7 research outputs found

    Desarrollo local a partir del uso de tecnología social: un enfoque alternativo

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    La problemática social en la Argentina requiere de un cambio de visión en la construcción de la resolución del problema. El fenómeno de la exclusión y el empobrecimiento de grandes sectores de la población pone en crisis los enfoques que se vienen utilizando para el abordaje de dicha problemática y muestra una ineficiencia en las soluciones planteadas, como también la ausencia de acciones transformadoras de la realidad social. Los modelos de desarrollo, imperantes en el sistema económico mundial, se basan en un juego de oferta y demanda en el que el libre mercado se autorregula dando lugar a crecimientos inequitativos y decrecimientos fabulosos. Se parte, entonces, por reconocer la ausencia de modelos no excluyentes alternativos. El presente trabajo pretende exponer una experiencia de investigación-acción cuyo enfoque de resolución de la problemática se plantea a partir de procesos inclusivos aplicando el uso de tecnologías sociales como instrumento para el desarrollo local. Caso: Villa Paranacito

    Desarrollo local a partir del uso de tecnología social: un enfoque alternativo

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    La problemática social en la Argentina requiere de un cambio de visión en la construcción de la resolución del problema. El fenómeno de la exclusión y el empobrecimiento de grandes sectores de la población pone en crisis los enfoques que se vienen utilizando para el abordaje de dicha problemática y muestra una ineficiencia en las soluciones planteadas, como también la ausencia de acciones transformadoras de la realidad social. Los modelos de desarrollo, imperantes en el sistema económico mundial, se basan en un juego de oferta y demanda en el que el libre mercado se autorregula dando lugar a crecimientos inequitativos y decrecimientos fabulosos. Se parte, entonces, por reconocer la ausencia de modelos no excluyentes alternativos. El presente trabajo pretende exponer una experiencia de investigación-acción cuyo enfoque de resolución de la problemática se plantea a partir de procesos inclusivos aplicando el uso de tecnologías sociales como instrumento para el desarrollo local. Caso: Villa Paranacito.</p

    GROWTH on S190425z: Searching Thousands of Square Degrees to Identify an Optical or Infrared Counterpart to a Binary Neutron Star Merger with the Zwicky Transient Facility and Palomar Gattini-IR

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    The third observing run by LVC has brought the discovery of many compact binary coalescences. Following the detection of the first binary neutron star merger in this run (LIGO/Virgo S190425z), we performed a dedicated follow-up campaign with the Zwicky Transient Facility (ZTF) and Palomar Gattini-IR telescopes. The initial skymap of this single-detector gravitational wave (GW) trigger spanned most of the sky observable from Palomar Observatory. Covering 8000 deg2 of the initial skymap over the next two nights, corresponding to 46% integrated probability, ZTF system achieved a depth of ≈21 m AB in g- and r-bands. Palomar Gattini-IR covered 2200 square degrees in J-band to a depth of 15.5 mag, including 32% integrated probability based on the initial skymap. The revised skymap issued the following day reduced these numbers to 21% for the ZTF and 19% for Palomar Gattini-IR. We narrowed 338,646 ZTF transient "alerts" over the first two nights of observations to 15 candidate counterparts. Two candidates, ZTF19aarykkb and ZTF19aarzaod, were particularly compelling given that their location, distance, and age were consistent with the GW event, and their early optical light curves were photometrically consistent with that of kilonovae. These two candidates were spectroscopically classified as young core-collapse supernovae. The remaining candidates were ruled out as supernovae. Palomar Gattini-IR did not identify any viable candidates with multiple detections only after merger time. We demonstrate that even with single-detector GW events localized to thousands of square degrees, systematic kilonova discovery is feasible

    GROWTH on GW190425: Searching thousands of square degrees to identify an optical or infrared counterpart to a binary neutron star merger with the Zwicky Transient Facility and Palomar Gattini IR

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    The beginning of the third observing run by the network of gravitational-wave detectors has brought the discovery of many compact binary coalescences. Prompted by the detection of the first binary neutron star merger in this run (GW190425 / LIGO/Virgo S190425z), we performed a dedicated follow-up campaign with the Zwicky Transient Facility (ZTF) and Palomar Gattini-IR telescopes. As it was a single gravitational-wave detector discovery, the initial skymap spanned most of the sky observable from Palomar Observatory, the site of both instruments. Covering 8000 deg2^2 of the inner 99\% of the initial skymap over the next two nights, corresponding to an integrated probability of 46\%, the ZTF system achieved a depth of \approx\,21 mABm_\textrm{AB} in gg- and rr-bands. Palomar Gattini-IR covered a total of 2200 square degrees in JJ-band to a depth of 15.5\,mag, including 32\% of the integrated probability based on the initial sky map. However, the revised skymap issued the following day reduced these numbers to 21\% for the Zwicky Transient Facility and 19\% for Palomar Gattini-IR. Out of the 338,646 ZTF transient "alerts" over the first two nights of observations, we narrowed this list to 15 candidate counterparts. Two candidates, ZTF19aarykkb and ZTF19aarzaod were particularly compelling given that their location, distance, and age were consistent with the gravitational-wave event, and their early optical lightcurves were photometrically consistent with that of kilonovae. These two candidates were spectroscopically classified as young core-collapse supernovae. The remaining candidates were photometrically or spectroscopically ruled-out as supernovae. Palomar Gattini-IR identified one fast evolving infrared transient after the merger, PGIR19bn, which was later spectroscopically classified as an M-dwarf flare. [abridged

    Hábitat popular. Resistencia cultural materializada

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    In this article appears an alternative approach to the value of the popular habitat. Its production is considered a value in itself, intangible, where the cultural heap of the diverse towns that compose the Popular Habitat is expressed materialized in Architecture of high symbolic content. The arguments of this approach are constructed from sociological and anthropological conceptions that explain the semiotics of this physical expression that is so singular and always present in our Latin American cities.En este artículo se presenta un enfoque alternativo acerca del valor del hábitat popular. Se considera su producción como un valor en sí mismo, intangible, donde se expresa el acervo cultural de los diversos pueblos que componen el Hábitat Popular materializado en Arquitectura de alto contenido simbólico. Se construyen los argumentos de este enfoque a partir de concepciones sociológicas y antropológicas que dilucidan la semiótica de esta expresión física tan singular y siempre presente en nuestras ciudades latinoamericanas

    Hábitat popular.&#xD; Resistencia cultural materializada

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    En este artículo se presenta un enfoque alternativo&#xD; acerca del valor del hábitat popular. Se considera su&#xD; producción como un valor en sí mismo, intangible,&#xD; donde se expresa el acervo cultural de los diversos&#xD; pueblos que componen el Hábitat Popular materializado&#xD; en Arquitectura de alto contenido simbólico. Se&#xD; construyen los argumentos de este enfoque a partir de&#xD; concepciones sociológicas y antropológicas que&#xD; dilucidan la semiótica de esta expresión física tan&#xD; singular y siempre presente en nuestras ciudades&#xD; latinoamericanas

    Depigmentation and Anti-aging Treatment by Natural Molecules

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