Propuesta de alternativa para la pacificación del tránsito frente a la sede 13 (calle 47 entre las carreras 13 y 14) de la Universidad Católica de Colombia

Trabajo de investigaciónEste proyecto busca generar espacios seguros para los peatones, con el fin de reducir los accidentes de tránsito, que al año 2018 según datos del IDECA, en la intersección de la carrera 13 con calle 47 se establecieron en 13. Gracias a las diferentes alternativas de pacificación del tránsito que se encuentran disponibles en la actualidad, se ha logrado disminuir los accidentes de tránsito, es por esto, que en esta investigación se propone diseñar un paso a nivel sobre la calle 47 entre Carreras 13 y 14, con el fin de ampliar las vías peatonales basándose en la cartilla de andenes para Bogotá de la Secretaria Distrital De Planeación y el Decreto 327 del 2004. De igual manera se verifico el nivel de servicio actual del andén del costado norte y el nivel de servicio que se prestará con las alternativas propuestas, finalmente se llevó a cabo una simulación de la condición actual de movilidad del corredor con el fin de determinar cómo se comportara el corredor con la alternativa planteada en la investigación. Todas las conclusiones de la investigación se basan en mejorar las condiciones de movilidad peatonal con el fin de conseguir una movilidad más segura y que no represente conflicto entre los diferentes actores viales del corredor.INTRODUCCIÓN 1. ANTECEDENTES Y JUSTIFICACIÓN 2. PLANTEAMIENTO Y FORMULACIÓN DEL PROBLEMA 3. OBJETIVOS 4. MARCO DE REFERENCIA 5. ALCANCES Y LIMITACIONES 6. METODOLOGÍA 7. VISITA DE CAMPO 8. INSPECCIÓN VISUAL DE SEGURIDAD 9. ESTUDIO DE LA ALTERNATIVA 10. DISEÑO DE LA ALTERNATIVA 11. MODELACIÓN EN PTV VISSIM 2020 VERSIÓN EDUCATIVA 12. CONCLUSIONES BIBLIOGRAFÍA ANEXOSPregradoIngeniero Civi

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A growing number of studies have examined alterations in white matter organization in people with posttraumatic stress disorder (PTSD) using diffusion MRI (dMRI), but the results have been mixed which may be partially due to relatively small sample sizes among studies. Altered structural connectivity may be both a neurobiological vulnerability for, and a result of, PTSD. In an effort to find reliable effects, we present a multi-cohort analysis of dMRI metrics across 3047 individuals from 28 cohorts currently participating in the PGC-ENIGMA PTSD working group (a joint partnership between the Psychiatric Genomics Consortium and the Enhancing NeuroImaging Genetics through Meta-Analysis consortium). Comparing regional white matter metrics across the full brain in 1426 individuals with PTSD and 1621 controls (2174 males/873 females) between ages 18–83, 92% of whom were trauma-exposed, we report associations between PTSD and disrupted white matter organization measured by lower fractional anisotropy (FA) in the tapetum region of the corpus callosum (Cohen’s d = −0.11, p = 0.0055). The tapetum connects the left and right hippocampus, for which structure and function have been consistently implicated in PTSD. Results were consistent even after accounting for the effects of multiple potentially confounding variables: childhood trauma exposure, comorbid depression, history of traumatic brain injury, current alcohol abuse or dependence, and current use of psychotropic medications. Our results show that PTSD may be associated with alterations in the broader hippocampal network. © 2019, The Author(s), under exclusive licence to Springer Nature Limited.N