App’s como herramientas pedagógicas para el proceso de Enseñanza-Aprendizaje de la Física

In this paper some App’s that are free in the Play Store, are used in order to study uniformly accelerated movement, taking as examples the movement of a car on an inclined plane and the free fall of a smartphone. The graphs of position, velocity and acceleration as a function of time and the value of the acceleration of gravity are obtained, respectively. These applications are tools, easy to access and manipulate, which allow performing inexpensive experiments and articulate theory and practice in the teaching-learning processes of physics. The work was developed by students of the fourth semester of the Degree in Natural Sciences and Environmental Education - face-to-face modality - of the University of Tolima in the course of Fundamental Physics I - Mechanics.En este trabajo se usan algunas App´s gratuitas disponibles en Play Store, para estudiar Movimiento Uniformemente Acelerado, tomando como ejemplos   el movimiento de un carro sobre un plano inclinado y la caída libre de un Smartphone. Se obtuvieron las gráficas de posición, velocidad y aceleración en función del tiempo, y el valor de la aceleración de la gravedad, respectivamente. Estas aplicaciones son herramientas, de fácil acceso y manipulación, que permiten realizar experimentos de bajo costo y articular teoría y práctica en los procesos de enseñanza- aprendizaje de la física.  El trabajo fue desarrollado por estudiantes de cuarto semestre de la Licenciatura en Ciencias Naturales y Educación Ambiental- modalidad presencial – de la Universidad del Tolima en el curso de Física Fundamental I – Mecánica

Voces de la Asamblea Nacional Constituyente de 1991

Voces de la Asamblea Nacional Constituyente de Colombia de 1991 es un libro de entrevistas producto del proyecto de investigación: "La participación ciudadana en el proceso constituyente de 1991" realizado por el Grupo de Investigaciones Jurídicas de la Universidad de Medellín. Este proyecto, financiado por COLCIENCIAS y la Facultad de Derecho de la Universidad de Medellín, terminó en febrero de 2014. El texto pretende mostrar el proceso constituyente, a través de la mirada y las reflexiones de sus protagonistas: integrantes del Movimiento de la Séptima Papeleta, de las Mesas preparatorias, Asesores y Constituyentes quienes son, por excelencia, los testigos directos de uno de los acontecimientos políticos y jurídicos más importantes de la historia colombiana reciente. &nbsp

Evaluation of a quality improvement intervention to reduce anastomotic leak following right colectomy (EAGLE): pragmatic, batched stepped-wedge, cluster-randomized trial in 64 countries

Background Anastomotic leak affects 8 per cent of patients after right colectomy with a 10-fold increased risk of postoperative death. The EAGLE study aimed to develop and test whether an international, standardized quality improvement intervention could reduce anastomotic leaks. Methods The internationally intended protocol, iteratively co-developed by a multistage Delphi process, comprised an online educational module introducing risk stratification, an intraoperative checklist, and harmonized surgical techniques. Clusters (hospital teams) were randomized to one of three arms with varied sequences of intervention/data collection by a derived stepped-wedge batch design (at least 18 hospital teams per batch). Patients were blinded to the study allocation. Low- and middle-income country enrolment was encouraged. The primary outcome (assessed by intention to treat) was anastomotic leak rate, and subgroup analyses by module completion (at least 80 per cent of surgeons, high engagement; less than 50 per cent, low engagement) were preplanned. Results A total 355 hospital teams registered, with 332 from 64 countries (39.2 per cent low and middle income) included in the final analysis. The online modules were completed by half of the surgeons (2143 of 4411). The primary analysis included 3039 of the 3268 patients recruited (206 patients had no anastomosis and 23 were lost to follow-up), with anastomotic leaks arising before and after the intervention in 10.1 and 9.6 per cent respectively (adjusted OR 0.87, 95 per cent c.i. 0.59 to 1.30; P = 0.498). The proportion of surgeons completing the educational modules was an influence: the leak rate decreased from 12.2 per cent (61 of 500) before intervention to 5.1 per cent (24 of 473) after intervention in high-engagement centres (adjusted OR 0.36, 0.20 to 0.64; P < 0.001), but this was not observed in low-engagement hospitals (8.3 per cent (59 of 714) and 13.8 per cent (61 of 443) respectively; adjusted OR 2.09, 1.31 to 3.31). Conclusion Completion of globally available digital training by engaged teams can alter anastomotic leak rates. Registration number: NCT04270721 (http://www.clinicaltrials.gov)