Disability as a Driving Force of Sustainable Business Models in the Fourth Sector

[EN] We are living in unprecedented times in which sustainability is essential to economic growth, quality of life and national stability. In this context, Solidaridad y Trabajo Virgen del Camino (SOLTRA) emerges as an example of a firm in the fourth sector that has achieved the triple bottom line of sustainability: economic, social and environmental performance. Although SOLTRA’s current efforts are mainly focused on the social sphere through the recruitment and integration of people with disabilities into the company and, consequently, into the labour market and society, it also pursues environmental and economic objectives. In the present study, we analysed SOLTRA’s business model by applying the theory of planned behaviour and the resource-based view of the firm. The information derived from in-depth interviews with SOLTRA’s CEO and top managers from the operations and human resources departments, as well as public financial and social reports, allowed us to identify the cornerstones of its business model. The model is based on incremental technology, holistic behaviour and the integration of social activities that help identify better business opportunities. In this study, several implications for managers, policymakers and citizens are provided. These findings may contribute to the development of managerial practices that can help companies to achieve better outcomes by using new approaches to solving social and environmental problems and identifying new opportunities for vulnerable citizens

From the Ciutat de Repòs to the Ciudades Sindicales de Vacaciones: seaside Vacation City for Workers in Marbella. The present of modern leisure heritage

The Ciudad Sindical de Vacaciones [Vacation City for Workers] (VCW) constitutes a reference of leisure architecture in Spain during the Franco regime. Starting with a literature review and the process of its cataloguing and protection, the focus lies on the last of these structures ever to be implemented, built in Marbella and the only one still in use. It, then, traces the evolution in Spanish spatial formalization of workers rest, from the urban modern vocation of the GATEPAC (Group of Spanish Artists and Technicians for Contemporary Architecture, 1930–1936) proposals during the Second Republic, to the Vacation Cities for Workers of the dictatorship, idealised as islands in privileged enclaves. Finally, reflections on transformations underwent in the VCW of Marbella, in the context of its heritage value, will be made

El consultorio contable empresarial de hoy

Este artículo representa el compromiso fundamental de toda institución académica, de propiciar que todo estudiante tenga un espacio para realizar sus prácticas, de tal forma que tenga un buen desempeño en su vida laboral. Es tan importante esta responsabilidad, que la Ley 30 de 1992 en su Artículo 6, lo señala como uno de sus objetivos al establecer que: Profundizar en la formación integral de los colombianos, dentro de las modalidades y calidades de la educación superior, capacitándolos para cumplir las funciones profesionales, investigativas y de servicio social que requiere el país; con lo anterior, se buscan espacios pedagógicos, que ya han sido desarrollados por otras instituciones del país, que apuntan al fortalecimiento de la preparación académica de los estudiantes de Contaduría Pública, denominado “Consultorio Contable” cuya esencia radica en que los estudiantes confronten sus conocimientos teóricos con la práctica, enfrentándose a situaciones reales del quehacer profesional.This article represents the fundamental commitment of the entire academic institution, of enabling every student to have a space for their practices, by having a good performance in their working life, this responsibility is so important to create teaching spaces, which have already been developed by other institutions in the country, aimed at strengthening the academic preparation of students in public accounting, known as” Clinic Accounting “whose essence is that the students confront their theoretical knowledge with practice, confronting real situations of the profession. that the Law No. 30 of 1992 Article 6, states as one of its objectives by providing that: To deepen the comprehensive education of Colombians, within the modalities and quality of higher education, enabling them to undertake the tasks of practitioners, researchers and social service needed in the Country; with the above, we ai

Magnetic light and forbidden photochemistry: the case of singlet oxygen

[EN] Most optical processes occurring in nature are based on the well-known selection rules for opticaltransitions between electronic levels of atoms, molecules, and solids. Since in most situations themagnetic component of light has a negligible contribution, the dipolar electric approximation isgenerally assumed. However, this traditional understanding is challenged by nanostructured materials,which interact strongly with light and produce very large enhancements of the magnetic field in theirsurroundings. Here we report on the magnetic response of different metallic nanostructures and theirinfluence on the spectroscopy of molecular oxygen, a paradigmatic example of dipole-forbidden optical transitions in photochemistryA. M. acknowledge support from U. S. National Science Foundation (Grant ECCS-1710697). The authors acknowledge the financial support from the following projects: CTQ2014-61671-EXP, MAT2015-69669-P, and PrometeoII/2017/026. We would also like to acknowledge the UNM Center for Advanced Research Computing (CARC) for the computational resources used in this work.Manjavacas, A.; Fenollosa Esteve, R.; Rodriguez, I.; Jiménez Molero, MC.; Miranda Alonso, MÁ.; Meseguer Rico, FJ. (2017). Magnetic light and forbidden photochemistry: the case of singlet oxygen. Journal of Materials Chemistry C. 5(45):11824-11831. https://doi.org/10.1039/c7tc04130fS1182411831545N. Turro ; V.Ramamurthy and J.Scaiano , Principles of Molecular Photochemistry: An Introduction , University Science Books , 2009Barron, L. D., & Gray, C. G. (1973). The multipole interaction Hamiltonian for time dependent fields. Journal of Physics A: Mathematical, Nuclear and General, 6(1), 59-61. doi:10.1088/0305-4470/6/1/006D. Craig and T.Thirunamachandran , Molecular Quantum Electrodynamics: An Introduction to Radiation-molecule Interactions , Dover Books on Chemistry Series, Dover Publications , 1984S. A. 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Tailoring Surface Plasmons through the Morphology and Assembly of Metal Nanoparticles. Langmuir, 22(1), 32-41. doi:10.1021/la0513353Funston, A. M., Novo, C., Davis, T. J., & Mulvaney, P. (2009). Plasmon Coupling of Gold Nanorods at Short Distances and in Different Geometries. Nano Letters, 9(4), 1651-1658. doi:10.1021/nl900034vFan, J. A., Wu, C., Bao, K., Bao, J., Bardhan, R., Halas, N. J., … Capasso, F. (2010). Self-Assembled Plasmonic Nanoparticle Clusters. Science, 328(5982), 1135-1138. doi:10.1126/science.1187949Linden, S., Enkrich, C., Dolling, G., Klein, M. W., Zhou, J., Koschny, T., … Wegener, M. (2006). Photonic Metamaterials: Magnetism at Optical Frequencies. IEEE Journal of Selected Topics in Quantum Electronics, 12(6), 1097-1105. doi:10.1109/jstqe.2006.880600Husnik, M., Klein, M. W., Feth, N., König, M., Niegemann, J., Busch, K., … Wegener, M. (2008). Absolute extinction cross-section of individual magnetic split-ring resonators. Nature Photonics, 2(10), 614-617. doi:10.1038/nphoton.2008.181Boudarham, G., Feth, N., Myroshnychenko, V., Linden, S., García de Abajo, J., Wegener, M., & Kociak, M. (2010). Spectral Imaging of Individual Split-Ring Resonators. Physical Review Letters, 105(25). doi:10.1103/physrevlett.105.255501Banzer, P., Peschel, U., Quabis, S., & Leuchs, G. (2010). On the experimental investigation of the electric and magnetic response of a single nano-structure. Optics Express, 18(10), 10905. doi:10.1364/oe.18.010905Popa, B.-I., & Cummer, S. A. (2008). Compact Dielectric Particles as a Building Block for Low-Loss Magnetic Metamaterials. Physical Review Letters, 100(20). doi:10.1103/physrevlett.100.207401Zhao, Q., Zhou, J., Zhang, F., & Lippens, D. (2009). Mie resonance-based dielectric metamaterials. Materials Today, 12(12), 60-69. doi:10.1016/s1369-7021(09)70318-9Shi, L., Tuzer, T. U., Fenollosa, R., & Meseguer, F. (2012). A New Dielectric Metamaterial Building Block with a Strong Magnetic Response in the Sub-1.5-Micrometer Region: Silicon Colloid Nanocavities. Advanced Materials, 24(44), 5934-5938. doi:10.1002/adma.201201987Kuznetsov, A. I., Miroshnichenko, A. E., Fu, Y. H., Zhang, J., & Luk’yanchuk, B. (2012). Magnetic light. Scientific Reports, 2(1). doi:10.1038/srep00492Evlyukhin, A. B., Novikov, S. M., Zywietz, U., Eriksen, R. L., Reinhardt, C., Bozhevolnyi, S. I., & Chichkov, B. N. (2012). Demonstration of Magnetic Dipole Resonances of Dielectric Nanospheres in the Visible Region. Nano Letters, 12(7), 3749-3755. doi:10.1021/nl301594sRolly, B., Bebey, B., Bidault, S., Stout, B., & Bonod, N. (2012). Promoting magnetic dipolar transition in trivalent lanthanide ions with lossless Mie resonances. Physical Review B, 85(24). doi:10.1103/physrevb.85.245432Albella, P., Poyli, M. A., Schmidt, M. K., Maier, S. A., Moreno, F., Sáenz, J. J., & Aizpurua, J. (2013). 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Mapping Heritage: Geospatial Online Databases of Historic Roads. The Case of the N-340 Roadway Corridor on the Spanish Mediterranean

The study has developed an online geospatial database for assessing the complexity of roadway heritage, overcoming the limitations of traditional heritage catalogues and databases: the itemization of heritage assets and the rigidity of the database structure. Reflecting the current openness in the field of heritage studies, the research proposes an interdisciplinary approach that reframes heritage databases, both conceptually and technologically. Territorial scale is key for heritage interpretation, the complex characteristics of each type of heritage, and social appropriation. The system is based on an open-source content-management system and framework called ProcessWire, allowing flexibility in the definition of data fields and serving as an internal working tool for research collaboration. Accessibility, flexibility, and ease of use do not preclude rigor: the database works in conjunction with a GIS (Geographic Information System) support system and is complemented by a bibliographical archive. A hierarchical multiscalar heritage characterization has been implemented in order to include the different territorial scales and to facilitate the creation of itineraries. Having attained the main goals of conceptual heritage coherence, accessibility, and rigor, the database should strive for broader capacity to integrate GIS information and stimulate public participation, a step toward controlled crowdsourcing and collaborative heritage characterization.Consejería de Obras Públicas y Transportes, Junta de Andalucí

Consultorio contable, una estrategia pedagógica para el fortalecimiento de la formación del estudiante del programa de Contaduría Pública de la Corporación Universitaria de la Costa. CUC

Diseñar un Consultorio Contable como estrategia pedagógica para el programa de Contaduría Pública de la CUC, que permita desarrollar en los estudiantes habilidades, destrezas y conocimientos prácticos que apunten a su formación integral y que impulse en la institución, el proceso investigativo, proyectando el programa a la comunidad. Metodología. Se empleó el Paradigma Cualitativo de tipo Sociocrítico y el tipo de Investigación fue el Etnográfico. Resultados: Se obtuvo el diseño de un consultorio Contable para ser implementado en el programa de Contaduría Pública de la Corporación Universitaria de la Costa CUC, el cual se plasmó en un plan de acción que consta de dos fases: la motivación y la ejecución. Conclusiones Se concluye que, a la falta de un Consultorio Contable, priva a los estudiantes de la oportunidad de desarrollar competencias laborales. Situación ésta de elevada gravedad, en razón a que los estudiantes de Contaduría requieren de una buena dosis de prácticas. De igual forma los resultados develan las falencias que presenta el programa en materia de investigación. Se pudo establecer, además, que la institución proyecta el programa de contaduría Pública a la comunidad a través de las prácticas empresariales. En este sentido, se requiere que el programa cumpla una permanente y eficiente función social, interactuando con el sector empresarial, ofreciendo los servicios de asesoría y consultorías contables, a través de este medio; pero al mismo tiempo formando y capacitando una generación de contadores con elevados.To design a Countable Office as pedagogic strategy for the program of Public Accounting of the CUC, which allows to develop in the students skills, workmanship and practical knowledge that point at its integral formation and that it impels in the institution, the process investigativo, projecting the program to the community. Methodology. The Qualitative Paradigm of type Sociocrítico was used and the type of Investigation was the Ethnographic one. Results: There was obtained the design of a Countable office to be implemented in the program of Public Accounting of the University Corporation of the Coast CUC, which took shape of a plan of action that consists of two phases: the motivation and the execution. Conclusiones Se concludes that, to the absence of a Countable Office, it forbids the students of the opportunity to develop labor competences. Situation this one of high gravity, in reason to which the Accounting students need of a good practices dose. In the same way the results develan the bankruptcies that the program presents on the subject of investigation. It was possible to establish, also, that the institution projects the program of Public accounting to the community across the managerial practices. In this sense, it is needed that the program fulfills a permanent and efficient social function, interacting with the managerial sector, offering the services of consultancy and countable consultancies, across this way; but at the same time forming and qualifying a generation of meters with raised

ALGORITMO GENÉTICO PARA OPTIMIZAR LAS GANANCIAS DE UN CONTROLADOR PI EN UN MOTOR DE CD

ResumenEste artículo presenta el diseño de un algoritmo genético (AG) para la optimización de las ganancias de un controlador PI para aplicaciones de control de un motor de CD. A diferencia de los AGs existentes en la literatura, el AG propuesto utiliza como variables de interés el tiempo de asentamiento y el sobreimpulso.  La implementación del sistema incluye pruebas de laboratorio con un motor de corriente directa de 1 HP y un sistema de torque controlado.Palabra(s) Clave: Algoritmo genético, Controlador PI, Motor de CD. GENETIC ALGORITHM TO OPTIMIZE THE GAINS OF A PI CONTROLLER IN A CD ENGINE AbstractThis paper presents the design of a Genetic Algorithm (AG) for the optimization of the gains of a PI controller for control applications of a CD motor. In contrast to the AGs in the literature, the proposed AG uses settlement time and overshoot as variables of interest. The system implementation includes lab tests with a 1 HP direct current motor and a torque controlled system.Keywords: DC motor Genetic algorithm, PI controller