El conocimiento histórico –entendido como un proceso metacognitivo de asimilación constructiva sobre el pasado para explicar fenómenos– comporta un análisis del impacto y la transcendencia de determinados acontecimientos y procesos históricos, en cuya comprensión y valoración influye el concepto de relevancia histórica. Desde esta perspectiva es necesario implementar propuestas de evaluación sólidas, vinculadas al desarrollo competencial. El objetivo de este estudio es diseñar una guía de caracterización de los instrumentos evaluativos –actividades y ejercicios– más utilizados por el profesorado de Historia, (...) con el fin de optimizar los procesos de evaluación de esta competencia mediante una serie de descriptores estructurales, competenciales y transferenciales. Estos indicadores de pertinencia pueden marcar el camino de aquellos docentes que deseen perfeccionar su manera de evaluar lo históricamente determinante. En conclusión, este innovador planteamiento supone un proceso de formación continua del profesorado que contribuye a la mejora de la calidad educativa. (shrink)

El siglo XXI ha visto aflorar ultranacionalismos propios del pasado. El neonazismo tiene su razón de ser en el ataque inequívoco contra las minorías, a partir de una ideología racista, xenófoba y excluyente, que tiene como máxima expresión la negación de muchos de los genocidios históricos. Cada vez más partidos de todo el mundo defienden algunas de estas ideas y modelos de pensamiento en sus programas, suavizándolas a la par que van ganando peso en las instituciones e instaurando su discurso (...) e idearios en la ciudadanía. El objetivo de este estudio es analizar la efectividad de una propuesta docente sobre el Holocausto en estudiantes de la etapa de Bachillerato. Para ello, se ha creado un plan de acción que fomenta la indagación y pretende desarrollar una conciencia que promueva el pensamiento ético y critico de estos hechos. Los resultados son muy positivos y confirman que el Holocausto puede y debe trabajarse con documentos históricos, fuentes de internet y otros recursos que potencian el trabajo en grupo y la motivación hacia el conocimiento y la crítica de estos hechos, preservando la memoria histórica. (shrink)

The assembly of products or components by operators in industries is a complex task with recurring problems. In these processes, operators often make errors that can lead to defective products. Therefore, they need to be inspected later to verify their correct assembly. The main problems are caused by several reasons including high employee turnover, lack of experience in manufacturing specific products or confusion in interpreting instructions to assemble similar components. In this paper, a novel structured language aimed to describe the (...) required actions to manufacture a product in industrial assembly environments is presented. The main contribution is to provide a formal language to feed automatic systems that can verify through visual control whether the actions performed by the operator are carried out following the standard described by this language. In general, the use of this formal language will allow to minimize the negative impact of errors during assembly and to reduce waste in many forms in the industry. (shrink)

The purpose of the article was to determine the relationship between the organizational culture and the institutional management of the "Enrique López Albújar" Educational Institution, Piura. Work is worked under a quantitative approach, descriptive and correlational scope, 40 teachers participated as a sample. Among the results, it was found that there is no significant relationship between organizational culture and institutional management, which did not allow validating the research hypothesis; However, a significant relationship between norms and customs with institutional management (...) was found; which concludes in compliance with the norms and good customs based on values. (shrink)

Las posibilidades educativas que ofrece la realidad virtual inmersiva (RVI) son actualmente incuestionables, si bien aún se cuenta con escasas propuestas que estén diseñadas expresamente por y para el aula. En esta contribución se presentan los primeros pasos de una interesante iniciativa diseñada por la Fundación Integra (Región de Murcia) entre las que se encuentra el desarrollo de un videojuego de RVI de temática histórica ambientado en el Teatro Romano de Cartagena y al que se juega con gafas Oculus Rift (...) o HTC VIVE. El videojuego ha sido diseñado a modo de serious game y se completa con una secuencia didáctica que permite su integración en el aula. A pesar de que aún no se ha realizado la fase de evaluación de los aprendizajes, la observación de los primeros prepilotajes del juego con estudiantes parecen mostrar su valor como elemento para el aprendizaje y favorecer un acercamiento motivador a la historia. (shrink)

El presente artículo es el segundo de una trilogía cuya primera parte ha sido publicada en un número anterior de Arbor. En la ocasión precedente nos centramos en el período previo al nacimiento del Patronato. En esta oportunidad nos fijaremos en el aspecto de la organización del Patronato (epígrafe 3), así como en su financiación (epígrafe 4), asunto este último que permite dilucidar cuáles fueron los problemas que condujeron al declive de aquella institución. Volvemos a recordar que en la siguiente (...) entrega atenderemos la cuestión de la investigación científica y tecnológica realizada en el Patronato. Además, en el último de los artículos expondremos las conclusiones y los apéndices y bibliografía comunes a los tres escritos. (shrink)

: Este texto trata de la socialización de mujeres indígenas guatemaltecas enfocada a dos aspectos: cómo deben comportarse en relación a la vida pública y cómo deben orientar sus sentimientos. Se destaca que la formalidad en la educación moral de las mujeres contrasta con su vida social. Finalmente se sugiere la conveniencia de considerar en planos de igualdad tanto las narrativas formales como práctica social. This text is about the socialization of indigenous Guatemalan women, focusing on two aspects: how they (...) should behave in relation to public life and how they should direct their feelings. We highlight the idea that the formality of women’s moral education contrasts with their social life. Finally, the text suggests the desirability of considering both formal narratives and social practice on an equal basis. (shrink)

The global environmental and social-economic crises of industrialized agriculture have led to the emergence of agroecology as an alternative approach aiming to increase the ecological, social and economic sustainability of agri–food systems. The ‘multi-level perspective’ is now a widely used framework to understand and promote the upscaling of local innovation niches, such as agroecology, to broader scales, thus reconfiguring the dominant socio-technical regimes. Additionally, emergent ‘hybrid forums’ can provide a space between niche and regime where niche innovators can become important (...) actors in scaling up and out emergent innovations. In this paper, we examine a university training program, to better understand its role as a ‘hybrid forum’. Our analysis focuses especially on how the program, as an example of a hybrid forum, worked to reconfigure practices, concepts, and tools of local development practitioners. We also assess to what extent the program contributed to transitioning local development institutions toward agroecology. An online survey and in-depth interviews were carried out to determine how the training program has impacted the student’s opinions and their respective institutions. The results show that most of the students consider that they have acquired new theoretical frameworks and useful methods to re-framing their local development projects, that new alliances with multi-actor networks have been perceived, and that some internal changes of the local development practices have taken place. We conclude that the training program, as a hybrid forum, is capable of outscaling niche innovations through linkages with different kind of actors both from the niche and the regime. Political changes in the socio-technical landscape level offer an opportunity to amplify the impact of the innovations which are being generated by those multi-actor networks, but with a limited multi-level impact as far as institutional regime-actors not aligned with agroecological transition keep the most of the competencies on agri–food systems. (shrink)

The origin of the eukaryotic cell nucleus and the selective forces that drove its evolution remain unknown and are a matter of controversy. Autogenous models state that both the nucleus and endoplasmic reticulum (ER) derived from the invagination of the plasma membrane, but most of them do not advance clear selective forces for this process. Alternative models proposing an endosymbiotic origin of the nucleus fail to provide a pathway fully compatible with our knowledge of cell biology. We propose here an (...) evolutionary scenario that reconciles both an ancestral endosymbiotic origin of the eukaryotic nucleus (endosymbiosis of a methanogenic archaeon within a fermentative myxobacterium) with an autogenous generation of the contemporary nuclear membrane and ER from the bacterial membrane. We specifically state two selective forces that operated sequentially during its evolution: (1) metabolic compartmentation to avoid deleterious co‐existence of anabolic (autotrophic synthesis by the methanogen) and catabolic (fermentation by the myxobacterium) pathways in the cell, and (2) avoidance of aberrant protein synthesis due to intron spreading in the ancient archaeal genome following mitochondrial acquisition and loss of methanogenesis. BioEssays 28: 525–533, 2006. © 2006 Wiley Periodicals, Inc. (shrink)

Se presenta en tres artículos una investigación histórica acerca del Patronato Juan de la Cierva de Investigación Técnica, del Consejo Superior de Investigaciones Científicas, desde su fundación en 1939 hasta los años sesenta. El primero de los artículos nos aproxima a las instituciones precedentes al Patronato, especialmente a la llamada Fundación Nacional para Investigaciones Científicas y Ensayos de Reformas creada en 1934. El segundo de los artículos se ocupa de la organización y la financiación del Patronato. El tercero nos presenta (...) una síntesis de la investigación que se realizó en dicha institución, y se cierra con las conclusiones y los apéndices y bibliografía comunes a los tres escritos. (shrink)

El presente artículo es el último de una trilogía cuyas partes precedentes han sido publicadas en los números anteriores de Arbor. Ya hemos tratado los orígenes, la organización y la financiación del Patronato. Ahora, nos fijaremos en la investigación científica y tecnológica que se llevó a cabo en el periodo de la «autarquía económica» (epígrafe 5). Al final, exponemos las conclusiones y los apéndices y bibliografía comunes a los tres escritos.

El Patronato de Misiones Pedagógicas desarrolló una importante labor de recuperación y difusión de la cultura musical, especialmente del folklore musical español, en los primeros años de la II República española, al poner en marcha un servicio de música y un coro que se encargaron de acercar diferentes estilos y géneros musicales a los habitantes de las zonas rurales más deprimidas. En este artículo se presenta un estudio documental sobre el trabajo llevado a cabo por los integrantes del coro y (...) por las personas que se encargaron de custodiar los recursos musicales cedidos por el Patronato y de programar las diferentes actividades musicales en los municipios que gozaron de dichos recursos. A su vez, se recogen diversos testimonios que dan fe del cometido realizado por esta institución y del impacto cultural y musical que supuso en los habitantes de las localidades donde se desarrollaron las diferentes actividades misionales. (shrink)

Current discussions about education suggest that a transformative pedagogy that goes beyond the acquisition of knowledge and skills is needed. However, there is no agreement as to the inputs needed for a correct development of the educational model. In this sense, we can identify the presence of two different approaches to human and social capital which embody distinct educational worldviews. On the one hand, the ‘Marketable Human Capital’ or ‘Personal Culture’ approach, and on the other hand, the ‘Non-Marketable Human Capital’ (...) or ‘Civic Culture’ approach. The first, which is linked to mainstream economic theory, sees education as any stock of knowledge that contributes to an improvement in the productivity of the worker and individual well-being. The second, which is rooted in the Mediterranean tradition of political thought, highlights the role of civic virtues, reciprocity, and public action within the educational process and its influence on public happiness. In this article, we analyse these... (shrink)

Algae are significant members of Earth's biodiversity. Having been studied for a long time, the discovery of new algal phyla is extremely unusual. Recently, the enigmatic “Picobiliphyta,” a group of uncultured eukaryotes unveiled using molecular tools, were claimed to represent an unrecognized early branching algal lineage with a nucleomorph (remnant nucleus of a secondary algal endosymbiont) in their plastids. However, subsequent studies rejected the presence of a nucleomorph, and single‐cell genomic studies failed to detect any plastid‐related genes, ruling out the (...) possibility of plastid occurrence. The isolation of the first “picobiliphyte,” Picomonas judraskeda, a tiny organism that feeds on very small (<150 nm) organic particles, came as final proof of their non‐photosynthetic lifestyle. Consequently, the group has been renamed Picozoa. The passage from “picobiliphytes” to “picozoa” illustrates the crucial role that classical protistology should play to provide sound biological context for the wealth of data produced by modern molecular techniques. (shrink)

El carácter analítico de Meditationes implica que, por una parte, ninguna verdad puede ser interpretada sin referencia al lugar concreto que ocupa en el orden de razones y, por otra, que no existen en Meditationes ficciones que permanezcan advertidamente como tales. Sin embargo, la presencia de algunas pasiones no ha sido justificada, lo que pone en cuestión el carácter analítico de la obra. Proponemos que tales pasiones son efecto de juicios implícitos. Para poner a prueba nuestra hipótesis, hemos elegido un (...) enigmático párrafo que hemos denominado el “texto de la adoración.”. (shrink)

Although in theory social justice is considered as a core dimension of agroecological transitions, alternative food initiatives related to agroecology have been criticised for their exclusionary practices based on important social and economic biases. In this article, we adopt the lens of political intersectionality to study two cases of Agroecology-oriented Food Redistribution Coalitions in Spain that emerged to address the rising levels of food insecurity during the COVID-19 pandemic. We find that the coalitions represent a convergence of diverse social struggles, (...) placing intersectionally marginalized groups at the centre of their activism. However, we also uncover that coalition members participate in different ways depending on their socioeconomic profiles, which could perpetuate inequalities in organizational practices. One major point of tension is the need to balance the goal of providing access to healthy and sustainable food with the affordability of such produce. This leads to the adoption of hybrid food networks that include conventionally produced food. We also highlight that while the predominance of women in these coalitions reflects the unequal distribution of food-related care work in society, the collectivization of such work through AFRCs practices points to a transformation of gender relations. Territorialized alliances between actors from urban and rural settings and between urban centers and peripheries are established through the coalitions. However, such networks fall short on involving large numbers of agroecology-oriented initiatives and providing direct encounters between consumers and producers. Overall, the article underscores the importance of addressing intersecting inequalities within alternative food initiatives and argues that intersectional coalitions offer an intriguing example of how to promote such understanding and pave the way towards (more) just agroecological transitions. (shrink)

El objetivo fue analizar la adquisición de vocabulario en idioma inglés de estudiantes de bachillerato a partir de la implementación de actividades de resolución de problemas. Se empleó un diseño cuasiexperimental de pre y post test, con grupo experimental y control. Los resultados sugieren que las actividades de resolución de problemas son estrategias didácticas efectivas para la enseñanza del inglés.

This document describes the implementation of a conical tank control system using an adaptive neurofuzzy system. For implementation, an indirect approach is used where the controller is optimized using the model obtained during the plant identification carried out using data obtained during the system operation. Furthermore, implementation includes training of neuro fuzzy-systems and application to control a conical tank. Regarding plant identification, preliminary training takes place using data obtained for different input values. The controller configuration is established considering the analogy (...) with a discrete-time linear system. The simulation shows that the control system manages to approach the desired response given by the considered reference model. (shrink)

The first European settlements in the new world faced technical issues with the help of the XVI century scientific advances. Besides briefly exposing the scientific and technological situation, this paper explores, with the help of reverse engineering, two singular mechanical wits representative of the technological advances introduced in America to overcome different problems. Firstly, a pump, based on an alternative movement system through crankshafts and pistons used against the continuous flooding suffered in the Ciudad de México valley. Although flooding remained (...) a problem (it was solved in the XX century), hydraulic pumps were essential for continuous soil drainage. Secondly, a port crane for handling cannons, military devices, and construction materials during the Lima fortification in the XVII century. For both cases, reverse engineering, through engineering methods, Computer-Aided Design CAD programs, and additive manufacturing, provides virtual and/or tangible mockups that help to analyze and improve our knowledge about the dimensions, materials, and functions of used (and currently lost) mechanical systems during the American colonization. (shrink)

Roger Boscovich, belonging to XVIII century, halfway from Newton to Faraday, is traditionally considered as a newtonian philosopher. Nevertheless, following Berkson’s suggestion, he could be a Field Theory forerunner. In this work, we will try to go on with the idea of this suggestion in order to show this possible Boscovich’s contribution.

El siguiente informe pericial se basa en la experiencia de investigación de los firmantes en relación a las exhumaciones de fosas comunes de la Guerra Civil y la postguerra, y al conocido como “movimiento para la recuperación de la memoria histórica” que están teniendo lugar en España desde el año 2000, que ha enfatizado sus demandas sobre la suerte de los desaparecidos y ha puesto en marcha un ciclo de exhumaciones de fosas comunes derivadas de la Guerra Civil y la (...) dictadura. En este peritaje se usan las exhumaciones del siglo XXI como indicadores de la persistencia en el tiempo de las políticas y culturas del miedo instaladas en la sociedad española durante la Guerra Civil y la dictadura, más allá de las profundas transformaciones políticas e institucionales acaecidas en el país tras la muerte de Francisco Franco. Fue presentado como parte de la documentación de la demanda de Fausto Canales contra España el 15 de septiembre de 2012 en el Tribunal Europeo de Derechos Humanos. (shrink)

The global environmental and social-economic crises of industrialized agriculture have led to the emergence of agroecology as an alternative approach aiming to increase the ecological, social and economic sustainability of agri–food systems. The ‘multi-level perspective’ is now a widely used framework to understand and promote the upscaling of local innovation niches, such as agroecology, to broader scales (e.g., regional, national, international), thus reconfiguring the dominant socio-technical regimes. Additionally, emergent ‘hybrid forums’ can provide a space between niche and regime where niche (...) innovators can become important actors in scaling up and out emergent innovations. In this paper, we examine a university training program (Postgraduate Diploma in Local Agroecological Dynamization at the Universitat Autònoma de Barcelona), to better understand its role as a ‘hybrid forum’. Our analysis focuses especially on how the program, as an example of a hybrid forum, worked to reconfigure practices, concepts, and tools of local development practitioners. We also assess to what extent the program contributed to transitioning local development institutions toward agroecology. An online survey (n = 46) and in-depth interviews (n = 16) were carried out to determine how the training program has impacted the student’s opinions and their respective institutions. The results show that most of the students consider that they have acquired new theoretical frameworks and useful methods to re-framing their local development projects, that new alliances with multi-actor networks have been perceived, and that some internal changes of the local development practices have taken place. We conclude that the training program, as a hybrid forum, is capable of outscaling niche innovations through linkages with different kind of actors both from the niche and the regime. Political changes in the socio-technical landscape level offer an opportunity to amplify the impact of the innovations which are being generated by those multi-actor networks, but with a limited multi-level impact as far as institutional regime-actors not aligned with agroecological transition keep the most of the competencies on agri–food systems. (shrink)

Disagreement in science exists in a variety of strengths, from doubt-raising articles and issues of non-reproducibility up to raging disputes and major controversies. An often-latent form of disagreement consists of misconceptions whereby false ideas are held that run contrary to what is commonly accepted as knowledge. Misconceptions have been the focus of much research in education science and psychology. Here we draw attention to misconceptions that may arise in the very practice of science. We highlight formal features that can be (...) used to characterize misconceptions and distinguish them from controversies, in addition to how they relate to knowledge creation. (shrink)

Abstract“The Book of Secrets in the Results of Ideas”, usually called “The Book of Secrets” is a codex containing drawings and descriptions of thirty-one artifacts attributed to the engineer Alī Ibn Khalaf al-Murādī, who lived in Andalusia in southern Spain at the beginning of the 11th century. This manuscript is one of the first written testimonies that describe medieval mechanisms with complex precision. The aim of this work is to reconstruct and study from a historical and technological point of view (...) two of the ancient artifacts contained in the “Book of Secrets”, the “Fortress Demolisher” and the “Magic Well”. The “Fortress Demolisher” is a war machine designed to demolish the upper part of the walls or towers and consists of a battering ram mounted on a platform that can be raised several meters above the ground using a scissor mechanism. The “Magic Well” is a mechanism with several pulleys whose purpose is to raise water several meters from the bottom of a well by collecting a small portion of rope. To reconstruct the two artifacts, a digital model and a detailed study of the geometry and operation of the mechanisms, were first carried out. 3D printing, using the Fused Deposition Modelling technology, made the physical reproduction. The digitization and physical reproduction by 3D printing of the mechanisms represent an update of the traditional ways of transmitting knowledge. The use of these new technologies makes the knowledge more accessible, understandable and attractive. (shrink)

The goal of this paper is to examine whether business performance is affected by the adoption of practices included under the term Corporate Social Responsibility (CSR). To achieve this goal, we analyse the relation between CSR and certain accounting indicators and examine whether there exist significant differences in performance indicators between European firms that have adopted CSR and others that have not. The effects of compliance with the requirements of CSR were determined on the basis of firms included in the (...) Dow Jones Sustainability Index (DJSI), and specific accounting indicators were applied to measure performance. For the purposes of this study, we selected one group of firms belonging to the DJSI and another comprised of firms quoted on the Dow Jones Global Index (DJGI) but not on the DJSI. The sample was made up of two groups of 55 firms, studied for the period 1998–2004. Empirical analysis supports the conclusion that differences in performance exist between firms that belong to the DJSI and to the DJGI and that these differences are related to CSR practices. We find that a short-term negative impact on performance is produced. (shrink)

This paper explores the fundamental theses of the capabilities approach and differentiates it from notions of development that are more focused on the generation of wealth and growth. The paper emphasizes the importance of action in the development of life projects and describes the importance of emancipation in exercising freedoms. It then describes the education challenges from the perspective of the capabilities approach. It situates the importance of this approach in the Latin American context, where freedom is closely linked to (...) the pursuit of social justice. Finally, it describes the different areas of application of the capabilities approach in education and points out the limitations of formal education in the contemporary world. (shrink)

El problema ético de la huelga de hambre ha dado cabida a soluciones contrapuestas, incluso en el contexto de teorías éticas que rechazan el suicidio. Algunos piensan que la sola honestidad del fin subjetivo basta para justificar la acción del huelguista. Otros, aunque son minoría, sostienen que la huelga de hambre es un acto reprobable per se, porque implica un atentado directo contra la vida o salud del sujeto. En este trabajo se defiende esta última interpretación. A juicio de los (...) autores, la huelga de hambre es un caso de suicidio intencional. Luego, nunca es lícito, bajo ningún aspecto, llevar adelante una acción de esta naturaleza. (shrink)

El trazo gestual y la línea, originarios del campo del dibujo y de las artes visuales, poseen diversas funciones, además de numerosas finalidades comunicativas. En este trabajo realizamos primero un estudio de sus principales funciones: representativa, simbólica, y expresiva. Para posteriormente, corroborar como este elemento gráfico desvela un aporte de información y contenidos determinantes en manifestaciones y disciplinas ajenas a las artes.