Sentidos subjetivos emergentes en una víctima del conflicto armado colombiano

The present research is of qualitative approach of interpretive cohort that allowed to assume the narrative testimony of a victim of the Colombian armed conflict in the corregimiento de Santa Isabel, César; to dig in and build from him, the subjective senses that are his own. For this, an in-depth interview was developed with one of the community leaders of the San Isabel corregimiento, he assumed this role in a scenario of resistance and in a period of high waves of social violence directed towards the civilian population of part of armed actors. Four subjective configurations are evident with their respective subjective senses: death (murder of neighbors and community members, death of the father), distrust and fear (towards institutions), social practices (family, leadership in the Communal Action Board) zozobra (in the territory). It is recognized as in adverse conditions, the subject stands to be, to be made.La presente investigación se enmarcó en un enfoque cualitativo de cohorte interpretativo que permitió asumir el testimonio narrativo de una víctima del conflicto Armado Colombiano para indagar y construir a partir de él, los sentidos subjetivos que le son propios. Por eso se orientó desde los siguientes objetivos: Conocer los sentidos subjetivos que emergen en una víctima del conflicto armado colombiano en el corregimiento de Santa Isabel, Cesar; Interpretar cómo se configuran los sentidos subjetivos que emergen en una víctima del conflicto armado en el corregimiento de Santa Isabel, Cesar. Se asumió como muestra a un habitante de sexo masculino, de veintiséis años de edad, del corregimiento Santa Isabel, César. Seleccionado por conveniencia desde dos criterios: Liderazgos al interior del corregimiento; ser víctima del conflicto interno armado colombiano. Con este habitante se desarrolló una entrevista a profundidad, utilizando como instrumento un cuestionario abierto. Se evidenciaron cuatro configuraciones subjetivas con sus respectivos sentidos subjetivos así: sobre la muerte (asesinato de vecinos y miembros de la comunidad, muerte del padre), de desconfianza y temor (hacia las instituciones) prácticas sociales (familia, liderazgo en la Junta de Acción Comunal) de zozobra (en el territorio) Los resultados permiten reconocer como la subjetividad en cuanto proceso psíquico, es devenir que se expresa de diferentes maneras y, cómo aún en condiciones adversas, el sujeto se yergue para ser, para hacerse

Subjective senses emerging in a victim of the Colombian armed conflict.

La presente investigación se enmarcó en un enfoque cualitativo de cohorte interpretativo que permitió asumir el testimonio narrativo de una víctima del conflicto Armado Colombiano para indagar y construir a partir de él, los sentidos subjetivos que le son propios. Por eso se orientó desde los siguientes objetivos: Conocer los sentidos subjetivos que emergen en una víctima del conflicto armado colombiano en el corregimiento de Santa Isabel, Cesar; Interpretar cómo se configuran los sentidos subjetivos que emergen en una víctima del conflicto armado en el corregimiento de Santa Isabel, Cesar. Se asumió como muestra a un habitante de sexo masculino, de veintiséis años de edad, del corregimiento Santa Isabel, César. Seleccionado por conveniencia desde dos criterios: Liderazgos al interior del corregimiento; ser víctima del conflicto interno armado colombiano. Con este habitante se desarrolló una entrevista a profundidad, utilizando como instrumento un cuestionario abierto. Se evidenciaron cuatro configuraciones subjetivas con sus respectivos sentidos subjetivos así: sobre la muerte (asesinato de vecinos y miembros de la comunidad, muerte del padre), de desconfianza y temor (hacia las instituciones) prácticas sociales (familia, liderazgo en la Junta de Acción Comunal) de zozobra (en el territorio) Los resultados permiten reconocer como la subjetividad en cuanto proceso psíquico, es devenir que se expresa de diferentes maneras y, cómo aún en condiciones adversas, el sujeto se yergue para ser, para hacerse.The present research is of qualitative approach of interpretive cohort that allowed to assume the narrative testimony of a victim of the Colombian armed conflict in the corregimiento de Santa Isabel, César; to dig in and build from him, the subjective senses that are his own. For this, an in-depth interview was developed with one of the community leaders of the San Isabel corregimiento, he assumed this role in a scenario of resistance and in a period of high waves of social violence directed towards the civilian population of part of armed actors. Four subjective configurations are evident with their respective subjective senses: death (murder of neighbors and community members, death of the father), distrust and fear (towards institutions), social practices (family, leadership in the Communal Action Board) zozobra (in the territory). It is recognized as in adverse conditions, the subject stands to be, to be made

Mechatronic design, experimental setup, and control architecture design of a novel 4 DoF parallel manipulator

"This is an Author's Accepted Manuscript of an article published in [include the complete citation information for the final versíon of the article as published in the Mechanics Based Design of Structures and Machines 2018 [copyright Taylor & Francis], available online at: https://www.tandfonline.com/doi/10.1080/15397734.2017.1355249."[EN] Although parallel manipulators started with the introduction of architectures with six degrees of freedom, a vast number of applications require less than six degrees of freedom. Consequently, scholars have proposed architectures with three and four degrees of freedom, but relatively few four degrees of freedom parallel manipulators have become prototypes, especially of the two rotation and two translation motion types. In this article, we explain the mechatronics design, prototype, and control architecture design of a four degrees of freedom parallel manipulators with two rotation and two translation motions. We chose to design a four degrees of freedom manipulator based on the motion needed to complete the tasks of lower limb rehabilitation. To the author's best knowledge, parallel manipulators between three and six degrees of freedom for rehabilitation of lower limb have not been proposed to date. The developed architecture enhances the three minimum degrees of freedom required by adding a four degrees of freedom, which allows combinations of normal or tangential efforts in the joints, or torque acting on the knee. We put forward the inverse and forward displacement equations, describe the prototype, perform the experimental setup, and develop the hardware and control architecture. The tracking accuracy experiments from the proposed controller show that the manipulator can accomplish the required application.The authors wish to thank the Plan Nacional de I + D, Comision Interministerial de Ciencia y Tecnologia (FEDER-CICYT) for the partial funding of this study under project DPI2013-44227-R. We also want to thank the Fondo Nacional de Ciencia, Tecnologia e Innovacion (FONACIT-Venezuela) for its financial support under the project No. 2013002165.Vallés Miquel, M.; Araujo-Gómez, P.; Mata Amela, V.; Valera Fernández, Á.; Díaz-Rodríguez, M.; Page Del Pozo, AF.; Farhat, N. (2018). Mechatronic design, experimental setup, and control architecture design of a novel 4 DoF parallel manipulator. Mechanics Based Design of Structures and Machines. 46(4):425-439. https://doi.org/10.1080/15397734.2017.1355249S425439464Araujo-Gómez, P., Díaz-Rodriguez, M., Mata, V., Valera, A., & Page, A. (2016). Design of a 3-UPS-RPU Parallel Robot for Knee Diagnosis and Rehabilitation. CISM International Centre for Mechanical Sciences, 303-310. doi:10.1007/978-3-319-33714-2_34Bruyninckx, H., Soetens, P., Issaris, P., Leuven, K. (2002). The Orocos Project. http://www.orocos.org.Cao, R., Gao, F., Zhang, Y., Pan, D., & Chen, W. (2014). A New Parameter Design Method of a 6-DOF Parallel Motion Simulator for a Given Workspace. Mechanics Based Design of Structures and Machines, 43(1), 1-18. doi:10.1080/15397734.2014.904234Carretero, J. A., Podhorodeski, R. P., Nahon, M. A., & Gosselin, C. M. (1999). Kinematic Analysis and Optimization of a New Three Degree-of-Freedom Spatial Parallel Manipulator. Journal of Mechanical Design, 122(1), 17-24. doi:10.1115/1.533542Cazalilla, J., Vallés, M., Valera, Á., Mata, V., & Díaz-Rodríguez, M. (2016). Hybrid force/position control for a 3-DOF 1T2R parallel robot: Implementation, simulations and experiments. Mechanics Based Design of Structures and Machines, 44(1-2), 16-31. doi:10.1080/15397734.2015.1030679Chablat, D., & Wenger, P. (2003). Architecture optimization of a 3-DOF translational parallel mechanism for machining applications, the orthoglide. IEEE Transactions on Robotics and Automation, 19(3), 403-410. doi:10.1109/tra.2003.810242Clavel, R. (1988). A Fast Robot with Parallel Geometry. Proc. Int. Symposium on Industrial Robots, Lausanne, Switzerland, 91–100.Díaz, I., Gil, J. J., & Sánchez, E. (2011). Lower-Limb Robotic Rehabilitation: Literature Review and Challenges. Journal of Robotics, 2011, 1-11. doi:10.1155/2011/759764Díaz-Rodríguez, M., Mata, V., Valera, Á., & Page, Á. (2010). A methodology for dynamic parameters identification of 3-DOF parallel robots in terms of relevant parameters. Mechanism and Machine Theory, 45(9), 1337-1356. doi:10.1016/j.mechmachtheory.2010.04.007Escamilla, R. F., MacLeod, T. D., Wilk, K. E., Paulos, L., & Andrews, J. R. (2012). Cruciate ligament loading during common knee rehabilitation exercises. Proceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine, 226(9), 670-680. doi:10.1177/0954411912451839Gan, D., Dai, J. S., Dias, J., Umer, R., & Seneviratne, L. (2015). Singularity-Free Workspace Aimed Optimal Design of a 2T2R Parallel Mechanism for Automated Fiber Placement. Journal of Mechanisms and Robotics, 7(4). doi:10.1115/1.4029957Garage, W. (2009). Robot Operating System. www.ros.org. Accessed date: August 2nd, 2017.Girone, M., Burdea, G., Bouzit, M., Popescu, V., & Deutsch, J. E. (2001). Autonomous Robots, 10(2), 203-212. doi:10.1023/a:1008938121020Gough, V., Whitehall, S. (1962). Universal Tyre Test Machine. Proceedings 9th Int. Technical Congress FISITA, London, vol. 117, 117–135.Jamwal, P. K., Hussain, S., & Xie, S. Q. (2013). Review on design and control aspects of ankle rehabilitation robots. Disability and Rehabilitation: Assistive Technology, 10(2), 93-101. doi:10.3109/17483107.2013.866986Lee, K.-M., & Arjunan, S. (1992). A Three Degrees of Freedom Micro-Motion In-Parallel Actuated Manipulator. Precision Sensors, Actuators and Systems, 345-374. doi:10.1007/978-94-011-1818-7_9Li, Y., & Xu, Q. (2007). Design and Development of a Medical Parallel Robot for Cardiopulmonary Resuscitation. IEEE/ASME Transactions on Mechatronics, 12(3), 265-273. doi:10.1109/tmech.2007.897257Mohan, S., Mohanta, J. K., Kurtenbach, S., Paris, J., Corves, B., & Huesing, M. (2017). Design, development and control of a 2PRP-2PPR planar parallel manipulator for lower limb rehabilitation therapies. Mechanism and Machine Theory, 112, 272-294. doi:10.1016/j.mechmachtheory.2017.03.001Ortega, R., & Spong, M. W. (1989). Adaptive motion control of rigid robots: A tutorial. Automatica, 25(6), 877-888. doi:10.1016/0005-1098(89)90054-xPierrot, F., Company, O. (1999). H4: A New Family of 4 DoF Parallel Robots. Proceedings of 1999 IEEE/ASME International Conference on Advanced Intelligent Mechatronics, Georgia, USA, 508–513.Ramsay, J. O., & Silverman, B. W. (1997). Functional Data Analysis. Springer Series in Statistics. doi:10.1007/978-1-4757-7107-7Rastegarpanah, A., Saadat, M., & Borboni, A. (2016). Parallel Robot for Lower Limb Rehabilitation Exercises. Applied Bionics and Biomechanics, 2016, 1-10. doi:10.1155/2016/8584735Stewart, D. (1965). A Platform with Six Degrees of Freedom. Proceedings of the Institution of Mechanical Engineers, 180(1), 371-386. doi:10.1243/pime_proc_1965_180_029_02Vallés, M., Cazalilla, J., Valera, Á., Mata, V., Page, Á., & Díaz-Rodríguez, M. (2015). A 3-PRS parallel manipulator for ankle rehabilitation: towards a low-cost robotic rehabilitation. Robotica, 35(10), 1939-1957. doi:10.1017/s0263574715000120Vallés, M., Díaz-Rodríguez, M., Valera, Á., Mata, V., & Page, Á. (2012). Mechatronic Development and Dynamic Control of a 3-DOF Parallel Manipulator. Mechanics Based Design of Structures and Machines, 40(4), 434-452. doi:10.1080/15397734.2012.687292Xu, W. L., Pap, J.-S., & Bronlund, J. (2008). Design of a Biologically Inspired Parallel Robot for Foods Chewing. IEEE Transactions on Industrial Electronics, 55(2), 832-841. doi:10.1109/tie.2007.909067Yoon, J., Ryu, J., & Lim, K.-B. (2006). Reconfigurable ankle rehabilitation robot for various exercises. Journal of Robotic Systems, 22(S1), S15-S33. doi:10.1002/rob.20150Zarkandi, S. (2011). Kinematics and Singularity Analysis of a Parallel Manipulator with Three Rotational and One Translational DOFs. Mechanics Based Design of Structures and Machines, 39(3), 392-407. doi:10.1080/15397734.2011.55914

Oxidative Stress, Telomere Shortening, and Apoptosis Associated to Sarcopenia and Frailty in Patients with Multimorbidity

The presence of oxidative stress, telomere shortening, and apoptosis in polypathological patients (PP) with sarcopenia and frailty remains unknown. Methods: Multicentric prospective observational study in order to assess oxidative stress markers (catalase, glutathione reductase (GR), total antioxidant capacity to reactive oxygen species (TAC-ROS), and superoxide dismutase (SOD)), absolute telomere length (aTL), and apoptosis (DNA fragmentation) in peripheral blood samples of a hospital-based population of PP. Associations of these biomarkers to sarcopenia, frailty, functional status, and 12-month mortality were analyzed. Results: Of the 444 recruited patients, 97 (21.8%), 278 (62.6%), and 80 (18%) were sarcopenic, frail, or both, respectively. Oxidative stress markers (lower TAC-ROS and higher SOD) were significantly enhanced and aTL significantly shortened in patients with sarcopenia, frailty or both syndromes. No evidence of apoptosis was detected in blood leukocytes of any of the patients. Both oxidative stress markers (GR, p = 0.04) and telomere shortening (p = 0.001) were associated to death risk and to less survival days. Conclusions: Oxidative stress markers and telomere length were enhanced and shortened, respectively, in blood samples of polypathological patients with sarcopenia and/or frailty. Both were associated to decreased survival. They could be useful in the clinical practice to assess vulnerable populations with multimorbidity and of potential interest as therapeutic targets

Cierre Data Center Global Red

En la compañía Global Red se identificó la necesidad de cerrar su Data Center chapinero de 12 años de funcionamiento por obsolescencia tecnológica y por la venta del inmueble donde está ubicado, lo cual implica la migración de los clientes existentes a un nuevo centro de datos ubicado en Chicó, apagar toda la infraestructura tecnológica y electromecánica obsoleta, además la adecuación del área donde se encontraban los equipos y la disposición final de los desechos.The Global Red company identified the need to close its 12-year-old Chapinero Data Center due to technological obsolescence and the sale of the property where it is located, which implies the migration of existing clients to a new Data Center located in boy, turn off all the obsolete technological and electromechanical infrastructure, in addition to the adaptation of the area where the equipment was located and the final disposal of the waste

Analysis of adaptive responses of Pinus pinaster to changing environmental conditions in the Mediterranean region

Recent climate evolution studies highlight the progressive temperature increase and prevalence of seasonal drought, with specially incidence in the Mediterranean region. Although conifers are very important species regarding forest conservation, sustainability and productivity, given the large forest surface they cover in Spain and their active role in preventing soil erosion and desertification, we know little about the molecular mechanisms which control adaptation in this ancient taxonomic grou

Preguntas frecuentes sobre frutales

Esta publicación contribuye solucionar las dudas de productores, técnicos y estudiantes en relación al manejo de los principales frutales del trópico Colombiano como Aguacate, cítricos, granadilla, guanábana, guayaba, mango, maracuya, piña, uchuva, mora, pitahaya y tomate de árbol

Development and Validation of an Early Mortality Risk Score for Older Patients Treated with Chemotherapy for Cancer

Background: Estimation of life expectancy in older patients is relevant to select the best treatment strategy. We aimed to develop and validate a score to predict early mortality in older patients with cancer. Patients and Methods: A total of 749 patients over 70 years starting new chemotherapy regimens were prospectively included. A prechemotherapy assessment that included sociodemographic variables, tumor/treatment variables, and geriatric assessment variables was performed. Association between these factors and early death was examined using multivariable logistic regression. Score points were assigned to each risk factor. External validation was performed on an independent cohort. Results: In the training cohort, the independent predictors of 6-month mortality were metastatic stage (OR 4.8, 95% CI [2.4-9.6]), ECOG-PS 2 (OR 2.3, 95% CI [1.1-5.2]), ADL ≤ 5 (OR 1.7, 95% CI [1.1-3.5]), serum albumin levels ≤ 3.5 g/dL (OR 3.4, 95% CI [1.7-6.6]), BMI < 23 kg/m2 (OR 2.5, 95% CI [1.3-4.9]), and hemoglobin levels < 11 g/dL (OR 2.4, 95% CI (1.2-4.7)). With these results, we built a prognostic score. The area under the ROC curve was 0.78 (95% CI, 0.73 to 0.84), and in the validation set, it was 0.73 (95% CI: 0.67-0.79). Conclusions: This simple and highly accurate tool can help physicians making decisions in elderly patients with cancer who are planned to initiate chemotherapy treatment

Experiencias psicosociales en la transición hacia la paz profunda en Colombia

El presente trabajo se propone articular una reflexión sobre algunos retos que enfrenta la investigación psicosociológica de cara al acompañamiento, soporte e inclusive orientación de los procesos y dinámicas psicosociales de construcción de paz. Se inspira en el conjunto de trabajos aquí incluidos, pero no se basa en ellos de manera exclusiva ni prioritaria; busca, más bien, ofrecer un conjunto de criterios para la reflexión crítica en un momento histórico único por las oportunidades de incidencia que se le abren, para el mejoramiento de la investigación psicosociológica. Se espera animar a su vez nuevas prácticas reflexivas que contribuyan a incrementar la relevancia y la pertinencia de este tipo de investigación, a elegir caminos fecundos tanto para la definición de programas de investigación como de decisiones curriculares cruciales para la formación avanzada de nuevas generaciones de profesionales que contribuyan en los próximos años a este fundamental reto de construcción de la paz profunda en Colombia. El libro es una contribución a las reflexiones epistemológicas, metodológicas y éticas en un momento histórico y político crucial para el país, en el que desafortunadamente no vemos aún materializarse el deseo de paz en la Colombia profunda. Pero, aún en medio de las vicisitudes y las promesas por cumplir de una paz estable y duradera, cobra sentido y mayor relevancia el saber psicosociológico.PRÓLOGO. UN LEGADO CERCANO Y COLABORATIVO. INTRODUCCIÓN. INVESTIGAR LA TRANSICIÓN DESDE LA PERSPECTIVA PSICOSOCIAL. RETOS PARA EL DISEÑO DE INVESTIGACIÓN. CAPÍTULO 1. TRANSFORMACIONES SOCIALES Y LAS LUCHAS PRESENTES DE UN TERRITORIO SOBREVIVIENTE DEL CONFLICTO ARMADO. CAPÍTULO 2. NUEVOS ESCENARIOS DE PARTICIPACIÓN POLÍTICA JUVENIL: CONSTRUYENDO PAZ A TRAVÉS DEL ARTE. CAPÍTULO 3. IDENTIDAD NARRATIVA EN PERSONAS EN PROCESO DE REINTEGRACIÓN (PPR) CAMBIOS Y PERMANENCIAS DESDE LA EXPERIENCIA DE SÍ DE DOS LIDERESAS COMUNITARIAS. CAPÍTULO 4. REPERTORIOS INTERPRETATIVOS SOBRE LA RECONCILIACIÓN DESAFÍOS EN LA IMPLEMENTACIÓN DEL ACUERDO DE PAZ. CAPÍTULO 5. POTENCIANDO LA SUBJETIVIDAD POLÍTICA DESDE UNA EXPERIENCIA DE EDUCACIÓN PARA LA PAZ.1ª ed