313 research outputs found
Formative working experiences based on the use of Wikis: Competency-based learning, Edupunk, and Open Social Learning in the Spanish University. Myth and reality.
El presente trabajo pretende demostrar que es posible aplicar una tenue adecuación de las filosofías pedagógicas Edupunk y Open Social Learning a los procesos de formación universitaria en los Grados actuales. Constatamos cómo algunos rasgos de estas filosofías permiten mejorar la adecuación de las titulaciones de grado universitario a los requisitos del EEES. Sobre todo esto se da en la adquisición de competencias, el aprendizaje centrado en el alumno y el desarrollo de la formación continua o long life learning. Para ello explicaremos el desarrollo de dos experiencias basadas en el uso de Wikis como herramienta formativa a modo de ejemplo de la integración entre: b-learning, Edupunk y Open Social Learning y aprendizaje basado en competencias.This article aims to explain that is possible to apply even in a gentle way the Edupunk and the Open Social Learning educational philosophies to the university education process of the actual degrees. We find how some features of these philosophies allow improving the adaptation of the university grade titles to the European Higher Education Area requirements. Mainly this happens in skills acquisition, in studentcentred learning and in the development of the long life learning. To prove this, we will explain two working experiences based on the use of Wikis as a formative tool that serves to integrate; b-learning, Edupunk, Open Social Learning and competency-based learnin
Physics of Vibrating Airfoils at Low Reduced Frequency
The unsteady aerodynamics of low pressure turbine vibrating airfoils in flap mode is studied in detail using a frequency domain linearized Navier-Stokes solver. Both the travelling-wave and influence coefficient formulations of the problem are used to highlight key aspects of the physics and understand different trends such as the effect of reduced frequency and Mach number. The study is focused in the low-reduced frequency regime which is of paramount relevance for the design of aeronautical low-pressure turbines and compressors. It is concluded that the effect of the Mach number on the unsteady pressure phase can be neglected in first approximation and that the unsteadiness of the vibrating and adjacent airfoils is driven by vortex shedding mechanisms. Finally a simple model to estimate the work-per-cycle as a function of the reduced frequency and Mach Number is provided. The edge-wise and torsion modes are presented in less detail but it is shown that acoustic waves are essential to explain its behaviour. The non-dimensional work-per-cycle of the edge-wise mode shows a large dependence with the Mach number while in the torsion mode a large number of airfoils is needed to reconstruct the work-per-cycle departing from the influence coefficients
Aplicación de los indicadores de complejidad urbana a través de las redes sociales y TIG: El caso de los paseos marítimos de Levante y Poniente en Benidorm
La complejidad, entendida desde un punto de vista urbano y puesta en relación con la idea de conseguir ciudades más sostenibles, estudia la cantidad y diversidad de actividades que confluyen en un espacio urbano concreto. Con el fin de realizar un estudio aplicado de los indicadores de complejidad urbana en el ámbito turístico , dado el interés que este concepto tiene en relación a la mejora de la experiencia turística, se escoge la ciudad de Benidorm como ejemplo paradigmático del turismo de sol y playa en el litoral mediterráneo español. Así, se plantea el análisis de dos espacios funcionales relevantes en cuanto al turismo como son los paseos marítimos de Levante y Poniente. Como metodología se utiliza la información recogida en la red Google Places para elaborar un modelo descriptivo de la complejidad de dichas áreas y así poder comparar la complejidad funcional que configura ambos espacios. La obtención de información georreferenciada servirá para dos propósitos: en primer lugar, estudiar las pciones que existen de aplicar los indicadores urbanos elaborados para la ciudad convencional en base a los datos y; en segundo lugar, establecer una categorización que permita evaluar en qué medida existe diversidad de actividades. Los resultados obtenidos, en general, simplificarán el análisis de la complejidad urbana y, en particular, facilitarán, la toma de decisiones en cuanto a la planificación de usos turísticos
Social dynamics in cities: analysis through LBSN data
Location-Based Social Networks data —LBSN data— reveal, in essence, user preferences and patterns of use of urban space. This information plays a key role in research on social dynamics in cities. Today, social network applications are widely available and this digital data represents a complementary and inescapable source of data for the analysis of urban dynamics. Ten years ago, a handful of pioneering researchers paved the way to tackle city issues employing different types of LBSN data. The present work describes a series of case-studies that have contributed to a research methodology which, in turn, helps to unveil the traces of the city pulse lying hidden behind digital footprints. These cases exemplify how these sources help to gain a better understanding of social dynamics and can be used in urban interventions. The presented case studies were mainly data-sourced by Foursquare, Twitter, and Google Places, while other social networks such as Airbnb, Wikiloc, and Strava were used for the specific cases of tourism or sport-related topics. The case studies address urban issues based on multiscale approaches, using different LBSN datasets simultaneously in order to obtain a complex and accurate analysis, such as: a) the social dynamism at the neighborhood scale, searching for urban regeneration opportunities; b) tourism-related urban dynamics, both at the local and city scale, with a high granularity; c) user presence and preferences when assessing the city green infrastructure system; and, d) tracking informal sport activity in the urban periphery, connecting urban tissues and natural assets on the city borders
Big Love: el travelling lícito
En este artúculo se analiza la serie de televión de HBO “Big Love”, la enunciación no puede
ser sino irónica, pues presenta la familia,
el amor, la responsabilidad, el trabajo
y una serie de valores privilegiados
en Norteamérica con una rigurosa
cotidianidad que se detiene en los guiños
para el espectador, metáforas entre
lo absurdo y el sentido común que
afila los límites entre lo ordinario y lo
extraordinario. Se destituye el ideal de
amor concebido en su exclusividad y
llevado hacia la diferencia. En Big Love es fundamental el uso semántico del travelling frente a la dialéctica clásica
de plano-contraplano.This article analyses the HBO television series “Big Love”. The title is undoubtedly
used ironically, since it presents the family, love, responsibility, work and a series of privileged
values in North America with a rigorous sense of everydayness that makes numerous nods to
the viewer: metaphors that fall mid-way between the absurd and common sense and which
sharpen the limits between the ordinary and the extraordinary. The ideal conception of love as
an exclusive, differentiating experience is dismissed. In Big Love the semantic use of travelling
shots is essential, as opposed to the classic dialectics of the shot-reverse shot.El presente trabajo ha sido realizado con la ayuda del Proyecto de Investigación “Nuevas Tendencias e hibridaciones de los discursos audiovisuales contemporáneos”, financiado por la convocatoria del Plan Nacional de I+D+i del Ministerio de Ciencia e Innovación, para el periodo 2008-2011, con código CSO2008-00606/SOCI, bajo la dirección del Dr. Javier Marzal Felici
Urban Transformation, Public Space and Social Perception. The River Segura as it Passes Through Orihuela and Rojales
El río Segura en su tramo final, la Vega Baja en la provincia de Alicante, atraviesa las ciudades de Orihuela y Rojales, que se caracterizan por ser las dos únicas de esta zona en las que el cauce recorre su casco urbano. Se parte de las obras de remodelación del cauce con el Plan de Defensa contra Avenidas en la Cuenca del Río Segura, concluido en 1994, en el que la solución adoptada para el encauzamiento en los tramos urbanos es similar en ambos municipios. Esta investigación expone en qué medida dichas actuaciones han tenido un refl ejo directo en la imagen de la ciudad, en las actividades en el espacio público urbano y en la manera que es percibido por los ciudadanos. Finalmente, se ponen en evidencia resultados coincidentes y divergentes, pese a la similitud del contexto de las actuaciones.The final part of the Segura River’s course flows through the region of the Vega Baja in the province of Alicante. In this area, the river crosses the town centre of Orihuela and Rojales, the only two cities with this condition. In 1994, works of redesign of the route of the Segura River were finished. The aim of these works was to improve the security and protection against flooding. In both cases the channel was re-built following the same constructive solution. This research exposes the way these measures have had a direct impact on the image of these cities, in urban public space activities and in the manner that these interventions were perceived by citizens. Despite the similar context, the results of the research show coincidences and differences between the two cities.El presente texto se incardina en el proyecto de investigación Las ciudades españolas en la etapa autonómica (1978-2012). Dinámicas, procesos y políticas (URBSPAIN), financiado por el Plan Nacional de Investigación I+D+i del Ministerio de Economía y Competitividad para el período 2010-2013 (Código CSO 2009-11261-Subpr. GEOG)
Scoping out urban areas of tourist interest though geolocated social media data: Bucharest as a case study
Social media data has frequently sourced research on topics such as traveller planning or the factors that influence travel decisions. The literature on the location of tourist activities, however, is scarce. The studies in this line that do exist focus mainly on identifying points of interest and rarely on the urban areas that attract tourists. Specifically, as acknowledged in the literature, tourist attractions produce major imbalances with respect to adjacent urban areas. The present study aims to fill this research gap by addressing a twofold objective. The first was to design a methodology allowing to identify the preferred tourist areas based on concentrations of places and activities. The tourist area was delimited using Instasights heatmaps information and the areas of interest were identified by linking data from the location-based social network Foursquare to TripAdvisor’s database. The second objective was to delimit areas of interest based on users’ existing urban dynamics. The method provides a thorough understanding of functional diversity and the location of a city’s different functions. In this way, it contributes to a better understanding of the spatial distribution imbalances of tourist activities. Tourist areas of interest were revealed via the identification of users’ preferences and experiences. A novel methodology was thus created that can be used in the design of future tourism strategies or, indeed, in urban planning. The city of Bucharest, Romania, was taken as a case study to develop this exploratory research.Open Access funding provided thanks to the CRUE-CSIC agreement with Springer Nature. This research has been partially funded by the Valencian Conselleria de Innovación, Universidades, Ciencia y Sociedad Digital, Generalitat Valenciana and the European Social Fund (ACIF/2020/173); and by the University of Alicante—Vicerrectorado de Investigación (GRE 21-15)
Nuevas oportunidades para la docencia del Urbanismo: hacia un consumo inteligente de la información
De entre los principales retos que plantea la docencia universitaria actual, destaca el de avanzar hacia modelos docentes centrados en el estudiante, capaces de desarrollar y conducir su aprendizaje de forma autónoma (tutorizada) tanto en las actividades presenciales como en las no presenciales. En este sentido, la posibilidad de operar con grandes bases de datos georeferenciadas de libre acceso supone un magnífico potencial para la investigación y la docencia del Urbanismo. Por ello, intervenir como guías en el proceso de comprensión y empleo de los datos a gran escala, es uno de los principales desafíos actuales de los docentes de las asignaturas de Urbanismo. Este artículo tiene por objeto explicar la experiencia desarrollada en la Universidad de Alicante (UA), con el propósito de iniciar al alumnado en el consumo inteligente de la información, para llevar a cabo sus propios análisis y obtener sus propias interpretaciones. El trabajo muestra los métodos y herramientas empleadas para tal fin, que permiten acercarse a nuevas formas dinámicas de relación con el conocimiento, a nuevas prácticas educativas activas y, sobre todo, a la creación de una nueva conciencia social más consciente y acorde con el mundo que habitamos
The Role of Sphingolipids Metabolism in Cancer Drug Resistance
Acid ceramidase (AC); Glucosylceramide synthase (GCS); ShingolipidsCeramidasa ácida (AC); Glucosilceramida sintasa (GCS); EsfingolípidosCeramidasa àcida (AC); Glucosilceramida sintasa (GCS); EsfingolípidsDrug resistance continues to be one of the major challenges to cure cancer. As research in this field evolves, it has been proposed that numerous bioactive molecules might be involved in the resistance of cancer cells to certain chemotherapeutics. One well-known group of lipids that play a major role in drug resistance are the sphingolipids. Sphingolipids are essential components of the lipid raft domains of the plasma membrane and this structural function is important for apoptosis and/or cell proliferation. Dysregulation of sphingolipids, including ceramide, sphingomyelin or sphingosine 1-phosphate, has been linked to drug resistance in different types of cancer, including breast, melanoma or colon cancer. Sphingolipid metabolism is complex, involving several lipid catabolism with the participation of key enzymes such as glucosylceramide synthase (GCS) and sphingosine kinase 1 (SPHK1). With an overview of the latest available data on this topic and its implications in cancer therapy, this review focuses on the main enzymes implicated in sphingolipids metabolism and their intermediate metabolites involved in cancer drug resistance.We thank Teresa Moline and Rosa Somoza from the VHIR. This work was supported by grants from the Instituto de Salud Carlos III (ISCIII; PI20/00556 and CP03/00101 [ML]) and CIBERONC (ML). This work was also co-financed by the European Regional Fund (ERDF) and AECC (Spanish Association of Cancer Research) (Founding Ref. GC16173720CARR [ML]). YG-M, CM, and AS-G were supported by the VHIR, iP-FIS (ISCIII) and VHIR fellowships, respectively
Green infrastructure planning: Unveiling meaningful spaces through Foursquare users’ preferences
The design of efficient Green Infrastructure —GI— systems is a key issue to achieve sustainable development city planning goals in the twenty-first century. This study’s main contribution is the identification of potential GI elements to better align the environmental, social and economic perspectives in the GI design by including information about the use, activities, preferences and presence of people. To achieve this, user generated content from Location Based Social Network —LBSN— Foursquare is used as a complementary data source. This involved the construction of an interdisciplinary correlation framework, between the Landscape Ecology principles and the GI elements, that included the classification of Foursquare data into grouping types. The classification considered the potential role of Foursquare venues in the GI network. Valencia City in Spain served as an illustrative case study to test the validity of the proposed method. The results suggest that Foursquare can provide a valuable insight on user perceptions of potential GI elements. Moreover, the findings indicate that user generated content from LBSNs like Foursquare can serve as a complementary tool for analysing the dynamics of urban outdoor spaces to assess GI network, thereby facilitating more effective urban planning and contributing to the social sustainability of the city.This research was funded by the Vice-rectorate of Research and Knowledge Transfer of the University of Alicante (Spain), in the context of the Program for the promotion of R&D&I. This work was developed within the scope of the research project entitled: "[LIVELYCITY] Interdisciplinary methods for the study of the city through geolocated social networks", reference GRE18-19
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