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Crear un método/modelo pedagógico institucional que permita visualizar la complejidad del aprendizaje en procesos socioemocionales de los estudiantes, a través de la conexión de saberes (interdisciplinar). El presente trabajo propone un modelo de cartografía social digital que posibilite la apropiación social del conocimiento mediante tres acciones; primero, distinguir las características de la Innovación Social en Educación, segundo, describir el acompañamiento de la sistematización de las experiencias, y tercero, visualizarlas a través de un prototipo. El ejercicio investigativo se desarrolla con tres organizaciones educativas; Centro Educativo Libertad, Parque Científico de Innovación Social, y la Institución Educativa Municipal Juan XXIII, ubicadas en la región Bogotá - Cundinamarca. La sistematización etnográfica es la metodología para la aproximación del fenómeno a estudiar, la recolección de datos se apoya en la observación no participante y el análisis de la información, se realiza mediante documentos, registros, materiales, narrativas y artefactos de las experiencias. Por último, se tejen las lecciones aprendidas con relación al rol del maestro, los saberes emergentes y las acciones educativas centradas en la innovación social en educación y las reflexiones de la investigación en cada experiencia. The present work seeks to propose a model of digital social cartography that enables the social appropriation of knowledge through three actions; first, distinguish the characteristics of Social Innovation in Education, second, describe the accompaniment of the systematization of experiences, and third, visualize them through the prototype. The investigative exercise is developed with three educational organizations; Libertad Educational Center, Social Innovation Science Park, and the Juan XXIII Municipal Educational Institution, located in the Bogotá - Cundinamarca region. The ethnographic systematization is the methodology for the approximation of the phenomenon to be studied, the data collection is supported by non-participant observation and the analysis of the information, documents, records, materials, narratives, and artifacts of the experiences are made. Finally, the lessons learned are woven in relation to the role of the teacher, emerging knowledge and educational actions focused on social innovation in education and the reflections of research in each experience.

Paleoceanographic studies typically employ stable nitrogen isotopic measurements of total combustible N (δ15NTN) from marine sediments to infer temporal changes in surface ocean marine N dynamics. However, δ15NTN is a highly non-specific measurement, susceptible to confounding issues including non-marine N sources, and offers little, if any, information regarding degradation and/or alteration of primary δ15N signals. Recent development of novel biomarker and microfossil based proxies provide new analytical capabilities to circumvent issues with δ15NTN. Here, I explore the utility of compound specific nitrogen isotopic analysis of individual amino acids measurements (δ15NAA) of proteinaceous material isolated from marine sediments and deep-sea coral. With these data I infer past changes in nitrate δ15N fueling primary production at the base of the food web, ecosystem structure, and the extent of heterotrophic resynthesis influencing sedimentary and coral-skeletal δ15NTN records. Within sediments and corals, I demonstrate that δ15NAA based parameters reflect that of sinking particles and surface collected planktonic biomass and thus serve as a robust, albeit complex proxy to infer ecosystem and nutrient dynamic changes for at least the last few hundred years on the California Margin. In sediments I find an unexpected δ15N offset in major operational fractions and molecular compound classes. This result (1) challenges a major assumption organic nitrogen in sediments is dominated by amide functionality (i.e., proteinaceous N) and (2) highlights possible issues with standard protein hydrolysis techniques. Lastly, I analyze the δ15N composition of foraminifera-bound N (FB-δ15N) to assess the Plio-Pleistocene history of whole ocean nitrogen dynamics from the oligotrophic North Pacific for the last 5 million years. This region contains calcareous nannofossil rich sediments, ideal for preserved FB-δ15N records. These new FB-δ15N records support an expansion of suboxic regions, consistent with previous evidence, but also indicate that the whole ocean δ15N budget was stable throughout the Plio-Pleistocene. This latter result implies that kinetic isotopic fractionations of marine N transformations and the ratio of pelagic to benthic denitrification, must not have changed during the Plio-Pleistocene transition, despite drastic global scale changes in sea level, shelf area, and volume of the major oxygen deficient zones at this time.