DAU - Digital Archive of URL (Ramon Llull University)
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La mandra
No full textL’eficiència, la recerca de la productivitat i la necessitat de competir sembla que ens condueixin a la proscripció de la mandra. Tanmateix, sense mandra i sense les altres passions desordenades no és possible viure una vida plenament humana. Potser la tasca de l’home no consisteix a ascendir sinó a aprendre a conviure amb unes passions que el fan ser qui és.
La mandra és una característica essencial de la naturalesa humana, i el desig de superar-la, també. La mandra revela les nostres autèntiques motivacions, és un instrument de discerniment i pot ser la porta al descans i a la vida contemplativa. La mandra, les ganes de no fer res, ens obren l’espai interior. Però la seva veritable funció és la de vacunar-nos contra una imatge idealitzada de nosaltres mateixos, una imatge de la qual deriven un bon nombre d’obligacions fictícies que no aporten una millora substancial a la nostra vida.
La sèrie «Pecats capitals» pretén oferir una visió fresca i rigorosa de cada «pecat» de la mà de joves assagistes catalans.info:eu-repo/semantics/publishedVersio
Brand experience: the physical, digital, and phygital formats
No full textinfo:eu-repo/semantics/publishedVersio
Computational thinking and educational robotics integrated into project-based learning
No full textIn the context of the science, technology, engineering, arts and mathematics disciplines in education, subjects tend to use contextualized activities or projects. Educational robotics and computational thinking both have the potential to become subjects in their own right, though not all educational programs yet offer these. Despite the use of technology and programming platforms being widespread, it is not common practice to integrate computational thinking and educational robotics into the official curriculum in secondary education. That is why this paper continues an initial project of integrating computational thinking and educational robotics into a secondary school in Barcelona, Spain. This study presents a project-based learning approach where the main focus is the development of skills related to science, technology, engineering, arts and mathematics and the acquisition of computational thinking knowledge in the second year of pupils’ studies using a block-based programming environment. The study develops several sessions in the context of project-based learning, with students using the block-programming platform ScratchTM. During these sessions and in small-group workshops, students will expand their knowledge of computational thinking and develop 21st-century skills. We demonstrate the superior improvement of these concepts and skills compared to other educational methodologies.info:eu-repo/semantics/publishedVersio
Educational warehouse: modular, private and secure cloudable architecture system for educational data storage, analysis and acces
No full textData in the educational context are becoming increasingly important in decision-making and teaching-learning processes. Similar to the industrial context, educational institutions are adopting data-processing technologies at all levels. To achieve representative results, the processes of extraction, transformation and uploading of educational data should be ubiquitous because, without useful data, either internal or external, it is difficult to perform a proper analysis and to obtain unbiased educational results. It should be noted that the source and type of data are heterogeneous and that the analytical processes can be so diverse that it opens up a practical problem of management and access to the data generated. At the same time, ensuring the privacy, identity, confidentiality and security of students and their data is a “sine qua non” condition for complying with the legal issues involved while achieving the required ethical premises. This work proposes a modular and scalable data system architecture that solves the complexity of data management and access. On the one hand, it allows educational institutions to collect any data generated in both the teaching-learning and management processes. On the other hand, it will enable external access to this data under appropriate privacy and security conditions.info:eu-repo/semantics/publishedVersio
La comunicación publicitaria para televisión de las energéticas españolas en el periodo 2004-2018
No full textLa publicidad en televisión ha evolucionado en el transcurso de los últimos años. Este hecho no solo se debe a la aparición de nuevos medios publicitarios, sino también como respuesta a los cambios producidos en la sociedad. Una sociedad más plural y más diversa, preocupada por la salud, la defensa del medio ambiente, la ecología, los principios de políticas ambientales, la sostenibilidad y la responsabilidad social corporativa. En definitiva, en un contexto sociocultural caracterizado por el advenimiento de un nuevo consumidor con una mayor conciencia medioambiental y consciente de que los productos o servicios que consume pueden tener una incidencia negativa en el planeta, las empresas deben adaptar sus productos o servicios a este nuevo paradigma. En el estudio que se presenta a continuación, examinamos si la creciente presencia del cambio climático en las agendas pública y mediática ha producido efectos en las estrategias de comunicación de las principales compañías energéticas.
El objetivo de la investigación es analizar los anuncios emitidos en televisión en los últimos 15 años por las compañías del sector de la energía; en concreto, de la categoría de energía doméstica. Para ello, se analizan los 303 spots aparecidos en este medio entre los años 2004 y 2018. Se han quedado fuera del análisis los llamados formatos especiales como los patrocinios, los momentos internos, etc. A través de un estudio cuantitativo y del análisis de contenidos se examina el contenido de sus mensajes, la ambientación o contexto en el que los mensajes son transmitidos y los recursos retóricos utilizados en los anuncios. El análisis realizado permite identificar dos grandes tipos de estrategias competitivas (no autoexcluyentes) por parte de las compañías de energía en España. La primera estrategia consiste en potenciar la imagen corporativa de las compañías a través de su vinculación con valores asociados a la defensa del medio ambiente. La segunda consiste en intentar incrementar la cuota de mercado a través de una política de comunicación enfocada en el precio y en la oferta de productos o servicios agrupados ( oferta combinada de gas natural, electricidad y servicios de mantenimiento y reparación). Esta segunda estrategia parece sustentarse en el hecho de que el mercado de la energía es fundamentalmente un mercado de commodities4 y en la convicción de que el comportamiento de los consumido res obedece a una lógica estrictamente económica, es decir el factor fundamental de decisión del consumidor es el precio.info:eu-repo/semantics/publishedVersio
Formación de urbanistas usando realidad aumentada y tecnologías de aprendizaje móvil
No full textThis paper describes an educational experience using augmented reality (AR) on mobile devices as a tool for learning urban design concepts and specifically for architecture degree students. In a real project-based exercise, the participants had to design a sculpture to be placed in a public space, checking the suitability of the object as for example the form, scale, location, materials, etc., and taking into account the surroundings. The project is controlled on-site using AR on mobile platforms, encouraging collaborative learning by sharing the 3D models of their proposals, and acting both as producers and consumers of AR content in the process. To assess both the usability of technology, as well as the learning improvement, the class was divided into two groups with equivalent pre-course grades: a control group, who followed the conventional course in the laboratory, and a test group, who used AR technology. At the end of the course, the AR-using group showed a significant increase in academic performance, higher motivation and satisfaction compared to the control group.El presente artículo describe una experiencia educativa usando Realidad Aumentada (RA) en dispositivos móviles para el aprendizaje de conceptos de diseño urbano en estudiantes del Grado de Arquitectura. A tal efecto, se ha diseñado un ejercicio práctico sobre la casuística de un proyecto real, donde los estudiantes deben diseñar una escultura para una plaza pública en función de los parámetros del entorno, debiendo controlar sus parámetros, la forma, escala, localización, materiales, etc. El ejercicio se visualiza y controla mediante plataformas móviles de RA, lo que permite enfatizar un aprendizaje colaborativo mediante el estudio de las propuestas del resto de estudiantes in situ. Para la evaluación del proceso, tanto a nivel de usabilidad como de mejora del proceso educativo, hemos dividido a los estudiantes en dos grupos: uno primero de control, que cursó un sistema tradicional de la asignatura en base a ejercicios de laboratorio, y un grupo experimental, que utilizó el sistema descrito en la ubicación real del proyecto. Al final del curso, y en base a los resultados obtenidos y discutidos en el presente artículo, el grupo experimental obtuvo mejores notas finales, al mismo tiempo que se constata un incremento en el grado de satisfacción y motivación de los estudiantes que han utilizado la propuesta experimental. Este aspecto nos permite reafirmar la utilidad del método en la mejora educativa en el ámbito donde se circunscribe la experiencia.info:eu-repo/semantics/publishedVersio
Areas of innovation in cities: the evolution of 22@Barcelona
No full textAreas of innovation (AOIs) are on the agenda of urban planners in the revitalisation of inner cities. The knowledge-based economy provides the opportunity to base these revitalisation efforts in creating AOIs as an evolution of the old industrial districts. Grounded in key conceptual frameworks in this research field - triple helix model, knowledge-based urban development paradigm, clusters of innovation framework, co-evolutionary theory, learning region theory and lifecycle of a new venture - as a reference, this work contributes to the existing literature by proposing a comprehensive model for the evolution of AOIs from inception to maturity. Using a case research study approach, the 22@Barcelona case, an AOI that transformed an old industrial district into a knowledge-based one, allows to analyse its evolution and to elaborate a model. Academic value stems from a new theorising effort of the evolution of AOIs. Urban planners benefit by getting additional clues in the revitalisation of cities.info:eu-repo/semantics/acceptedVersio
Research with children from a pre-service teachers’
No full textIn the globally present evidence-driven view of education, practitioners are expected to carry out more and better research. Good quality research requires good quality data, and how to obtain these data when children are involved needs to be carefully considered, especially in a Teacher Education context. The aim of this article is to identify which research strategies are mostly followed by pre-service teachers in two Education degrees at the School of Psychology, Education and Sports Sciences Blanquerna (Universitat Ramon Llull) when collecting data for their Undergraduate Dissertation. This is a longitudinal and descriptive study following a mixed approach. The main findings indicate that the active participation of children in pre-service teachers’ research is quite limited and, based on this, suggestions to improve provision are made. The final aim is to align pre-service teachers’ research practices with the educational view based on acknowledging children as capable learners.info:eu-repo/semantics/acceptedVersio
An antibody-photosensitiser bioconjugate overcomes trastuzumab resistance in HER2-positive breast cancer
No full textHER2-positive breast cancer, characterized by the overexpression of HER2 receptors, often develops resistance to trastuzumab, limiting its therapeutic efficacy. In this study, we explore the use of photodynamic therapy (PDT) with a trastuzumab-IRDye700DX photoimmunoconjugate (Tz-IR700) as a strategy to overcome trastuzumab resistance. Tz-IR700 combines the antibody's selectivity for the tumoral cells with the cytotoxic effect of IR700, induced by red light. Our results demonstrate that Tz-IR700 selectively accumulates in trastuzumab-resistant HER2-positive tumours (HCC1954) thereby enabling precise tumour localization by fluorescence imaging. Upon irradiation with red light, Tz-IR700 induces significant HCC1954 cell viability reduction both in vitro and in vivo, notably overcoming trastuzumab resistance in this HER2-positive breast cancer cell line. Mechanistic studies unequivocally demonstrate that the primary cytotoxic species is singlet oxygen. These findings suggest that Tz-IR700 could serve as a valuable treatment option for trastuzumab-resistant HER2-positive breast cancer and may also be used as an adjuvant to fluorescence-guided surgery, improving surgical outcomes and reducing the likelihood of tumour recurrence and metastasis.info:eu-repo/semantics/acceptedVersio
Reverberation time and random-incidence sound absorption measured in the audible and ultrasonic ranges with an omnidirectional parametric loudspeaker
No full textAn omnidirectional parametric loudspeaker (OPL) is a sound source that relies on the parametric acoustic array (PAA) phenomenon to generate an omnidirectional sound field. It consists of hundreds of ultrasonic piezoelectric sensors placed on a sphere, each of which emits an ultrasonic carrier wave modulated in amplitude by an audible signal. Due to non-linear propagation in air, the audible signal is demodulated, resulting in an omnidirectional sound field consisting of audible and ultrasonic waves. Earlier work has shown that the OPL is more omnidirectional than a standard dodechaedron, although it produces lower sound pressure levels especially at lower frequencies. This sound source was originally designed for room acoustics, but its application to this field remains still unexplored. This paper proposes a method to measure the reverberation time of a room with an OPL using exponential sine sweeps (ESS).
In addition, the sound absorption of material samples in a reverberation chamber is obtained. The results show that the OPL can measure these magnitudes with confidence, even though, compared to a standard dodechaedron, it has more difficulties in achieving large signal-to-noise ratios in the decay curves for the lower frequencies. The developed methodology also allows the ultrasonic frequency range to be examined. The results indicate that the ultrasonic waves do not penetrate the sample under test as they are attenuated during propagation in air.info:eu-repo/semantics/acceptedVersio