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Ítem Diseño de un sistema de gestión de riesgos para la compañía Microminerales S. A. S.(Universidad EAFIT, 2018) Ospina Ospina, Julián David; Giraldo Hernández, Gina María; Gómez Salazar, Elkin ArcesioThis work presents the design of a risk management system for the operating processes of the company Microminerales S. A. S. The main objective is to generate a tool to identify, qualify, evaluate and implement treatment measures and monitor the risks that exist in each process and that are linked with strategic planning. The work was referenced in accordance with the Colombian technical norm NTC-ISO 31000 and the Risicar method, regarding conceptual considerations, and the Monte Carlo simulation method was used for statistical simulations. The work seeks to obtain benefits such as: more probability to achieve the company's strategic objectives, improve management controls, improve process measurement systems, minimize losses and generate a culture of prevention to improve decision making.Ítem Microsolvation of dimethylphosphate: A molecular model for the interaction of cell membranes with water(ROYAL SOC CHEMISTRY, 2013-01-01) Ibargueen, Cesar; Manrique-Moreno, Marcela; Hadad, C. Z.; David, Jorge; Restrepo, Albeiro; Universidad EAFIT. Departamento de Ciencias Básicas; Electromagnetismo Aplicado (Gema)We present an exhaustive stochastic search of the quantum conformational spaces of the (CH3O)2PO2 - + nH 2O (n = 1,2,3) systems. We uncover structural, conformational and energetic features of the problem. As in the isolated species, clusters containing the gauche-gauche (gg) conformation of dimethylphosphate (DMP -) are energetically preferred, however, contributions from hydrated gauche-anti (ga) and anti-anti (aa) monomers cannot be neglected because such structures are quite common and because they are close in energy to those containing the gg monomer. At least seven distinct types of O?H-O-H contacts lead to DMP- ? water interactions that are always stabilizing, but not strong enough to induce significant changes in the geometries of either DMP- or water units. Our results lead us to postulate DMP- to be a suitable model to study explicit and detailed aspects of microsolvation of cell membranes. This journal is © 2013 the Owner Societies.Ítem Validation of two tools for the evaluation of changes in the attitudes of students in frequent situations in Palliative Care(Spanish Association of Anglo-American Studies, 2016-01-01) Krikorian, Alicia; Pablo Roman, Juan; Wenk, Roberto; Monti, CarolinaObjective: To determine the psychometric properties of two scales designed to examine attitudes regarding palliative care: Comfort Scale in Palliative Care (CSPC, Pereira et al.) and Tanatophobia Scale (TS, Merrill et al.) Method: Seventy-seven students who completed an online course on psychosocial aspects of palliative care offered by the Latin American Association of Palliative Care participated in the study. They also completed the scales before and after the course. Construct validity and reliability of the CSPC and the TS were assessed using a Principal Components Analysis, internal reliability coefficient and test-retest reliability. Further, comparative statistics between the pre-course and post-course results were obtained in order to determine changes in attitudes. Results: The Principal Components Analysis showed satisfactory fit to the data. 3 components were extracted: two for the CSPC and one for the TS, which explained 55.37[%] of the variance. Internal consistency coefficients were satisfactory in all cases and Cronbach’s Alphas were satisfactory for all the scales, particularly for the CSPC. Test-retest reliability in t1 and t2 was found to be non significant, indicating that measures were not related in time. Regarding pre-course/post-course comparisons, significant changes in comfort assisting patients (p = 0.004) and comfort assisting families (p = 0.001) following the course were identified, but changes in thanatophobia were non significant (p > 0.05). Conclusions: both scales are valid and reliable. Attitudes regarding the practice of palliative care and how they change, particularly regarding psychosocial issues, can be accurately measured using the examined scales. © 2016, Spanish Association of Anglo-American Studies. All rights reserved.