Mapeo zonas de resguardo ambiental de distintas localidades de la provincia de Córdoba.

La provincia de Córdoba con una población de 3.308.876 habitantes (censo nacional 2010), cuenta con alrededor de 424 localidades en total, de las cuales el 90% posee menos de 10.000 habitantes. Esta modalidad de poblamiento urbano convierte a Córdoba en una de las provincias con mayor interfase urbano-rural del país. El encuentro entre las fronteras agropecuaria y urbana genera una situación conflictiva dentro de la cual un factor de gran importancia es la deriva de agroquímicos. Esto ha originado un alto grado de sensibilidad entre las comunidades de toda la provincia y la actividad agrícola. Desde resonados conflictos, como el caso de las denuncias realizadas por Las Madres de Ituzaingó Anexo hace más de una década, se ha puesto en eje de discusión el tema de la contaminación por fitosanitarios dándose lugar a leyes provinciales específicas (Nº 9164). En respuesta a esta conflictividad que fue creciendo en el tiempo y formando parte de las agendas municipales, por potestad jurisdiccional numerosos municipios han incrementado las restricciones de uso y aplicación de productos químicos y biológicos de uso agropecuario en Zonas de Resguardo Ambiental (ZRA) como nuevas figuras de ordenamiento territorial, donde se demarca una importante extensión de superficie agrícola con variables niveles de restricción al uso estos productos.EEA Manfredi. O-AUPAFil: Lerussi, Marcelo. Colegio de Ingenieros Agrónomos de la Provincia de Córdoba-Comisión de Agricultura Urbana y Periurbana, Argentina.Fil: Marinelli, Victoria. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Manfredi. Agencia de Extensión Rural Córdoba-Observatorio AUPA, ArgentinaFil: Giobellina, Beatriz Liliana. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Manfredi- Observatorio AUPA; ArgentinaFil: Mari, Nicolás. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Manfredi. Agencia de Extensión Rural Cruz del Eje, ArgentinaFil: Andrada, Paolo. Colegio de Ingenieros Agrónomos de la Provincia de Córdoba-Comisión de Agricultura Urbana y Periurbana, ArgentinaFil: Gasparetti, Graciela. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Manfredi. Agencia de Extensión Rural San Francisco, ArgentinaFil: Perozzi, Marianela. Colegio de Ingenieros Agrónomos de la Provincia de Córdoba-Comisión de Agricultura Urbana y Periurbana- Municipalidad de Monte Buey, Argentina.Fil: Pellegrino, Fernando. Colegio de Ingenieros Agrónomos de la Provincia de Córdoba-Comisión de Agricultura Urbana y Periurbana, Argentina.Fil: Mantesse, Daniel. Colegio de Ingenieros Agrónomos de la Provincia de Córdoba-Comisión de Agricultura Urbana y Periurbana.Fil: Palacio, Jorgelina. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Manfredi. Agencia de Extensión Rural Córdoba Observatorio AUPA, Argentina.Fil: Di Pauli, Luciana. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Manfredi. Agencia de Extensión Rural Córdoba Observatorio AUPA, Argentina

Combined fit to the spectrum and composition data measured by the Pierre Auger Observatory including magnetic horizon effects

The measurements by the Pierre Auger Observatory of the energy spectrum and mass composition of cosmic rays can be interpreted assuming the presence of two extragalactic source populations, one dominating the flux at energies above a few EeV and the other below. To fit the data ignoring magnetic field effects, the high-energy population needs to accelerate a mixture of nuclei with very hard spectra, at odds with the approximate E$^{-2}$ shape expected from diffusive shock acceleration. The presence of turbulent extragalactic magnetic fields in the region between the closest sources and the Earth can significantly modify the observed CR spectrum with respect to that emitted by the sources, reducing the flux of low-rigidity particles that reach the Earth. We here take into account this magnetic horizon effect in the combined fit of the spectrum and shower depth distributions, exploring the possibility that a spectrum for the high-energy population sources with a shape closer to E$^{-2}$ be able to explain the observations

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

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