Reintegración pictórica a partir de fuentes gráficas. El Martirio de San Vicente de José Vergara de 1791: del Modelino al lienzo de la Catedral

[EN] When a work of art requiring a particular reintegration process that restores its originalsense and aesthetic comes to our hands, we must assume the responsability of carrying out that task. We must also start a search through every graphic source in order to undertake the process of pictorial reintegration. An unpusblished "modelino" wich José Vergara made as a preparation of "El Martirio de San Vicente" in The Valencia Cathedral has recently appeared in the antique market. There was also a misguised intervention to the work prepared to put it up on sale inmediately. Those two facts come with the necessity of accomplishing its restoration, under a treatement in accordance to the restoration in the academic sense of the word. In first place, we have ratified the work inclusion in Vergara's repertoire. Next, we have proceeded to the research and search of all the graphic source that have to do with the artistic production: mainly notes, sketches, or etchings by which he was inspired. These examples have allowed us to study the original aspects and the artist's real intention when it comes to make the "modelino". From this point on, we have carried out the process of simulation and retouching on samples identical to the "modelino", which have been printed with programs specialized in the image processing. In order to reintegrate the work, virtual and manual simulation have been used in an attempt at ourselves before the original work. The conclusion tha have been found open up range of possibilities regarding to how to deal with this kind of intervention[ES] Cuando llega a nuestras manos una obra que exige un proceso particular de reintegración que restituya su sentido primigenio y su estética, nos encontramos con la responsabilidad de asumir esa tarea, yde comenzar una búsqueda a través de todas y cada una de las fuentes gráficas en vistas a llevar a cabo el proceso de reintegración La reciente aparición en el mercado del anticuario de un modelino inédito que José Vergara realizó como preparación del Martirio de San Vicente de la Catedral de Valencia, y la desafortunada intervención a la que este fue sometidode forma precipitada para su inmediata venta al público, pone de relieve la necesidad de abordar su restauración, bajo tratamientos mas acordes de restauración en el sentido académico de la acepción, Y como primera tarea, hemos ratificado la atribución de la obra como parte del repertorio de Vergara. A continuación, hemos procedido a la investigación y la búsqueda de todas aquellas fuentes gráficas pertenecientes a la producción del artista, principalmente apuntes, bocetos, o grabados en los que se inspiró. Estos ejemplos nos han permitido estudiar los aspectos originales y la verdadera intención del artista a la hora de acometer el modelino. A partir de este punto, se ha llevado a cabo el proceso de simulación y de retoque sobre muestras idénticas al modelino, e impresas a través de programas especializados en el tratamiento de la imagen. Para la reintegración se han utilizado tanto la simulación virtual, como la manual, en un intento por comparar cada una de ellas y de intentar discernir cual es la mas apropiada cuando nos encontremos ante la obra original. Las conclusiones que se han tomado nos abren un grán abanico de posibilidades respecto a como enfrentarnos a este tipo de intervenciones.Escribano Bastante, P. (2013). Reintegración pictórica a partir de fuentes gráficas. El Martirio de San Vicente de José Vergara de 1791: del Modelino al lienzo de la Catedral. http://hdl.handle.net/10251/39558Archivo delegad

Study of Major-Accident Risk Assessment Techniques in the Environmental Impact Assessment Process

[EN] Design, implementation, and operation of any project are affected by the environment where it is developed; at the same time, the project will influence the environment, since during its life cycle it can cause an impact on it. This impact can lead to social, economic, and environmental results. Directive 2014/52/EU, on the assessment of the effects of certain public and private projects on the environment, reflects the obligation for the project promoter to consider, in the Environmental Impact Study (EIS) of the project, their vulnerability (exposure and resilience) to major accidents and/or disasters, evaluating both the risk and their effects on the environment, in case these major accidents and/or disasters appear. The IEC 31.010:2019 Risk management-Risk assessment techniques standard defines 45 risk appreciation techniques that are useful when analysing the risks, in general. The objective of this paper is to review these 45 techniques, and establish which ones can be used for the assessment of accidents or disasters required in the specific environmental impact assessment process to accomplish with the regulation. After the revision, the authors propose five risks appreciation techniques that could be used for the assessment of major accidents and or disasters in projects for which EIA has to be carried out.The APC was funded by Universitat Politecnica de Valencia, Spain.Fuentes Bargues, JL.; Bastante Ceca, MJ.; Ferrer-Gisbert, P.; González-Cruz, M. (2020). Study of Major-Accident Risk Assessment Techniques in the Environmental Impact Assessment Process. Sustainability. 12(14):1-16. https://doi.org/10.3390/su12145770S1161214Gimenez, C., Sierra, V., & Rodon, J. (2012). Sustainable operations: Their impact on the triple bottom line. International Journal of Production Economics, 140(1), 149-159. doi:10.1016/j.ijpe.2012.01.035Kleindorfer, P. R., Singhal, K., & Wassenhove, L. N. (2009). Sustainable Operations Management. Production and Operations Management, 14(4), 482-492. doi:10.1111/j.1937-5956.2005.tb00235.xZhang, X., Wu, Y., & Shen, L. (2015). Embedding «green» in project-based organizations: the way ahead in the construction industry? Journal of Cleaner Production, 107, 420-427. doi:10.1016/j.jclepro.2014.10.024Chofreh, A. G., Goni, F. A., Malik, M. N., Khan, H. H., & Klemeš, J. J. (2019). The imperative and research directions of sustainable project management. Journal of Cleaner Production, 238, 117810. doi:10.1016/j.jclepro.2019.117810Armenia, S., Dangelico, R. M., Nonino, F., & Pompei, A. (2019). Sustainable Project Management: A Conceptualization-Oriented Review and a Framework Proposal for Future Studies. Sustainability, 11(9), 2664. doi:10.3390/su11092664Silvius, A. J. G., & Schipper, R. P. J. (2014). Sustainability in project management: A literature review and impact analysis. Social Business, 4(1), 63-96. doi:10.1362/204440814x13948909253866Dong, N., Fu, Y., Xiong, F., Li, L., Ao, Y., & Martek, I. (2019). Sustainable Construction Project Management (SCPM) Evaluation—A Case Study of the Guangzhou Metro Line-7, PR China. Sustainability, 11(20), 5731. doi:10.3390/su11205731Gilbert Silvius, A. J., Kampinga, M., Paniagua, S., & Mooi, H. (2017). Considering sustainability in project management decision making; An investigation using Q-methodology. International Journal of Project Management, 35(6), 1133-1150. doi:10.1016/j.ijproman.2017.01.011Demidova, O., & Cherp, A. (2005). Risk assessment for improved treatment of health considerations in EIA. Environmental Impact Assessment Review, 25(4), 411-429. doi:10.1016/j.eiar.2004.09.008Zeleňáková, M., & Zvijáková, L. (2017). Risk analysis within environmental impact assessment of proposed construction activity. Environmental Impact Assessment Review, 62, 76-89. doi:10.1016/j.eiar.2016.10.003Marconi, M., Marilungo, E., Papetti, A., & Germani, M. (2017). Traceability as a means to investigate supply chain sustainability: the real case of a leather shoe supply chain. International Journal of Production Research, 55(22), 6638-6652. doi:10.1080/00207543.2017.1332437Torres-Ruiz, A., & Ravindran, A. R. (2018). Multiple criteria framework for the sustainability risk assessment of a supplier portfolio. Journal of Cleaner Production, 172, 4478-4493. doi:10.1016/j.jclepro.2017.10.304Oliveira, F. N. de, Leiras, A., & Ceryno, P. (2019). Environmental risk management in supply chains: A taxonomy, a framework and future research avenues. Journal of Cleaner Production, 232, 1257-1271. doi:10.1016/j.jclepro.2019.06.032Chen, Z., Li, H., Ren, H., Xu, Q., & Hong, J. (2011). A total environmental risk assessment model for international hub airports. International Journal of Project Management, 29(7), 856-866. doi:10.1016/j.ijproman.2011.03.004Zeleňáková, M., Labant, S., Zvijáková, L., Weiss, E., Čepelová, H., Weiss, R., … Minďaš, J. (2020). Methodology for environmental assessment of proposed activity using risk analysis. Environmental Impact Assessment Review, 80, 106333. doi:10.1016/j.eiar.2019.106333Tixier, J., Dusserre, G., Salvi, O., & Gaston, D. (2002). Review of 62 risk analysis methodologies of industrial plants. Journal of Loss Prevention in the Process Industries, 15(4), 291-303. doi:10.1016/s0950-4230(02)00008-6Marhavilas, P. K., Koulouriotis, D., & Gemeni, V. (2011). Risk analysis and assessment methodologies in the work sites: On a review, classification and comparative study of the scientific literature of the period 2000–2009. Journal of Loss Prevention in the Process Industries, 24(5), 477-523. doi:10.1016/j.jlp.2011.03.004Zheng, X., & Liu, M. (2009). An overview of accident forecasting methodologies. Journal of Loss Prevention in the Process Industries, 22(4), 484-491. doi:10.1016/j.jlp.2009.03.005Price, C. J., & Taylor, N. S. (2002). Automated multiple failure FMEA. Reliability Engineering & System Safety, 76(1), 1-10. doi:10.1016/s0951-8320(01)00136-

Green Public Procurement at a Regional Level. Case Study: The Valencia Region of Spain

[EN] Research on current practices and the state of green public procurement enables the identification of areas that can be improved, as well as opportunities to improve the tendering procedures from an environmental point of view. To understand the behaviour of local, provincial, and regional administrations concerning green public procurement, a case study on the Valencia region of Spain is made. The Valencian region is one of the most important communities in terms of population, number of contracting authorities, and weight in the Spanish Gross Domestic Product. In this study, a total of 967 procedures were analysed from calls for tenders made by municipal, provincial, and regional administrations in2016 and 2017.The results of this study show that the use of environmental criteria is 19.7% and the average weight is 4.1 out of 100. The civil engineering subsector, more than the building subsector, employs environmental criteria, particularly in projects tendered by regional administrations, whereas for projects with large budgets the level of use is similar for both subsectors. It is necessary to encourage plans to improve Green Public Procurement (GPP) practices in the Valencian administrations, especially those with a local scope such as municipalities.This research was funded by the Conselleria de Educacion, Investigacion, Cultura y Deporte of the Generalitat Valenciana through the project Analysis of the Green Public Procurement (CPV) of Works in the Valencian Community and Development of Indicators for their evaluation, grant number [GV/2017/027] of the R + D + i Projects for Emerging Research Groups 2017.Fuentes Bargues, JL.; Ferrer-Gisbert, P.; González-Cruz, M.; Bastante-Ceca, M. (2019). Green Public Procurement at a Regional Level. Case Study: The Valencia Region of Spain. International Journal of Environmental research and Public Health. 16(16):1-24. https://doi.org/10.3390/ijerph16162936S124161

Engineering Transport Orbitals in Single-Molecule Junctions

Controlling charge transport through molecules is challenging because it requires engineering of the energy of molecular orbitals involved in the transport process. While side groups are central to maintaining solubility in many molecular materials, their role in modulating charge transport through single-molecule junctions has received less attention. Here, using two break-junction techniques and computational modeling, we investigate systematically the effect of electron-donating and -withdrawing side groups on the charge transport through single molecules. By characterizing the conductance and thermopower, we demonstrate that side groups can be used to manipulate energy levels of the transport orbitals. Furthermore, we develop a novel statistical approach to model quantum transport through molecular junctions. The proposed method does not treat the electrodes’ chemical potential as a free parameter and leads to more robust prediction of electrical conductance as confirmed by our experiment. The new method is generic and can be used to predict the conductance of molecules

Public procurement of municipal works. Analysis of cemetery execution projects

[EN] The public procurement of works from the local administration includes from new projects within the scope of building subsectro: administrative and educational buildings (schools, libraries) as within the scope of civil engineering subsector: housing developments, parks and gardens, sports infrastructure and/or bike lanes. Municipal public works also include the repair, rehabilitation and maintenance of municipal infrastructures such as lighting, air conditioning, roads and sidewalks, etc., which means a wide range of types of work. In a study carried out on public procurement in the Valencian Community during the years 2016 and 2017, it was found that, after road projects (including actions on public lighting), the projects most tendered by the local administration are extensions and improvements to cemeteries, which in most cases are municipally-owned. Given this importance, at least in terms of the number of projects identified, this communication is proposed in order to carry out an analysis of cemetery execution projects, identifying their main characteristics, typologies, construction processes, aspect of the tender, etc.[ES] La contratación pública de obras desde la administración local comprende desde proyectos de nueva planta dentro del ámbito de edificación: edificios administrativos y educativos (colegios, bibliotecas), etc., como dentro del ámbito obra civil: urbanizaciones, parques y jardines, infraestructuras deportivas y/o carriles bici. Dentro de las obras públicas municipales también se encuentran los trabajos de reparación, rehabilitación y mantenimiento de las infraestructuras municipales como alumbrado, climatización, viales y aceras, etc., lo que supone un abanico muy amplio de tipologías de obra. En un estudio realizado sobre la contratación pública en la Comunidad Valenciana durante los años 2016 y 2017 se ha podido comprobar que, tras los proyectos de reparaciones de viales y calzadas (incluyendo las actuaciones sobre alumbrado público), los proyectos más licitados por la administración local son las ampliaciones y mejoras de los cementerios, los cuáles en la mayoría de los casos tienen titularidad municipal. Dada esta importancia, al menos en el número de proyectos identificados, se propone esta comunicación que tiene como objeto realizar un análisis de los proyectos de ejecución de cementerios, identificando sus principales características, tipologías, procesos constructivos, aspecto de la licitación, etc.Este trabajo surge como resultado del proyecto GV/2017/027: Análisis de la Contratación Pública Verde (CPV) de Obras en la Comunidad Valenciana y Desarrollo de Indicadores para su Evaluación, aprobado en la convocatoria de Proyectos I+D+i para Grupos de IFuentes Bargues, JL.; González-Cruz, M.; Ferrer-Gisbert, P.; Bastante-Ceca, M. (2019). La contratación pública de obras municipales. Análisis de los proyectos de ejecución de cementerios. AEIPRO. 375-385. http://hdl.handle.net/10251/181292S37538

Exploring the Impact of the HOMO–LUMO Gap on Molecular Thermoelectric Properties: A Comparative Study of Conjugated Aromatic, Quinoidal, and Donor–Acceptor Core Systems

Thermoelectric materials have garnered significant interest for their potential to efficiently convert waste heat into electrical energy at room temperature without moving parts or harmful emissions. This study investigated the impact of the HOMO–LUMO (H-L) gap on the thermoelectric properties of three distinct classes of organic compounds: conjugated aromatics (isoindigos (IIGs)), quinoidal molecules (benzodipyrrolidones (BDPs)), and donor–acceptor systems (bis­(pyrrol-2-yl)­squaraines (BPSs)). These compounds were chosen for their structural simplicity and linear π-conjugated conductance paths, which promote high electrical conductance and minimize complications from quantum interference. Single-molecule thermoelectric measurements revealed that despite their low H-L gaps, the Seebeck coefficients of these compounds remain low. The alignment of the frontier orbitals relative to the Fermi energy was found to play a crucial role in determining the Seebeck coefficients, as exemplified by the BDP compounds. Theoretical calculations support these findings and suggest that anchor group selection could further enhance the thermoelectric behavior of these types of molecules

Stabilization of white grape must by application of supercritical CO2 as a strategy to reduce the SO2 content

Winemaking worldwide, and especially the one carried out in warm climates, is looking for strategies to prevent enzymatic and microbial alterations of must and wines alternative to SO2 addition. However, there is any methodology as efficient as SO2, being used in combination with those substances in the best of cases, which does not suppose a real solution to the problem. In search of safer alternatives to preserve enological products, high-pressure treatments using supercritical CO2 can be a sustainable alternative The aim of this study is to analyze the biocidal effect, and enzymatic inactivation of supercritical CO2 on white grape must (Pedro Ximenez variety), in order to reduce SO2 in the pre-fermentative stage. It was processed by varying the main variable of the process, the percentage of CO2 (10, 40, and 70%), keeping the rest of the variables constant (100 bar, 35 ºC 10 min). Results are very promising and any of the treatment conditions seem to alter the physicochemical characteristics of must. Regarding must stabilization, this technique has proven to be very efficient in the reduction of total microorganisms, as well as reduce enzymatic activity of polyphenol oxidase, showing better results than those obtain when using SO2

Engineering transport orbitals in single-molecule junctions

Controlling charge transport through molecules is challenging because it requires engineering of the energy of molecular orbitals involved in the transport process. While side groups are central to maintaining solubility in many molecular materials, their role in modulating charge transport through single-molecule junctions has received less attention. Here, using two break-junction techniques and computational modeling, we investigate systematically the effect of electron-donating and -withdrawing side groups on the charge transport through single molecules. By characterizing the conductance and thermopower, we demonstrate that side groups can be used to manipulate energy levels of the transport orbitals. Furthermore, we develop a novel statistical approach to model quantum transport through molecular junctions. The proposed method does not treat the electrodes’ chemical potential as a free parameter and leads to more robust prediction of electrical conductance as confirmed by our experiment. The new method is generic and can be used to predict the conductance of molecules

Molecular Structure-(Thermo)electric Property Relationships in Single-Molecule Junctions and Comparisons with Single- and Multiple-Parameter Models

The most probable single-molecule conductance of each member of a series of 12 conjugated molecular wires, 6 of which contain either a ruthenium or platinum center centrally placed within the backbone, has been determined. The measurement of a small, positive Seebeck coefficient has established that transmission through these molecules takes place by tunneling through the tail of the HOMO resonance near the middle of the HOMO–LUMO gap in each case. Despite the general similarities in the molecular lengths and frontier-orbital compositions, experimental and computationally determined trends in molecular conductance values across this series cannot be satisfactorily explained in terms of commonly discussed “single-parameter” models of junction conductance. Rather, the trends in molecular conductance are better rationalized from consideration of the complete molecular junction, with conductance values well described by transport calculations carried out at the DFT level of theory, on the basis of the Landauer–Büttiker model