Urban sound quality: influence of audio-visual interactions on sound environment assessment

17 págs, 3 figuras.[EN] Some studies have proved that the perception of the environment is intersensorial. However, the studies focused on the evaluation of sound environment have been conducted without taking into account the influence of other sensorial information perceived in the environment. With the aim of analysing the incidence of the audio-visual interactions in the soundscape and how they affect the global assessment of the urban contexts, an experimental study was carried out on a sample of 313 subjects. The visual and auditory stimuli representing several urban environments were presented individually and combined. Their evaluation was made in a 7 point-scale of pleasantness. The results show that visual settings influence on the assessment of natural, technological and social sound environments. This interaction is significant and complex, depending on the pleasantness given to both visual and auditory stimuli. Results also emphasize that the global evaluation of urban environments depends on the audio-visual interactions.[ES] Diferentes estudios han comprobado que la percepción del medio es intersensorial. Sin embargo, los trabajos que analizan la respuesta de la población ante el ambiente sonoro no suelen contemplar la influencia de otras informaciones sensoriales del entorno en dicha respuesta. Con objeto de conocer la incidencia de las interacciones audiovisuales en la valoración del paisaje sonoro, así como en la evaluación global del ambiente urbano, se llevó a cabo un estudio experimental en el que participaron 313 sujetos. Los estímulos visuales y auditivos fueron presentados individualmente y combinados. Su evaluación se realizó en términos de agrado en una escala de 7 puntos. Los resultados muestran una incidencia de la imagen en la valoración de los diversos ambientes sonoros evaluados, tanto naturales como sociales y tecnológicos. Esta relación es significativa y compleja, dependiendo principalmente del nivel de agrado sentido en relación a ambos estímulos. Asimismo, se constató que la valoración global del ambiente depende de la interacción entre ambas informaciones, visuales y auditivas.Peer reviewe

Propuesta de virtualización de servidores con Hyper-V en el centro de datos de la Facultad de Ciencias Médicas de la UNAN-Managua

La importancia del crecimiento en la potencia de cómputo y la existencia de problemas relacionados con el uso del hardware, ha hecho de la virtualización la solución más idónea para resolver tales dificultades, dentro de sus propósitos se encuentran hacer uso eficiente de los recursos y disminuir el costo total asociado a los mismos. Este trabajo de investigación fue realizado con la finalidad de proponer una solución para la virtualización servidores. La virtualización es una tecnología que permite la creación de equipos, basados en software, que reproducen el ambiente de una máquina física en sus aspectos de CPU, memoria, almacenamiento y entrada y salida de dispositivos. Se limita a trabajar básicamente con Hyper-V con el fin de acotar y definir la solución de virtualización , debido a la numerosa cantidad de soluciones que existen actualmente, como lo son VMware, Cytrix, entre otros. El enfoque principal se encontrará relacionado principalmente a la virtualización de servidores, a la disposición de Hyper-V para trabajar en cluster y al tipo de cluster que se puede implementar. El objetivo general de este trabajo es entonces, proponer una solución para efectuar la virtualización ya manera explicativa se describe como trabaja un cluster de alta disponibilidad con Hyper-V para efectuar tareas de migración de maquinas virtuales, empleando técnicas propias que vienen incorporadas en el software, como Live Migration ó Quick Migration que facilitan de gran forma la gestión y administración del entorno virtual. También se describirá brevemente los detalles técnicos para la implementación del centro de datos, la disposición de las áreas funcionales, el diagrama de distribución y otros parámetros importantes a tenerse en cuenta para disponer de un centro de datos confiable

Simulation of gelled propellant doughs isothermal flow through extrusion dies using finite difference method

During the ram extrusion of gelled propellants, the possible flow instabilities can affect the extruded propellant quality. The numerical modelling helps to enhance the geometry of extrusion die, by minimizing the product distortion caused by material flow during this forming process. In the present work, a numerical model based on the finite difference method is proposed to analyze the flow simulation of double-base gelled propellant doughs through annular channels of extrusion dies. The proposed model implements the pseudo-plastic behavior described by these energetic materials. This model will be used to deduce the configuration of spider legs and annular channels that allow optimize the quality of extruded gelled propellant.The researchers acknowledge to the Spanish Ministry of Economy and Competitiveness and the European Commission their support throughout the ERDF (European Regional Development Fund) by the INNPACTO research project “Smart Propellants” (IPT-2011-0712-020000), involving EXPAL Systems S.A. and Universidad Politecnica de Cartagena (UPCT)

Neophobia and Seaweed Consumption: Effects on Consumer Attitude and Willingness to Consume Seaweed

[Abstract] Neophobia has become an increasingly researched phenomenon given its importance on the evaluation and acceptance of new products such as seaweeds, especially in a country where these products are not a part of the culinary tradition, for example, Spain. Seaweed is a form of algae, a nutritional and healthy product. Studies have investigated not only the influence of neophobia on the satisfaction and intention to consume seaweed, but also on its impact on the evaluation of the seaweed’s credence attributes such as health benefits. Previous research has concluded that consumers who are willing to consume novel products, like cooking and also demand elements of modernity and naturalness in their food. Considering this finding, a convenience sample comprising attendees of cooking workshops and young consumers was selected. Participants were evaluated about their opinion and attitude toward seaweed as food item, credibility of chefs, and the Food Neophobia Scale (FNS) prior to the tests. After the seaweed tasting, consumers were asked about their feedback and willingness to consume seaweed again. The results confirm that neophobia affects the intention to consume algae. However, consumer assessments of the credence attributes and confidence in the cues sent out by chefs regarding seaweed-based dishes are not influenced by neophobia. Hence, promotion of credence attributes such as health and natural properties of algae should be used to engage consumers potentially interested in new experiences. Simultaneously, the use of credible cues from chefs also represents an excellent way to increase consumer confidence and surpass the barrier created by neophobia

Hollow Microcrystals of Copper Hexafluoroacetylacetonate-Pyridine Derivative Adducts via Supercritical CO2 Recrystallization

An innovative crystallization process, based in the use of the eco-friendly supercritical carbon dioxide (scCO2) solvent, is presented for the production of coordination compounds macrocrystals of general formula [Cu(hfacac)2(dPy)2], with intriguing prismatic hollow structures and single polymorphic forms. On the contrary, conventional solvents yielded compact microstructures. Studied pyridine derivatives (dPy) were 4-phenylpyridine, PhPy; 4-benzylylpyridine, BzPy; and 4-acetylpyridine, AcPy. In the specific case of the [Cu(hfacac)2(AcPy)2] adduct, the use of scCO2 as a solvent allows obtaining a pure polymorph, while the conventional solvent trials yielded a mixture of two polymorphs. Four new crystalline structures have been resolved from single crystal X-ray diffraction. All the structures consist in mononuclear complexes connected through intermolecular interactions, including H···H, H···O, F···F, C-F···Caromatic and/or C-F··· interactions, generating bidimensional networks that determine their crystallization mode in scCO2.This work was partially financed by the Spanish National Plan of Research CTQ2014-56324 and Severo Ochoa SEV-2015-0496, and by the Generalitat de Catalunya 2014SGR377. A. López-Periago acknowledges the RyC-2012-11588 contract. ALBA synchrotron is acknowledged for the provision of beamtime.Peer Reviewe

Konkurentnost intelektualnog kapitala gradova pokrajine Castilla-La Mancha u usporedbi s drugim španjolskim gradovima

Intellectual capital plays a central role in smart cities. The aim of this paper is to apply the recently developed model based on intellectual capital to measure and manage cities\u27 competitiveness. This model is applied to cities in Castilla-La Mancha and another 19 Spanish cities, enabling a comparative analysis between these cities. To this end, the study presents a synthetic indicator that allows us to rank Spanish cities based on available information and propose a comprehensive management strategy that addresses both tangible and intangible competitiveness. From the results, it can be concluded that the cities of Castilla-La Mancha feature excellent human capacities and a good quality of life but that there is room for improvement in terms of city infrastructure and planning.Intelektualni kapital ima središnju ulogu u pametnim gradovima. Cilj je ovoga rada primijeniti nedavno razvijeni model utemeljen na intelektualnom kapitalu u mjerenju konkurentnosti gradova i u upravljanju njihovim materijalnim i nematerijalnim bogatstvom. Model je primijenjen u gradovima pokrajine Castilla-La Mancha i u još 19 španjolskih gradova, omogućujući njihovu usporednu analizu. U tom smislu studija je sintetički pokazatelj koji omogućuje rangiranje španjolskih gradova na temelju dostupnih podataka i predlaže sveobuhvatnu strategiju upravljanja njihovim materijalnim i nematerijalnim bogatstvima. Iz rezultata se može zaključiti da gradovi pokrajine Castilla-La Mancha imaju izvrsne ljudske resurse i dobru kvalitetu života, ali da postoji prostor za poboljšanja u pogledu gradske infrastrukture i planiranj

Export Performance in Spanish Wineries: the Role of Human Capital and Quality Management System

This version of the article has been accepted for publication, after peer review, but is not the Version of Record and does not reflect post-acceptance improvements, or any corrections. The Version of Record is available online at: https://doi.org/10.1504/EJIM.2018.091372[Abstract] The aim of this paper is to research the effect of human capital and Quality Management System (QMS) on the export performance of wine firms. The empirical analysis is carried out using data from a sample of Spanish wineries and performing Tobit regression models. In relation to human capital, the results show that only the specific human capital is associated with superior export performance of wineries whereas the general human capital although it has a positive coefficient, it is not statistically significant on the export performance of wine firms. The results related to Quality Management System show that those wine firms certified with the ISO 9000 standard of QMS have better export performanc

El estudio del estado de conservación de los ríos en la formación del futuro profesorado de educación primaria

Las prácticas son herramientas eficientes para el proceso de enseñanza-aprendizaje de las ciencias, y los ríos, elementos siempre cercanos del territorio, son un recurso de interés que esconden gran biodiversidad. Parte de esa diversidad la representan los macroinvertebrados, los cuales destacan por su fácil identificación y por ser bioindicadores del estado de conservación del río. En este trabajo se muestran los resultados obtenidos por el futuro profesorado de Primaria en la asignatura de Ciencias Naturales tras dos años de su implantación. Es una experiencia de Aprendizaje Cooperativo en la que al trabajo de campo y laboratorio se suma la redacción de un informe científico haciendo uso de las tecnologías de la información y comunicación (TIC). Los resultados obtenidos muestran el aprendizaje de contenidos y de competencias por parte del alumnado