23 research outputs found

    Competencias socioemocionales y percepción de la comunidad ante la conducta agresiva en adolescentes que viven en entornos de riesgo

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    According to international statistics, Latin America young people are shown concerned by the violence climate in their communities. This paper seeks to identify the role of socioemotional competences as a protection factor against aggressive behaviors in young people. 970 middle school students which inhabit in a context of psychosocial risk were inquired. The results showed that risk perception seems to have bigger impact in men, keeping its predictive level, even when it controls socioemotional capabilities, unlike women. These findings are discussed at the light of other studies in which vulnerability of male sector against communitarian violence is highlighted. Likewise, anger management’s role, interpersonal capabilities and the formation of a positive mood with the aim of suggesting social actions targeted towards violence reduction are pointed out.ResumenSegún las encuestas internacionales, los jóvenes de América latina se muestran preocupados por el clima de violencia en sus comunidades. Este trabajo busca identificar el rol de las competencias socioemocionales como factor de protección ante las conductas agresivas en los jóvenes. Se encuestaron a 970 estudiantes de secundaria que residen en contextos considerados como de riesgo psicosocial. Los resultados apuntan a que la percepción del riesgo parece tener un mayor impacto en los varones, manteniendo su nivel predictivo incluso al controlar las competencias socioemocionales, no así con las mujeres. Estos hallazgos se discuten a la luz de otros estudios en los que se señala la vulnerabilidad del sector masculino ante la violencia comunitaria. Así mismo se destaca el rol del manejo del enojo, las competencias interpersonales y la generación de un estado de ánimo positivo con la finalidad de sugerir acciones sociales destinadas a la reducción de la violencia.  AbstractAccording to international statistics, Latin America young people are shown concerned by the violence climate in their communities. This paper seeks to identify the role of socioemotional competences as a protection factor against aggressive behaviors in young people. 970 middle school students which inhabit in a context of psychosocial risk were inquired. The results showed that risk perception seems to have bigger impact in men, keeping its predictive level, even when it controls socioemotional capabilities, unlike women. These findings are discussed at the light of other studies in which vulnerability of male sector against communitarian violence is highlighted. Likewise, anger management’s role, interpersonal capabilities and the formation of a positive mood with the aim of suggesting social actions targeted towards violence reduction are pointed out

    Competencias socioemocionales y percepción de la comunidad ante la conducta agresiva en adolescentes que viven en entornos de riesgo [Socioemotional competences & perception of the community vs the aggressive behavior in adolescents living in risky enviro

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    According to international statistics, Latin America young people are shown concerned by the violence climate in their communities. This paper seeks to identify the role of socioemotional competences as a protection factor against aggressive behaviors in young people. 970 middle school students which inhabit in a context of psychosocial risk were inquired. The results showed that risk perception seems to have bigger impact in men, keeping its predictive level, even when it controls socioemotional capabilities, unlike women. These findings are discussed at the light of other studies in which vulnerability of male sector against communitarian violence is highlighted. Likewise, anger management’s role, interpersonal capabilities and the formation of a positive mood with the aim of suggesting social actions targeted towards violence reduction are pointed out.ResumenSegún las encuestas internacionales, los jóvenes de América latina se muestran preocupados por el clima de violencia en sus comunidades. Este trabajo busca identificar el rol de las competencias socioemocionales como factor de protección ante las conductas agresivas en los jóvenes. Se encuestaron a 970 estudiantes de secundaria que residen en contextos considerados como de riesgo psicosocial. Los resultados apuntan a que la percepción del riesgo parece tener un mayor impacto en los varones, manteniendo su nivel predictivo incluso al controlar las competencias socioemocionales, no así con las mujeres. Estos hallazgos se discuten a la luz de otros estudios en los que se señala la vulnerabilidad del sector masculino ante la violencia comunitaria. Así mismo se destaca el rol del manejo del enojo, las competencias interpersonales y la generación de un estado de ánimo positivo con la finalidad de sugerir acciones sociales destinadas a la reducción de la violencia.  AbstractAccording to international statistics, Latin America young people are shown concerned by the violence climate in their communities. This paper seeks to identify the role of socioemotional competences as a protection factor against aggressive behaviors in young people. 970 middle school students which inhabit in a context of psychosocial risk were inquired. The results showed that risk perception seems to have bigger impact in men, keeping its predictive level, even when it controls socioemotional capabilities, unlike women. These findings are discussed at the light of other studies in which vulnerability of male sector against communitarian violence is highlighted. Likewise, anger management’s role, interpersonal capabilities and the formation of a positive mood with the aim of suggesting social actions targeted towards violence reduction are pointed out

    Constraining the sources of ultra-high-energy cosmic rays across and above the ankle with the spectrum and composition data measured at the Pierre Auger Observatory

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    In this work we present the interpretation of the energy spectrum and mass composition data as measured by the Pierre Auger Collaboration above 6×10176 \times 10^{17} eV. We use an astrophysical model with two extragalactic source populations to model the hardening of the cosmic-ray flux at around 5×10185\times 10^{18} eV (the so-called "ankle" feature) as a transition between these two components. We find our data to be well reproduced if sources above the ankle emit a mixed composition with a hard spectrum and a low rigidity cutoff. The component below the ankle is required to have a very soft spectrum and a mix of protons and intermediate-mass nuclei. The origin of this intermediate-mass component is not well constrained and it could originate from either Galactic or extragalactic sources. To the aim of evaluating our capability to constrain astrophysical models, we discuss the impact on the fit results of the main experimental systematic uncertainties and of the assumptions about quantities affecting the air shower development as well as the propagation and redshift distribution of injected ultra-high-energy cosmic rays (UHECRs)

    Constraining the sources of ultra-high-energy cosmic rays across and above the ankle with the spectrum and composition data measured at the Pierre Auger Observatory

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    In this work we present the interpretation of the energy spectrum and mass composition data as measured by the Pierre Auger Collaboration above 6×10176 \times 10^{17} eV. We use an astrophysical model with two extragalactic source populations to model the hardening of the cosmic-ray flux at around 5×10185\times 10^{18} eV (the so-called "ankle" feature) as a transition between these two components. We find our data to be well reproduced if sources above the ankle emit a mixed composition with a hard spectrum and a low rigidity cutoff. The component below the ankle is required to have a very soft spectrum and a mix of protons and intermediate-mass nuclei. The origin of this intermediate-mass component is not well constrained and it could originate from either Galactic or extragalactic sources. To the aim of evaluating our capability to constrain astrophysical models, we discuss the impact on the fit results of the main experimental systematic uncertainties and of the assumptions about quantities affecting the air shower development as well as the propagation and redshift distribution of injected ultra-high-energy cosmic rays (UHECRs)

    Search for Ultra-high-energy Photons from Gravitational Wave Sources with the Pierre Auger Observatory

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    International audienceA search for time-directional coincidences of ultra-high-energy (UHE) photons above 10 EeV with gravitational wave (GW) events from the LIGO/Virgo runs O1 to O3 is conducted with the Pierre Auger Observatory. Due to the distinctive properties of photon interactions and to the background expected from hadronic showers, a subset of the most interesting GW events is selected based on their localization quality and distance. Time periods of 1000 s around and 1 day after the GW events are analyzed. No coincidences are observed. Upper limits on the UHE photon fluence from a GW event are derived that are typically at ∼7 MeV cm2^{−2} (time period 1000 s) and ∼35 MeV cm2^{−2} (time period 1 day). Due to the proximity of the binary neutron star merger GW170817, the energy of the source transferred into UHE photons above 40 EeV is constrained to be less than 20% of its total GW energy. These are the first limits on UHE photons from GW sources

    Searches for Ultra-High-Energy Photons at the Pierre Auger Observatory

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    International audienceThe Pierre Auger Observatory, being the largest air-shower experiment in the world, offers an unprecedented exposure to neutral particles at the highest energies. Since the start of data taking more than 18 years ago, various searches for ultra-high-energy (UHE, E1017eVE\gtrsim10^{17}\,\text{eV}) photons have been performed: either for a diffuse flux of UHE photons, for point sources of UHE photons or for UHE photons associated with transient events like gravitational wave events. In the present paper, we summarize these searches and review the current results obtained using the wealth of data collected by the Pierre Auger Observatory

    Arrival Directions of Cosmic Rays above 32 EeV from Phase One of the Pierre Auger Observatory

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    A promising energy range to look for angular correlation between cosmic rays of extragalactic origin and their sources is at the highest energies, above few tens of EeV (1EeV10181\:{\rm EeV}\equiv 10^{18}\:eV). Despite the flux of these particles being extremely low, the area of 3,000km2{\sim}\:3{,}000 \: \text{km}^2 covered at the Pierre Auger Observatory, and the 17-year data-taking period of the Phase 1 of its operations, have enabled us to measure the arrival directions of more than 2,600 ultra-high energy cosmic rays above 32EeV32\:\text{EeV}. We publish this data set, the largest available at such energies from an integrated exposure of 122,000km2sryr122{,}000 \: \text{km}^2\:\text{sr}\:\text{yr}, and search it for anisotropies over the 3.4π3.4\pi steradians covered with the Observatory. Evidence for a deviation in excess of isotropy at intermediate angular scale, with 15{\sim}\:15^\circ Gaussian spread or 25{\sim}\:25^\circ top-hat radius, is obtained at the 4σ4\:\sigma significance level for cosmic-ray energies above 40EeV{\sim}\:40\:\text{EeV}

    Arrival Directions of Cosmic Rays above 32 EeV from Phase One of the Pierre Auger Observatory

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    International audienceA promising energy range to look for angular correlations between cosmic rays of extragalactic origin and their sources is at the highest energies, above a few tens of EeV (1 EeV ≡ 1018^{18} eV). Despite the flux of these particles being extremely low, the area of ∼3000 km2^{2} covered at the Pierre Auger Observatory, and the 17 yr data-taking period of the Phase1 of its operations, have enabled us to measure the arrival directions of more than 2600 ultra-high-energy cosmic rays above 32 EeV. We publish this data set, the largest available at such energies from an integrated exposure of 122,000 km2^{2} sr yr, and search it for anisotropies over the 3.4π steradians covered with the Observatory. Evidence for a deviation in excess of isotropy at intermediate angular scales, with ∼15° Gaussian spread or ∼25° top-hat radius, is obtained at the 4σ significance level for cosmic-ray energies above ∼40 EeV

    Design and implementation of the AMIGA embedded system for data acquisition

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    International audienceThe Auger Muon Infill Ground Array (AMIGA) is part of the AugerPrime upgrade of the Pierre Auger Observatory. It consists of particle counters buried 2.3 m underground next to the water-Cherenkov stations that form the 23.5 km2 large infilled array. The reduced distance between detectors in this denser area allows the lowering of the energy threshold for primary cosmic ray reconstruction down to about 1017 eV. At the depth of 2.3 m the electromagnetic component of cosmic ray showers is almost entirely absorbed so that the buried scintillators provide an independent and direct measurement of the air showers muon content. This work describes the design and implementation of the AMIGA embedded system, which provides centralized control, data acquisition and environment monitoring to its detectors. The presented system was firstly tested in the engineering array phase ended in 2017, and lately selected as the final design to be installed in all new detectors of the production phase. The system was proven to be robust and reliable and has worked in a stable manner since its first deployment
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