmosphere, expressed in terms of an expansion over Zernike polynomials. Convolutional neural networks are presented as an alternative to the TPI-WFS reconstruction. This technique is a machine learning model of the family of artificial neural networks, which are widely (...) known for its performance as modeling and prediction technique in complex systems. Results obtained from the reconstruction of the networks are compared with the TPI-WFS reconstruction by estimating errors and optical measurements. The reconstructed wavefronts from both techniques are compared for wavefronts of 153 Zernike modes. For this case, a detailed comparison and grid search to find the most suitable neural network is performed, searching between multi-layer perceptron, CNN and recurrent networks topologies. In general, the best network was a CNN trained for TPI-WFS reconstruction, achieving better performance than the reconstruction software from TPI-WFS in most of the turbulent profiles, but the most significant improvements were found for higher turbulent profiles that have the lowest r0 values. (shrink)

Esta obra nos ofrece una reflexión de calado en relación al proceso de formación del profesorado, a partir del fenómeno educativo entendido como un hecho político, desde una praxis profesional crítica y reflexiva sobre una base conceptualmente sólida, que favorezca el surgimiento de un sujeto personal y colectivo auto-determinado. Hecho formativo que, profundizando en las bases educativas, analiza la autora con gran rigor científico desde la teoría y la política educativa, en una síntesis int..

El texto es una reseña sobre el libro "El clown existencial. Historia de una poética sobre la condición humana", de Carlos Gutiérrez Bracho.

La filosofía de G.W.F. Hegel en el período temprano de Frankfurt se vincula a la idea de unidad, totalidad de la vida, en relación con la naturaleza. Hölderlin coincidirá con su Hyperion en esta idea de exaltación de la vida, que se encuentra en el manuscrito de Hegel de 1800 poco antes de abandonar Frankfurt. El amor es desarrollado como conciliación entre los amantes que sin suprimir las diferencias une lo separado, pero la vida es “sentimiento” y no cabe aquí (...) la reflexión del entendimiento. Hegel analiza el amor, en relación a la presencia e identidad, la unidad y los hijos y la propiedad. De modo particular en el texto de Jena del System Sittlichkeit, Hegel pasa a analizar la intersubjetividad desde la violencia. La posibilidad de admitir tanto el valor como la pasividad que se abandona al destino. Aunque la conciencia de sí, considera Hegel cabe en el reconocimiento de las autoconciencias de los esposos establecidas por la conciliación del amor (donde analiza el pudor). Con todo entiende que no cabe reflexión sobre la vida si no es en la violencia mediante la exposición de la vida a la muerte. Es otro concepto diferente a la vida como principio y proceso (werden) de otro modo diferente a la elaboración de aquella unidad orgánica del todo de Frankfurt en el que cabían las multiplicidades integradas en la vida orgánica y pensará (Jena) que “el único señor es la muerte”. Pero tematiza, también “el alma bella” que identifica con Jesús y asocia al amor puro y al destino. (shrink)

Edición a cargo de José Luis Tasset & Francisco Vázquez García. Introducción de José Luis Tasset. Epílogo de Francisco Vázquez García.

In lieu of an abstract, here is a brief excerpt of the content:Overcoming Greed:Buddhists and Christians in Consumerist SocietyPaul F. KnitterAs I understand my assignment, I don't find it an easy one. I've been instructed to carry on a lopsided dialogue. Generally, what generates productive dialogue is a proper balance of learning and questioning. My assigned job in this exchange is to question more than learn—to offer some Christian queries about how Buddhists think we can overcome greed and find a (...) path out of the consumerist jungle that surrounds us. Actually, I'd prefer it the other way around, for I'm convinced that we Christians have some very important, if not absolutely vital, things to learn from Buddhists in our own efforts to deal with the jungle. And I will mention some of them. But, following instructions, my main focus in what follows will be on areas where I suspect that Buddhists can learn something, maybe something very helpful, in our shared efforts to deal with greed and the havoc it is working on people and planet.I need to specify my Christian voice in this conversation—or, as they say, where I'm coming from within the many and diverse neighborhoods that make up the Christian community. I'll be reflecting and speaking out of my knowledge of and experience with Christian liberation theology, especially as it has been born, developed, and taken new shapes among the poor and suffering of Latin America. The voices and concerns you will hear in my own remarks are originally those of Christian thinkers and activists such as Jon Sobrino, Gustavo Gutiérrez, Leonardo Boff.In order to bring some order into the swarm of insights and questions that these extremely rich presentations have stirred up in me, I'll gather my comments around two broad topics.The Inner and the Outer: Enlightenment and the Reign of GodMy first general area of conversation is a familiar one not just for the Buddhist-Christian conversation but also for all activists who call themselves religious: the need for, but the difficulty of, holding together the "inner and the outer"—action and [End Page 65] contemplation, personal and social transformation, or what I will term Buddha's enlightenment and Jesus' vision of the Reign of God.What Christian Liberation Theologians Need to Hear from BuddhistsFirst, let me simply list, and hold back from delving into, some crucial lessons that we Christians not only can but drastically need to learn.First, what Jesus and his followers call the Reign of God will be built on sand unless it is grounded in the personal, inner conversion of those who are trying to build it. The church will be only a empty building—or worse, a den of thieves—if its members, and that includes its leaders, are not transformed by the Spirit. Or, in Judith Simmer-Brown's words, "No fundamental transformation can take place anywhere without the joining of inner change and outer change" (emphasis mine). Or, in Ken Barnhill's words (quoted by Brown), "Social work entails inner work.... social change and inner change are inseparable." Or, in the powerful and widely quoted admonition of Thich Nhat Hanh: We have to be peace if we want to make peace. Christians know this, and they talk about it. But in my own life and in what I see in my church, how often we forget it in our efforts to get things done, in our concern for the institution, in our determination to bring about political change.Second, I both cringed and nodded approvingly when I read about Judith Simmer-Brown speaking about "idiot compassion." In opposing wealthy landowners in El Salvador, or in a business-controlled city council in Cincinnati, how often I have felt but perhaps not identified in myself and in my fellow Christian activists "...unskillful acts...the impulsive response based on insufficient knowledge [that] can quickly become ineffective, causing personal burnout." Such idiocy, grounded in goodwill, derives, again, from an insufficient balancing of the inner and the outer.Third, and more sharply focused on the suffering caused by greed, Judith offers a hope, or deep belief, that is often not clearly present among liberation theologians since... (shrink)

In the past decade, significant social movements emerged in South Africa, in response to specific urban challenges of injustice or exclusion. This article will interrogate the meaning of such urban social movements for theological education and the church. Departing from a firm conviction that such movements are irruptions of the poor, in the way described by Gustavo Gutierrez and others, and that movements of liberation residing with, or in a commitment to, the poor, should be the locus of our theological (...) reflection, this article suggests that there is much to be gained from the praxis of urban social movements, in disrupting, informing and shaping the praxis of both theological education and the church. I will give special consideration to Ndifuna Ukwazi and the Reclaim the City campaign in Cape Town, the Social Justice Coalition in Cape Town, and Abahlali baseMjondolo based in Durban, considering these as some of the most important and exciting examples of liberatory praxes in South Africa today. I argue that theological education and educators, and a church committed to the Jesus who came ‘to liberate the oppressed’, ignore these irruptions of the Spirit at our own peril. (shrink)

El reconocimiento de los agentes externos como una fuente importante de conocimiento para el desarrollo de los procesos de innovación ha hecho que las empresas tengan que hacer frente a una decisión importante: generar o adquirir externamente el conocimiento tecnológico que precisan. Debido a sus implicaciones, esta decisión se ha convertido en un tema de creciente interés entre los académicos y estudiosos de la innovación, propiciando el desarrollo de toda una literatura, teórica y empírica, sobre los factores y motivaciones que (...) inciden en la misma. En este artículo se presenta una revisión de esta literatura, a partir del análisis de tres estrategias de innovación (hacer, comprar y cooperar) y considerando las aportaciones derivadas de la teoría económica de los costes de transacción y de los enfoques basados en las capacidades de la empresa. (shrink)

O presente artigo traz à baila uma reflexão teórico-narrativa acerca daquela que tem sido chamada «Espiritualidade Martirial». A conceituação sobre espiritualidade e martírio deu-se por meio de pesquisa exploratório-bibliográfica. A discussão central foi tecida em diálogo, sobretudo, com os estudos teológicos de Casaldáliga, Sobrino e Gutierrez. As conclusões apontam no sentido de que a Espiritualidade Martirial não está relacionada ao desejo de ser mártir. Tampouco o martírio relaciona-se à concepção de sacrifício cruento como redentor de pecado. A Espiritualidade Martirial diz (...) respeito à fidelidade ao Evangelho do perseguido e mártir, Jesus de Nazaré. De igual modo, diz respeito à fidelidade à realidade histórica atual e concreta na qual o cristão deve anunciar boas notícias aos pobres e denunciar a injustiça estrutural. Por fim, diz respeito à memória da morte dos inocentes e à fileira dos seguidores de Jesus que foram martirizados. (shrink)