Antoni Muntadas. Videocreación e instalación audiovisual

En el presente ensayo se da cuenta de la importancia que tiene la obra del artista catalán Antoni Muntadas en el Arte contemporáneo. También se da un repaso por sus obras más importantes, así como de aspectos teórcos y características que las componen

Difusión en línea y preservación del documento sonoro: la fonoteca SONM

This paper is a revision of the activities undertaken by the Sound Library of Experimental Music an Sound Arts (SONM), a documentary initiative focused on the transmission and production of creative sound contents. This Project was stablished in the Puertas de Castilla Cultural Center in Murcia, Spain from the private collection of the artist and phonographist Francisco López. The virtual platform of the document storage can be seen on the internet site sonmarchive.es, it is particularly interesting because of its international extent.Se hace un repaso a las actividades emprendidas por la Fonoteca de Música Experimental y Arte Sonoro (SONM), una iniciativa documental centrada en la trasmisión y producción de contenidos sonoros creativos. Dicho proyecto se estableció en el Centro Cultural Puertas de Castilla (Murcia, España) a partir de la colección privada del artista y fonografista Francisco López. La plataforma virtualdel archivo, visible en la página electrónica sonmarchive.es, resulta de particular interés por su alcance internacional

Notas sobre el proyecto Cuadernos de Bellas Artes de la Sociedad Latina de Comunicación Social

Esta comunicación versa sobre el proyecto editorial que desde inicios de 2012 la Asociación Latina de Comunicación Social ha dado comienzo. Hablamos de la serie titulada Cuadernos de Bellas Artes, un original repertorio de publicaciones que nace con el propósito de convertirse en espacio de referencia y plataforma para la difusión de obras de calidad concernientes al arte y sus diferentes manifestaciones. Los cambios en el panorama de la transmisión del conocimiento científico nos indican el establecimiento de nuevos estándares. La tecnología digital abre extraordinarias posibilidades para la comunicación, rutas por hollar en cuya exploración nos hallamos actualmente. En este paradigma se inscribe el proyecto Cuadernos Artesanos de Bellas Artes, con especial atención a la edición virtual en un repositorio en línea, a la vez que se contempla la impresión en papel con carácter no comercial. Al lanzar la colección Cuadernos de Bellas Artes es nuestra intención proporcionar un servicio académico, una oportunidad a autores de obras ―individuales o en colaboración― de dar a conocer a través de una plataforma acreditada por una serie de indicios de calidad los resultados de sus estudios e investigaciones

After-sales services optimisation through dynamic opportunistic maintenance: a wind energy case study

After-sales maintenance services can be a very profitable source of incomes for original equipment manufacturers (OEM) due to the increasing interest of assets’ users on performance-based contracts. However, when it concerns the product value-adding process, OEM have traditionally been more focused on improving their production processes, rather than on complementing their products by offering after-sales services; consequently leading to difficulties in offering them efficiently. Furthermore, both due to the high uncertainty of the assets’ behaviour and the inherent challenges of managing the maintenance process (e.g. maintenance strategy to be followed or resources to be deployed), it is complex to make business out of the provision of after-sales services. With the aim of helping the business and maintenance decision makers at this point, this paper proposes a framework for optimising the incomes of after-sales maintenance services through: 1) implementing advanced multi-objective opportunistic maintenance strategies that sistematically consider the assets’ operational context in order to perform preventive maintenance during most favourable conditions, 2) considering the specific OEMs’ and users’ needs, and 3) assessing both internal and external uncertainties that might condition the after-sales services’ success. The developed case study for the wind energy sector demonstrates the suitability of the presented framework for optimising the after-sales services.EU Framework Programme Horizon 2020, MSCA-RISE-2014: Marie Skłodowska-Curie Research and Innovation Staff Exchange (RISE) (grant agreement number 645733- Sustain-Owner-H2020-MSCA-RISE-2014) and the EmaitekPlus 2016-2017 Program of the Basque Government

ENTREPRENEURIAL WOMEN, DIFFERENTIAL BEHAVIOURS AND BUSINESS INNOVATION

The participation of women in entrepreneurial activity forty years ago was virtually an exception. However, nowadays this is an important economic and social phenomenon, with an outstanding impact on the dynamics of both advanced and emerging economies. This is significant not only from a quantitative viewpoint. The fact that female personal features, motives and managerial methods differ from those of men gives a new and interesting perspective –which is still subject to debate- to the analysis regarding training and consolidation of enterprises. Gender-related differences can be the vehicle to introduce innovative aspects that could be influential in the uncertain and changing economic environment after the current crises, particularly in those fields where business output is related to the quality of life. Adopting a previous regional model as a basis of study, we analyse in this work the characteristics that differentiate entrepreneurial women in Spain on the grounds of data collected from an own drafted survey regarding the entrepreneurial activity (607 complete questionnaires) carried out in 2009. The results obtained indicate the coexistence of two different types of entrepreneurial women. The first group gathers those women whose enterprises show, generally speaking, a similar sectoral distribution to that of the whole productive fabric, although with a slight tendency to be more present in services activities. Their characteristics and attitudes are, in general, quite similar to those registered among entrepreneurial men and many of these women come from entrepreneurial families. The second group is mainly made up of entrepreneurial women –frequently with family burdens and low qualified- devoted to services, particularly personal services and retail trade. Technological and managerial characteristics of companies managed by the entrepreneurial women belonging to this group differ substantially from the average of the economy, with a much more traditional and less innovative profile.

Los documentos anatómicos de Leonardo da Vinci

El presente artículo ahonda en la faceta de Leonardo como anatomista. Hoy se conoce abundante documentación fruto de las pesquisas sobre las estructuras corporales que efectuó a lo largo de su vida sobre más de treinta cadáveres. Como tantos otros artistas del Renacimiento su interés en este conocimiento tenía como fin dar mayor realismo a la figura humana en las representaciones artísticas. Leonardo tenía también la ilusión de elaborar un tratado que plasmara sus observaciones detalladamente pero su carácter curioso le impidió concretar la publicación de sus numerosos bocetos, diagramas y notas con lecciones para aprendices

Model risk in the pricing of exotic options

The growth experimented in recent years in both the variety and volume of structured products implies that banks and other financial institutions have become increasingly exposed to model risk. In this article we focus on the model risk associated with the local volatility (LV) model and with the Variance Gamma (VG) model. The results show that the LV model performs better than the VG model in terms of its ability to match the market prices of European options. Nevertheless, both models are subject to significant pricing errors when compared with the stochastic volatility framework

Autophagy in plants and algae

Autophagy is a major cellular degradation pathway in which materials are delivered to the vacuole in double-membrane vesicles known as autophagosomes, broken down, and recycled (Li and Vierstra, 2012; Liu and Bassham, 2012). In photosynthetic organisms, the pathway is strongly activated by biotic and abiotic stresses, including nutrient limitation, oxidative, salt and drought stress and pathogen infection, and during senescence (Perez-Perez et al., 2012; Lv et al., 2014). Mutation of genes required for autophagy causes hypersensitivity to stress, indicating that autophagy is important for tolerance of multiple stresses. While autophagy is often non-selective, a growing number of examples of selectivity are now evident, in which specific cargos are recruited into autophagosomes via cargo receptors (Floyd et al., 2012; Li and Vierstra, 2012). In this Research Topic, a series of original research articles and reviews highlight areas of current focus in plant and algal autophagy research, including mechanisms and cargos of selective autophagy, lipid degradation, and metabolic and physiological consequences of the autophagy pathway

Autophagy is activated and involved in cell death with participation of cathepsins during stress-induced microspore embryogenesis in barley

Microspores are reprogrammed towards embryogenesis by stress. Many microspores die after this stress, limiting the efficiency of microspore embryogenesis. Autophagy is a degradation pathway that plays critical roles in stress response and cell death. In animals, cathepsins have an integral role in autophagy by degrading autophagic material; less is known in plants. Plant cathepsins are papain-like C1A cysteine proteases involved in many physiological processes, including programmed cell death. We have analysed the involvement of autophagy in cell death, in relation to cathepsin activation, during stress-induced microspore embryogenesis in Hordeum vulgare. After stress, reactive oxygen species (ROS) and cell death increased and autophagy was activated, including HvATG5 and HvATG6 up-regulation and increase of ATG5, ATG8, and autophagosomes. Concomitantly, cathepsin L/F-, B-, and H-like activities were induced, cathepsin-like genes HvPap-1 and HvPap-6 were up-regulated, and HvPap-1, HvPap-6, and HvPap-19 proteins increased and localized in the cytoplasm, resembling autophagy structures. Inhibitors of autophagy and cysteine proteases reduced cell death and promoted embryogenesis. The findings reveal a role for autophagy in stress-induced cell death during microspore embryogenesis, and the participation of cathepsins. Similar patterns of activation, expression, and localization suggest a possible connection between cathepsins and autophagy. The results open up new possibilities to enhance microspore embryogenesis efficiency with autophagy and/or cysteine protease modulators.España, MINECO AGL2014-52028-R and AGL2017-82447-