Land, Environmental Externalities and Tourism Development

In a two sectors dynamic model we analyze the process of tourism development based on the accumulation of capital (building of tourism facilities) and the reallocation of land from traditional activities to the tourism sector. The model incorporates the conflict between occupation of the territory by the tourism facilities, other productive activities and availability of cultural, natural and environmental assets that are valued by residents and visitors. We characterize the process of tourism development in two settings: the socially optimal solution and a situation where the costs of tourism expansion are external to the decision makers, where externalities on residents as well as intraindustry externalities are considered. Regarding the optimal solution, we show that it is optimal to limit tourism expansion before it reaches its maximum capacity even in a context where the economic attractiveness of tourism relative to other productive sectors rise continuously. However, in this context and when all the costs of tourism development are externalities the only limit to tourism quantitative expansion is its maximum capacity determined by the availability of land. Finally, we show that excessive environmental degradation from the future generations’ point of view is not a problem of discounting the future but rather a problem of externalities that affects negatively the current and future generations.Intertemporal land allocation, Structural economic change, Tourism industry

Towards reactive navigation and attention skills for 3D intelligent characters

This paper presents a neural design which is able to provide the necessary reactive navigation and attention skills for 3D embodied agents (virtual humanoids or characters). Based on Grossberg’s neural model of conditioning [6], as recently implemented by Chang and Gaudiando [7], and according to the Adaptative Resonance Theory (ART) and the neuroscientific concepts associated, the neural design introduced has been divided in two main phases. Firstly, an environmentcategorization phase, where an on-line pattern recognition and categorization of the current agent sensory input data is carried out by a self organizing neural network, which will finally provide the agent’s short term memory layer(STM). Secondly, and based on the classical conditioning paradigm, the model will associate the interesting STM states, from the navigation or attention points of view, to finally simulate these necessary skills for 3D characters or humanoids. Finally, we will show some experimental navigational results, through the integration of the model presented in 3D virtual environments.Partially supported by the GVA-project CTIDIB-2002-182 (Spain)

Filtro de rechazo de banda

Un filtro de rechazo de banda de frecuencias, que comprende: - en una cara superior, una línea microstrip; - en una cara inferior, al menos dos celdas resonantes, cada celda conformada por un trazado en un plano de tierra de al menos cuatro circunferencias concéntricas en una configuración de anillo con corte donde la banda de frecuencias a rechazar se determina mediante uno o más parámetros de diseño que se seleccionan entre: - Anchura de la línea microstrip - Radio de la circunferencia interior - Anchura de las dos celdas - Separación entre las dos celdas - Separación entre dos circunferencias concéntricas consecutivas - Anchura del corte en cada celda.Solicitud: 2015500640 (01.09.2015)Nº Pub. de Solicitud: ES2563247A1 (11.03.2016

Sound transmission through plates perforated with two periodic subwavelength hole arrays

Theoretical results on sound transmission through plates perforated with compound periodic hole arrays are presented. Calculations are obtained by means of a model under the rigid-solid assumption, which is thoroughly derived. A complex interplay between resonant transmission peaks, resonance interference, and Wood anomaly minima is observed. At high frequencies the resonant peaks overcome the Wood anomaly dips, leading to a different behaviour when compared with simple hole arrays. © 2011 IOP Publishing Ltd.This work has been supported by the Spanish MICINN (MAT2010-16879), Generalitat Valenciana (PROMETEO 2010/043) and Universidad Politecnica de Valencia (PAID-06-10-1839). HE acknowledges the support of CSIC-JAEpredoc scholarship.Estrada, H.; Gómez Lozano, V.; Uris Martínez, A.; Candelas Valiente, P.; Belmar Ibáñez, F.; Meseguer Rico, FJ. (2011). Sound transmission through plates perforated with two periodic subwavelength hole arrays. Journal of Physics: Condensed Matter. 23(135401). https://doi.org/10.1088/0953-8984/23/13/135401S23135401Ebbesen, T. W., Lezec, H. J., Ghaemi, H. F., Thio, T., & Wolff, P. A. (1998). Extraordinary optical transmission through sub-wavelength hole arrays. Nature, 391(6668), 667-669. doi:10.1038/35570Porto, J. A., García-Vidal, F. J., & Pendry, J. B. (1999). Transmission Resonances on Metallic Gratings with Very Narrow Slits. Physical Review Letters, 83(14), 2845-2848. doi:10.1103/physrevlett.83.2845Takakura, Y. (2001). Optical Resonance in a Narrow Slit in a Thick Metallic Screen. Physical Review Letters, 86(24), 5601-5603. doi:10.1103/physrevlett.86.5601Cao, Q., & Lalanne, P. (2002). Negative Role of Surface Plasmons in the Transmission of Metallic Gratings with Very Narrow Slits. Physical Review Letters, 88(5). doi:10.1103/physrevlett.88.057403Genet, C., & Ebbesen, T. W. (2007). Light in tiny holes. Nature, 445(7123), 39-46. doi:10.1038/nature05350Dintinger, J., Robel, I., Kamat, P. V., Genet, C., & Ebbesen, T. W. (2006). Terahertz All-Optical Molecule- Plasmon Modulation. Advanced Materials, 18(13), 1645-1648. doi:10.1002/adma.200600366Dintinger, J., Klein, S., & Ebbesen, T. W. (2006). Molecule–Surface Plasmon Interactions in Hole Arrays: Enhanced Absorption, Refractive Index Changes, and All-Optical Switching. Advanced Materials, 18(10), 1267-1270. doi:10.1002/adma.200502393García de Abajo, F. J. (2007). Colloquium: Light scattering by particle and hole arrays. Reviews of Modern Physics, 79(4), 1267-1290. doi:10.1103/revmodphys.79.1267Martín-Moreno, L., García-Vidal, F. J., Lezec, H. J., Pellerin, K. M., Thio, T., Pendry, J. B., & Ebbesen, T. W. (2001). Theory of Extraordinary Optical Transmission through Subwavelength Hole Arrays. Physical Review Letters, 86(6), 1114-1117. doi:10.1103/physrevlett.86.1114Barnes, W. L., Dereux, A., & Ebbesen, T. W. (2003). Surface plasmon subwavelength optics. Nature, 424(6950), 824-830. doi:10.1038/nature01937Javier García de Abajo, F., Estrada, H., & Meseguer, F. (2009). Diacritical study of light, electrons and sound scattering by particles and holes. New Journal of Physics, 11(9), 093013. doi:10.1088/1367-2630/11/9/093013Zhou, L., & Kriegsmann, G. A. (2007). Complete transmission through a periodically perforated rigid slab. The Journal of the Acoustical Society of America, 121(6), 3288. doi:10.1121/1.2721878Lu, M.-H., Liu, X.-K., Feng, L., Li, J., Huang, C.-P., Chen, Y.-F., … Ming, N.-B. (2007). Extraordinary Acoustic Transmission through a 1D Grating with Very Narrow Apertures. Physical Review Letters, 99(17). doi:10.1103/physrevlett.99.174301Hou, B., Mei, J., Ke, M., Wen, W., Liu, Z., Shi, J., & Sheng, P. (2007). Tuning Fabry-Perot resonances via diffraction evanescent waves. Physical Review B, 76(5). doi:10.1103/physrevb.76.054303Christensen, J., Martin-Moreno, L., & Garcia-Vidal, F. J. (2008). Theory of Resonant Acoustic Transmission through Subwavelength Apertures. Physical Review Letters, 101(1). doi:10.1103/physrevlett.101.014301Estrada, H., Candelas, P., Uris, A., Belmar, F., García de Abajo, F. J., & Meseguer, F. (2008). Extraordinary Sound Screening in Perforated Plates. Physical Review Letters, 101(8). doi:10.1103/physrevlett.101.084302Estrada, H., Candelas, P., Uris, A., Belmar, F., Meseguer, F., & García de Abajo, F. J. (2008). Influence of the hole filling fraction on the ultrasonic transmission through plates with subwavelength aperture arrays. Applied Physics Letters, 93(1), 011907. doi:10.1063/1.2955825Estrada, H., Candelas, P., Uris, A., Belmar, F., García de Abajo, F. J., & Meseguer, F. (2009). Influence of lattice symmetry on ultrasound transmission through plates with subwavelength aperture arrays. Applied Physics Letters, 95(5), 051906. doi:10.1063/1.3196330Estrada, H., García de Abajo, F. J., Candelas, P., Uris, A., Belmar, F., & Meseguer, F. (2009). Angle-Dependent Ultrasonic Transmission through Plates with Subwavelength Hole Arrays. Physical Review Letters, 102(14). doi:10.1103/physrevlett.102.144301Liu, Z., & Jin, G. (2009). Resonant acoustic transmission through compound subwavelength hole arrays: the role of phase resonances. Journal of Physics: Condensed Matter, 21(44), 445401. doi:10.1088/0953-8984/21/44/445401Estrada, H., Candelas, P., Uris, A., Belmar, F., Meseguer, F., & García de Abajo, F. J. (2011). Sound transmission through perforated plates with subwavelength hole arrays: A rigid-solid model. Wave Motion, 48(3), 235-242. doi:10.1016/j.wavemoti.2010.10.008Wood, R. W. (1902). XLII. On a remarkable case of uneven distribution of light in a diffraction grating spectrum. The London, Edinburgh, and Dublin Philosophical Magazine and Journal of Science, 4(21), 396-402. doi:10.1080/1478644020946285

A novel humid electronic nose combined with an electronic tongue for assessing deterioration of wine

We report herein the use of a combined system for the analysis of the spoilage of wine when in contact with air. The system consists of a potentiometric electronic tongue and a humid electronic nose. The potentiometric electronic tongue was built with thick-film serigraphic techniques using commercially available resistances and conductors for hybrid electronic circuits; i.e. Ag, Au, Cu, Ru, AgCl, and C. The humid electronic nose was designed in order to detect vapours that emanate from the wine and are apprehended by a moist environment. The humid nose was constructed using a piece of thin cloth sewn, damped with distilled water, forming five hollows of the right size to introduce the electrodes. In this particular case four electrodes were used for the humid electronic nose: a glass electrode, aluminium (Al), graphite and platinum (Pt) wires and an Ag-AgCl reference electrode. The humid electronic nose together with the potentiometric electronic tongue were used for the evaluation of the evolution in the course of time of wine samples. Additionally to the analysis performed by the tongue and nose, the spoilage of the wines was followed via a simple determination of the titratable (total) acidity. © 2011 Elsevier B.V.We thank the Spanish Government (project MAT2009-14564-C04) and the Generalitat Valenciana (project PROME-TEO/2009/016) for support. Luis Gil-Sanchez also thanks the Universidad Politecnica de Valencia for support (Primeros Proyectos de Investigacion - PAID-06-09) and the Generalitat Valenciana (proyectos de I+D para grupos de investigacion emergentes - 2009/8650).Gil Sánchez, L.; Soto Camino, J.; Martínez Mañez, R.; García Breijo, E.; Ibáñez Civera, FJ.; Llobet Valero, E. (2011). A novel humid electronic nose combined with an electronic tongue for assessing deterioration of wine. Sensors and Actuators A: Physical. 171(2):152-158. https://doi.org/10.1016/j.sna.2011.08.006S152158171

El tabaquismo en los pacientes de hemodiálisis. Prevalencia de consumo y actitudes

El objetivo del estudio es conocer la prevalencia y las características del hábito tabáquico en los pacientes incluidos en hemodiálisis en nuestra provincia y estudiar así mismo, algunas actitudes y conocimientos relacionadas con este hábito que nos orienten en la creación de un Plan Sanitario para la disminución del consumo de tabaco en los pacientes de diálisis

Biodiversity Assessment and Geographical Affinities of Discards in Clam Fisheries in the Atlantic–Mediterranean Transition (Northern Alboran Sea)

This study focused on the assessment and quantification of discards generated by clam fisheries along the northern Alboran Sea (western Mediterranean). Discard samples (n = 278) were collected throughout one year on board nine commercial vessels. A total of 129 species were identified, mostly represented by molluscs (72 spp.), arthropods (20 spp.) and echinoderms (12 spp.). Molluscs dominated in terms of abundance (67.5%) and biomass (94.2%). The superfamily Paguroidea (i.e. hermit crabs), together with undersized target individuals, were the most abundant taxa. The abundance and biomass of discards displayed significant maximum values in winter, which could be partly related to biotic factors including population dynamics of some dominant species. Multivariate analyses indicated the presence of different assemblages related to the targeted bivalve species, reflecting the transition between a fine surface-sands biocoenosis exposed to wave action and a well-sorted fine sands biocoenosis below 5 m depth. Analysis of biogeographical affinities showed that most discarded species (73.2%) have an extensive Atlantic range, whereas 7.1% have a restricted distribution within the Mediterranean. The presence of subtropical species highlights the uniqueness of this area (the Atlantic–Mediterranean transition) in European seas. The usefulness of discard analysis for biodiversity assessment is discussed.Postprin

Hydroxychloroquine is associated with a lower risk of polyautoimmunity: data from the RELESSER Registry

Objectives. This article estimates the frequency of polyautoimmunity and associated factors in a large retrospective cohort of patients with SLE. Methods. RELESSER (Spanish Society of Rheumatology Lupus Registry) is a nationwide multicentre, hospital-based registry of SLE patients. This is a cross-sectional study. The main variable was polyautoimmunity, which was defined as the co-occurrence of SLE and another autoimmune disease, such as autoimmune thyroiditis, RA, scleroderma, inflammatory myopathy and MCTD. We also recorded the presence of multiple autoimmune syndrome, secondary SS, secondary APS and a family history of autoimmune disease. Multiple logistic regression analysis was performed to investigate possible risk factors for polyautoimmunity. Results. Of the 3679 patients who fulfilled the criteria for SLE, 502 (13.6%) had polyautoimmunity. The most frequent types were autoimmune thyroiditis (7.9%), other systemic autoimmune diseases (6.2%), secondary SS (14.1%) and secondary APS (13.7%). Multiple autoimmune syndrome accounted for 10.2% of all cases of polyautoimmunity. A family history was recorded in 11.8%. According to the multivariate analysis, the factors associated with polyautoimmunity were female sex [odds ratio (95% CI), 1.72 (1.07, 2.72)], RP [1.63 (1.29, 2.05)], interstitial lung disease [3.35 (1.84, 6.01)], Jaccoud arthropathy [1.92 (1.40, 2.63)], anti-Ro/SSA and/or anti-La/SSB autoantibodies [2.03 (1.55, 2.67)], anti-RNP antibodies [1.48 (1.16, 1.90)], MTX [1.67 (1.26, 2.18)] and antimalarial drugs [0.50 (0.38, 0.67)]. Conclusion. Patients with SLE frequently present polyautoimmunity. We observed clinical and analytical characteristics associated with polyautoimmunity. Our finding that antimalarial drugs protected against polyautoimmunity should be verified in future studies

Creación y difusión de recursos interactivos y audiovisuales para la formación en comunicación III

Esta propuesta de Innovación Docente consiste en el desarrollo de la plataforma web https://comunicahistoria.com, que divulga material realizado por los estudiantes y que, de una manera original, creativa, rigurosa y, sobre todo, amena, favorece el aprendizaje y las competencias profesionales, despierta el interés del alumnado por las materias e impulsa la creación de contenidos relacionados con los ámbitos de la comunicación y la historia.Depto. de Periodismo y Comunicación GlobalFac. de Ciencias de la InformaciónFALSEUniversidad Complutense de Madridsubmitte