La Imagen y la Narrativa como Herramientas para el Abordaje Psicosocial en Escenarios de Violencia – Municipios de Medellín y Titiribí

En el desarrollo de las actividades del diplomado en “Acompañamiento Psicosocial en Escenarios de Violencia” adscrito al programa de psicología de la Universidad Nacional Abierta y a Distancia UNAD, se logra ahondar, interiorizar e integrar las herramientas teóricas, conceptuales y metodológicas, vistas a lo largo del proceso de formación profesional; y que hacen parte de la praxis psicológica dentro de los proceso de diagnóstico, acompañamiento y evaluación psicosocial a los cuales están expuestas las personas, los grupos, las instituciones y/o comunidades vulneradas por los diferentes conflictos socio políticos y económicos que afectan al país. Es por esta razón que desde la técnica de Análisis del Relato dentro de un escenario de eventos psicosociales traumáticos de crisis y/o violencia, se analizan diferentes relatos y experiencias que han generado en el sujeto y las comunidades un alto impacto subjetivo e intersubjetivo que afecta todas las dimensiones del ser humano; es decir, la salud física, emocional, mental y espiritual e inclusive el desarrollo cognitivo e interacción social de la población colombiana. En el presente informe, se podrá encontrar el estudio de casos como son el Relato de Vida de Alfredo Campos y el Caso de las comunidades de Cacarica; análisis que permitió la integración y aplicación de los referentes teóricos, conceptuales y las herramientas metodológicas como la formulación de preguntas orientadas hacia un acercamiento psicosocial ético y proactivo que posibilite la valoración de los eventos traumáticos y la generación de estrategias de acompañamiento psicosocial que vinculen la construcción y reconstrucción de estilos de afrontamiento desde la subjetividad del individuo y la intersubjetividad emergentes del grupo o la comunidad como fuentes de memoria y acción transformadora desde una visión ética, activa y propositiva que favorezca la superación de las condiciones de victimización. Así mismo, el lector encontrara; el informe analítico y reflexivo de la experiencia de Foto Voz realizado por cada integrante del grupo colaborativo, las conclusiones del ejercicio realizado y el link de la galería de fotos que hicieron parte del ejercicio.In the development of activities of the certification in “Psychosocial Accompanying in Violence Scenarios” subscribed to Psychology program in Universidad Nacional Abierta y a Distancia UNAD, theorical conceptual and methodological tools learned through the professional training were delved into, embraced and integrated. Those make a part of the psychological praxis in the process of diagnosis, accompanying and psychosocial evaluation which people, groups, institutions and/or communities are exposed to, while they are forced by different socio political and economic conflicts affecting the country. For this reason, different testimonies and experiences are done from an narrative analysis technique in scenario of by-violence psychosocial traumatic events, which have generated a subjective and inter-subjective impact on all dimensions of human being, that is, physical, emotional mental and spiritual health of Colombian. In the report, study cases will be found as Alfredo Campos’ Life Story and the case of Cacarica communities; this analysis allowed the integration and application of theorical and conceptual references and methodological tools such as questions oriented to a psychosocial-ethical approach making possible evaluation of traumatic events and generation of psychosocial accompanying strategies to link deconstruction, construction and reconstruction of coping since subjectivity and intersubjectivity from a group as source of memory and transforming action through an ethical, active and active vision, in order to allow the overcoming of victimization conditions. Likewise, it is included: an analytical and reflexive report of Photovoice experience, that was made by each participant of collaborative group, conclusions and a web link to photo gallery

Study on multi-ELVES in the Pierre Auger Observatory

Since 2013, the four sites of the Fluorescence Detector (FD) of the Pierre Auger Observatory record ELVES with a dedicated trigger. These UV light emissions are correlated to distant lightning strikes. The length of recorded traces has been increased from 100 μs (2013), to 300 μs (2014-16), to 900 μs (2017-present), to progressively extend the observation of the light emission towards the vertical of the causative lightning and beyond. A large fraction of the observed events shows double ELVES within the time window, and, in some cases, even more complex structures are observed. The nature of the multi-ELVES is not completely understood but may be related to the different types of lightning in which they are originated. For example, it is known that Narrow Bipolar Events can produce double ELVES, and Energetic In-cloud Pulses, occurring between the main negative and upper positive charge layer of clouds, can induce double and even quadruple ELVES in the ionosphere. This report shows the seasonal and daily dependence of the time gap, amplitude ratio, and correlation between the pulse widths of the peaks in a sample of 1000+ multi-ELVES events recorded during the period 2014-20. The events have been compared with data from other satellite and ground-based sensing devices to study the correlation of their properties with lightning observables such as altitude and polarity

A search for ultra-high-energy photons at the Pierre Auger Observatory exploiting air-shower universality

The Pierre Auger Observatory is the most sensitive detector to primary photons with energies above ∼0.2 EeV. It measures extensive air showers using a hybrid technique that combines a fluorescence detector (FD) with a ground array of particle detectors (SD). The signatures of a photon-induced air shower are a larger atmospheric depth at the shower maximum (X$_{max}$) and a steeper lateral distribution function, along with a lower number of muons with respect to the bulk of hadron-induced background. Using observables measured by the FD and SD, three photon searches in different energy bands are performed. In particular, between threshold energies of 1-10 EeV, a new analysis technique has been developed by combining the FD-based measurement of X$_{max}$ with the SD signal through a parameter related to its muon content, derived from the universality of the air showers. This technique has led to a better photon/hadron separation and, consequently, to a higher search sensitivity, resulting in a tighter upper limit than before. The outcome of this new analysis is presented here, along with previous results in the energy ranges below 1 EeV and above 10 EeV. From the data collected by the Pierre Auger Observatory in about 15 years of operation, the most stringent constraints on the fraction of photons in the cosmic flux are set over almost three decades in energy

Extraction of the Muon Signals Recorded with the Surface Detector of the Pierre Auger Observatory Using Recurrent Neural Networks

We present a method based on the use of Recurrent Neural Networks to extract the muon component from the time traces registered with water-Cherenkov detector (WCD) stations of the Surface Detector of the Pierre Auger Observatory. The design of the WCDs does not allow to separate the contribution of muons to the time traces obtained from the WCDs from those of photons, electrons and positrons for all events. Separating the muon and electromagnetic components is crucial for the determination of the nature of the primary cosmic rays and properties of the hadronic interactions at ultra-high energies. We trained a neural network to extract the muon and the electromagnetic components from the WCD traces using a large set of simulated air showers, with around 450 000 simulated events. For training and evaluating the performance of the neural network, simulated events with energies between 1018.5, eV and 1020 eV and zenith angles below 60 degrees were used. We also study the performance of this method on experimental data of the Pierre Auger Observatory and show that our predicted muon lateral distributions agree with the parameterizations obtained by the AGASA collaboration