2,804 research outputs found
The limits of low-cost cinema in Spain: an analysis of the #Littlesecretfilm movement
This is an Author's Original Manuscript of an Article whose final and definitive form, the Version of Record, has been published in the Creative Industries Journal, 2020, 13:1, available online at: https://doi.org/10.1080/17510694.2019.1652024The self-styled #Littlesecretfilm phenomenon is a low-cost film production and distribution movement that was launched in Spain in 2013. Based on a reconstruction and examination of its development from its foundation (with the publication of a manifesto in the form of ten commandments) through to its products (a full survey of which are presented here), this article offers a meaningful and not entirely uncritical snapshot of a conscious proposal of a low-cost production model in contemporary Spain. In our conclusion, we tie this film movement in with international debates about the viability of a low-cost approach in the context of a national film industry that has been left badly battered by the financial crisis that began in 2008
Comparison between nested grids and unstructured grids for a high-resolution wave forecasting system in the western Mediterranean sea
This is an Accepted Manuscript of an article published by Taylor & Francis Group in Journal of Operational Oceanography on 2017, available online at: http://www.tandfonline.com/10.1080/1755876X.2016.1260389Traditionally wave modelling uses a downscaling process by means of successive nested grids to obtain high-resolution wave fields near the coast. This supposes an uncertain error due to internal boundary conditions and a long computational time. Unstructured grids avoid multiple meshes and thus the problem of internal boundary conditions. In the present study high resolution wave simulations are analysed for a full year where high-resolution meteorological models were available in the Catalan coast. This coastal case presents sharp gradients in bathymetry and orography and therefore correspondingly sharp variations in the wind and wave fields. Simulations with SWAN v.4091A using a traditional nested sequence and a regional unstructured grid have been compared. Also a local unstructured grid nested in an operational forecast system is included in the analysis. The obtained simulations are compared to wave observations from buoys near the coast; almost no differences are found between the unstructured grids and the regular grids. Simultaneously, tests have been carried out in order to analyse the computational time required for each of the alternatives, showing a decrease to less than half the time when working with regional unstructured grids and maintaining the forecast accuracy and coastal resolution with respect to the downscaling system.Peer ReviewedPostprint (author's final draft
Referentes deontológicos y autorreguladores en la información en una televisión pública. El ejemplo de rtva
Los medios de comunicación han desarrollado sistemas de control sobre los informadores, para que su ejercicio se adecue a la ley y a otros criterios empresariales o profesionales.
En el caso de la televisión, las empresas privadas se suelen remitir a la legislación y a directrices internas; pero las compañías públicas tienen otros filtros para garantizar el desarrollo respetuoso de la información. Podemos establecer cinco niveles: Externo: Parlamentos, Consejos Audiovisuales, Defensor del Pueblo. Orgánico: Consejo de Administración. Defensor de la Audiencia. Interno: Libros de Estilo, normas de la Dirección. Profesional: Consejos de Redacción, criterios de edición Personal: la valoración individualThe media have developed control systems for journalists, to obey the law and other business or professional criteria. About television, the private media companies are generally referred to legislation and internal guidelines, but public companies has more filters to ensure the development with respect of the information. We set five levels:
External: Parliament, Council Audiovisual, Ombudsman. Organic: Board of Directors. Audience´s Ombudsmen. Internal: Style Guides, Rules of Management. Professional: Editorial Boards, editing criteria Personal: individual assessmen
Efectos del estrés oxidativo en la retina
La absorción de la luz por las células de la retina produce reacciones fotoquímicas que dan lugar a las especies reactivas de oxígeno y a radicales libres que crean un nivel de estrés oxidativo alto. Se planteó este trabajo de revisión bibliográfica para actualizar los conocimientos sobre el estrés oxidativo y su relación con patologías de la retina en los últimos 20 años. El concepto del estrés oxidativo está relacionado con el desequilibrio entre moléculas oxidantes y antioxidantes, los radicales libres, la generación de especies reactivas de oxígeno mediante la reducción del oxígeno y los antioxidantes. Afecta a las funciones celulares en lípidos, proteínas y ADN. En las estructuras del ojo, afecta a la córnea, el cristalino, el humor acuoso, el humor vítreo, la conjuntiva, la lágrima y de forma principal a la retina. Se revisaron los efectos histopatológicos del estrés oxidativo en las capas de la retina de las cuales el epitelio pigmentario de la retina, la capa de los fotorreceptores y la capa de las células ganglionares, fueron las capas con mayor número de artículos encontrados. Po último, se revisó en que enfermedades está involucrado el estrés oxidativo, comprobando que lo está en la degenaración macular asociado a la edad, la retinopatía diabética y el glaucoma. Con este trabajo se ha comprobado que el estrés oxidativo en la retina como desencadenante de patología es un tema de estudio muy actual.Grado en Óptica y Optometrí
Fuentes documentales para la historia del control administrativo de la representación de obras teatrales (1939-1985)
Quid Pro Quo: A Mechanism for Fair Collaboration in Networked Systems
Collaboration may be understood as the execution of coordinated tasks (in the
most general sense) by groups of users, who cooperate for achieving a common
goal. Collaboration is a fundamental assumption and requirement for the correct
operation of many communication systems. The main challenge when creating
collaborative systems in a decentralized manner is dealing with the fact that
users may behave in selfish ways, trying to obtain the benefits of the tasks
but without participating in their execution. In this context, Game Theory has
been instrumental to model collaborative systems and the task allocation
problem, and to design mechanisms for optimal allocation of tasks. In this
paper, we revise the classical assumptions and propose a new approach to this
problem. First, we establish a system model based on heterogenous nodes (users,
players), and propose a basic distributed mechanism so that, when a new task
appears, it is assigned to the most suitable node. The classical technique for
compensating a node that executes a task is the use of payments (which in most
networks are hard or impossible to implement). Instead, we propose a
distributed mechanism for the optimal allocation of tasks without payments. We
prove this mechanism to be robust event in the presence of independent selfish
or rationally limited players. Additionally, our model is based on very weak
assumptions, which makes the proposed mechanisms susceptible to be implemented
in networked systems (e.g., the Internet).Comment: 23 pages, 5 figures, 3 algorithm
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