Factores biosociales asociados a la mortalidad materna en el departamento de Chocó 2013-2019

Objective: To describe the convergence of biosocial forces that interact to produce and exacerbate maternal mortality in the department of Chocó. Materials and methods: This is a descriptive, retrospective study of maternal mortality and its associated factors in Chocó. Authorization was requested to review the epidemiological surveillance files of all cases of maternal deaths between 2013 and 2019. Confidentiality was guaranteed by using codes and medical record numbers for identification. In addition, the National Survey of Demography and Health (NSDH) 2015 and prenatal control reports from the department of Chocó were reviewed to identify factors associated with maternal mortality. Results: A total of 96 maternal deaths were registered during the 2013-2019 period. The group between 30-34 years of age contributed with the highest number of cases of maternal death (17 deaths). 90% of maternal deaths (65) were affiliated with the General Social Security System, 10% (7) corresponded to the uninsured population. Finally, 94% of obstetric deaths (68) correspond to women who performed household chores, and 6% (4) to public sector employees. The main cause of maternal mortality was related to hypertensive disorders during pregnancy. It was evidenced that only 72% of pregnant women received prenatal check-ups by a doctor in Chocó and that the nurses attended 6.6% of them. In 2020, it was reported that the maximum percentage of live births with more than 4 prenatal check-ups was 79.49%. Conclusions: The observed situation suggests the implementation of strategies that improve access to quality integral health services. Thus, an articulation between health authorities, health system service providers, local community actors, and academia must be guaranteed.Objetivo: Describir la convergencia de fuerzas biosociales que interactúan para producir y exacerbar la mortalidad materna en el departamento de Chocó. Materiales y métodos: Estudio descriptivo, retrospectivo de la mortalidad materna y los factores asociados en el Chocó. Se solicitó autorización para revisión de fichas de vigilancia epidemiológica de todos los casos de  muertes maternas entre 2013 y 2019. Se garantizó la confidencialidad usando códigos y número de historia clínica, para identificación. Además, se revisó la Encuesta Nacional de Demografía y Salud ENDS 2015  y los informes de control prenatal en el departamento del Chocó para identificar factores asociados a la mortalidad materna. Resultados: Se registró un total de 96 muertes maternas durante el período 2013-2019. El grupo comprendido entre 30-34 años de edad aportó el mayor número de casos de muerte materna (17 muertes). El 90% de los fallecimientos maternos pertenecían al Sistema General de Seguridad Social, 10% correspondía a población pobre no asegurada. El 94% (68) de los fallecimientos obstétricos corresponde a mujeres que desempeñaban labores en el hogar y 6% (4) empleadas del sector público. La principal causa de mortalidad materna se relacionó con trastornos hipertensivos en el embarazo. Se evidenció que solo el 72% de las gestantes recibieron control prenatal por médico en Chocó y el 6.6% de los controles fue realizado por enfermeras. En 2020, se reportó que el porcentaje máximo de nacidos vivos con más de 4 consultas de control prenatal fue 79.49%.   Conclusiones: La situación observada sugiere la implementación de estrategias que mejoren el acceso a servicios de salud integrales de calidad. Se debe garantizar una articulación entre las autoridades de salud, actores de prestación de servicios del sistema de salud, actores comunitarios locales y la academia

Factores biosociales asociados a la mortalidad materna en el departamento de Chocó 2013-2019

Objective: To describe the convergence of biosocial forces that interact to produce and exacerbate maternal mortality in the department of Chocó. Materials and methods: This is a descriptive, retrospective study of maternal mortality and its associated factors in Chocó. Authorization was requested to review the epidemiological surveillance files of all cases of maternal deaths between 2013 and 2019. Confidentiality was guaranteed by using codes and medical record numbers for identification. In addition, the National Survey of Demography and Health (NSDH) 2015 and prenatal control reports from the department of Chocó were reviewed to identify factors associated with maternal mortality. Results: A total of 96 maternal deaths were registered during the 2013-2019 period. The group between 30-34 years of age contributed with the highest number of cases of maternal death (17 deaths). 90% of maternal deaths (65) were affiliated with the General Social Security System, 10% (7) corresponded to the uninsured population. Finally, 94% of obstetric deaths (68) correspond to women who performed household chores, and 6% (4) to public sector employees. The main cause of maternal mortality was related to hypertensive disorders during pregnancy. It was evidenced that only 72% of pregnant women received prenatal check-ups by a doctor in Chocó and that the nurses attended 6.6% of them. In 2020, it was reported that the maximum percentage of live births with more than 4 prenatal check-ups was 79.49%. Conclusions: The observed situation suggests the implementation of strategies that improve access to quality integral health services. Thus, an articulation between health authorities, health system service providers, local community actors, and academia must be guaranteed.Objetivo: Describir la convergencia de fuerzas biosociales que interactúan para producir y exacerbar la mortalidad materna en el departamento de Chocó. Materiales y métodos: Estudio descriptivo, retrospectivo de la mortalidad materna y los factores asociados en el Chocó. Se solicitó autorización para revisión de fichas de vigilancia epidemiológica de todos los casos de  muertes maternas entre 2013 y 2019. Se garantizó la confidencialidad usando códigos y número de historia clínica, para identificación. Además, se revisó la Encuesta Nacional de Demografía y Salud ENDS 2015  y los informes de control prenatal en el departamento del Chocó para identificar factores asociados a la mortalidad materna. Resultados: Se registró un total de 96 muertes maternas durante el período 2013-2019. El grupo comprendido entre 30-34 años de edad aportó el mayor número de casos de muerte materna (17 muertes). El 90% de los fallecimientos maternos pertenecían al Sistema General de Seguridad Social, 10% correspondía a población pobre no asegurada. El 94% (68) de los fallecimientos obstétricos corresponde a mujeres que desempeñaban labores en el hogar y 6% (4) empleadas del sector público. La principal causa de mortalidad materna se relacionó con trastornos hipertensivos en el embarazo. Se evidenció que solo el 72% de las gestantes recibieron control prenatal por médico en Chocó y el 6.6% de los controles fue realizado por enfermeras. En 2020, se reportó que el porcentaje máximo de nacidos vivos con más de 4 consultas de control prenatal fue 79.49%.   Conclusiones: La situación observada sugiere la implementación de estrategias que mejoren el acceso a servicios de salud integrales de calidad. Se debe garantizar una articulación entre las autoridades de salud, actores de prestación de servicios del sistema de salud, actores comunitarios locales y la academia

The DUNE Far Detector Vertical Drift Technology, Technical Design Report

International audienceDUNE is an international experiment dedicated to addressing some of the questions at the forefront of particle physics and astrophysics, including the mystifying preponderance of matter over antimatter in the early universe. The dual-site experiment will employ an intense neutrino beam focused on a near and a far detector as it aims to determine the neutrino mass hierarchy and to make high-precision measurements of the PMNS matrix parameters, including the CP-violating phase. It will also stand ready to observe supernova neutrino bursts, and seeks to observe nucleon decay as a signature of a grand unified theory underlying the standard model. The DUNE far detector implements liquid argon time-projection chamber (LArTPC) technology, and combines the many tens-of-kiloton fiducial mass necessary for rare event searches with the sub-centimeter spatial resolution required to image those events with high precision. The addition of a photon detection system enhances physics capabilities for all DUNE physics drivers and opens prospects for further physics explorations. Given its size, the far detector will be implemented as a set of modules, with LArTPC designs that differ from one another as newer technologies arise. In the vertical drift LArTPC design, a horizontal cathode bisects the detector, creating two stacked drift volumes in which ionization charges drift towards anodes at either the top or bottom. The anodes are composed of perforated PCB layers with conductive strips, enabling reconstruction in 3D. Light-trap-style photon detection modules are placed both on the cryostat's side walls and on the central cathode where they are optically powered. This Technical Design Report describes in detail the technical implementations of each subsystem of this LArTPC that, together with the other far detector modules and the near detector, will enable DUNE to achieve its physics goals

The DUNE Far Detector Vertical Drift Technology, Technical Design Report

International audienceDUNE is an international experiment dedicated to addressing some of the questions at the forefront of particle physics and astrophysics, including the mystifying preponderance of matter over antimatter in the early universe. The dual-site experiment will employ an intense neutrino beam focused on a near and a far detector as it aims to determine the neutrino mass hierarchy and to make high-precision measurements of the PMNS matrix parameters, including the CP-violating phase. It will also stand ready to observe supernova neutrino bursts, and seeks to observe nucleon decay as a signature of a grand unified theory underlying the standard model. The DUNE far detector implements liquid argon time-projection chamber (LArTPC) technology, and combines the many tens-of-kiloton fiducial mass necessary for rare event searches with the sub-centimeter spatial resolution required to image those events with high precision. The addition of a photon detection system enhances physics capabilities for all DUNE physics drivers and opens prospects for further physics explorations. Given its size, the far detector will be implemented as a set of modules, with LArTPC designs that differ from one another as newer technologies arise. In the vertical drift LArTPC design, a horizontal cathode bisects the detector, creating two stacked drift volumes in which ionization charges drift towards anodes at either the top or bottom. The anodes are composed of perforated PCB layers with conductive strips, enabling reconstruction in 3D. Light-trap-style photon detection modules are placed both on the cryostat's side walls and on the central cathode where they are optically powered. This Technical Design Report describes in detail the technical implementations of each subsystem of this LArTPC that, together with the other far detector modules and the near detector, will enable DUNE to achieve its physics goals

The DUNE Far Detector Vertical Drift Technology, Technical Design Report

DUNE is an international experiment dedicated to addressing some of the questions at the forefront of particle physics and astrophysics, including the mystifying preponderance of matter over antimatter in the early universe. The dual-site experiment will employ an intense neutrino beam focused on a near and a far detector as it aims to determine the neutrino mass hierarchy and to make high-precision measurements of the PMNS matrix parameters, including the CP-violating phase. It will also stand ready to observe supernova neutrino bursts, and seeks to observe nucleon decay as a signature of a grand unified theory underlying the standard model. The DUNE far detector implements liquid argon time-projection chamber (LArTPC) technology, and combines the many tens-of-kiloton fiducial mass necessary for rare event searches with the sub-centimeter spatial resolution required to image those events with high precision. The addition of a photon detection system enhances physics capabilities for all DUNE physics drivers and opens prospects for further physics explorations. Given its size, the far detector will be implemented as a set of modules, with LArTPC designs that differ from one another as newer technologies arise. In the vertical drift LArTPC design, a horizontal cathode bisects the detector, creating two stacked drift volumes in which ionization charges drift towards anodes at either the top or bottom. The anodes are composed of perforated PCB layers with conductive strips, enabling reconstruction in 3D. Light-trap-style photon detection modules are placed both on the cryostat's side walls and on the central cathode where they are optically powered. This Technical Design Report describes in detail the technical implementations of each subsystem of this LArTPC that, together with the other far detector modules and the near detector, will enable DUNE to achieve its physics goals

The DUNE Far Detector Vertical Drift Technology, Technical Design Report

International audienceDUNE is an international experiment dedicated to addressing some of the questions at the forefront of particle physics and astrophysics, including the mystifying preponderance of matter over antimatter in the early universe. The dual-site experiment will employ an intense neutrino beam focused on a near and a far detector as it aims to determine the neutrino mass hierarchy and to make high-precision measurements of the PMNS matrix parameters, including the CP-violating phase. It will also stand ready to observe supernova neutrino bursts, and seeks to observe nucleon decay as a signature of a grand unified theory underlying the standard model. The DUNE far detector implements liquid argon time-projection chamber (LArTPC) technology, and combines the many tens-of-kiloton fiducial mass necessary for rare event searches with the sub-centimeter spatial resolution required to image those events with high precision. The addition of a photon detection system enhances physics capabilities for all DUNE physics drivers and opens prospects for further physics explorations. Given its size, the far detector will be implemented as a set of modules, with LArTPC designs that differ from one another as newer technologies arise. In the vertical drift LArTPC design, a horizontal cathode bisects the detector, creating two stacked drift volumes in which ionization charges drift towards anodes at either the top or bottom. The anodes are composed of perforated PCB layers with conductive strips, enabling reconstruction in 3D. Light-trap-style photon detection modules are placed both on the cryostat's side walls and on the central cathode where they are optically powered. This Technical Design Report describes in detail the technical implementations of each subsystem of this LArTPC that, together with the other far detector modules and the near detector, will enable DUNE to achieve its physics goals

The DUNE Far Detector Vertical Drift Technology, Technical Design Report

International audienceDUNE is an international experiment dedicated to addressing some of the questions at the forefront of particle physics and astrophysics, including the mystifying preponderance of matter over antimatter in the early universe. The dual-site experiment will employ an intense neutrino beam focused on a near and a far detector as it aims to determine the neutrino mass hierarchy and to make high-precision measurements of the PMNS matrix parameters, including the CP-violating phase. It will also stand ready to observe supernova neutrino bursts, and seeks to observe nucleon decay as a signature of a grand unified theory underlying the standard model. The DUNE far detector implements liquid argon time-projection chamber (LArTPC) technology, and combines the many tens-of-kiloton fiducial mass necessary for rare event searches with the sub-centimeter spatial resolution required to image those events with high precision. The addition of a photon detection system enhances physics capabilities for all DUNE physics drivers and opens prospects for further physics explorations. Given its size, the far detector will be implemented as a set of modules, with LArTPC designs that differ from one another as newer technologies arise. In the vertical drift LArTPC design, a horizontal cathode bisects the detector, creating two stacked drift volumes in which ionization charges drift towards anodes at either the top or bottom. The anodes are composed of perforated PCB layers with conductive strips, enabling reconstruction in 3D. Light-trap-style photon detection modules are placed both on the cryostat's side walls and on the central cathode where they are optically powered. This Technical Design Report describes in detail the technical implementations of each subsystem of this LArTPC that, together with the other far detector modules and the near detector, will enable DUNE to achieve its physics goals

Impact of cross-section uncertainties on supernova neutrino spectral parameter fitting in the Deep Underground Neutrino Experiment

International audienceA primary goal of the upcoming Deep Underground Neutrino Experiment (DUNE) is to measure the O(10)  MeV neutrinos produced by a Galactic core-collapse supernova if one should occur during the lifetime of the experiment. The liquid-argon-based detectors planned for DUNE are expected to be uniquely sensitive to the νe component of the supernova flux, enabling a wide variety of physics and astrophysics measurements. A key requirement for a correct interpretation of these measurements is a good understanding of the energy-dependent total cross section σ(Eν) for charged-current νe absorption on argon. In the context of a simulated extraction of supernova νe spectral parameters from a toy analysis, we investigate the impact of σ(Eν) modeling uncertainties on DUNE’s supernova neutrino physics sensitivity for the first time. We find that the currently large theoretical uncertainties on σ(Eν) must be substantially reduced before the νe flux parameters can be extracted reliably; in the absence of external constraints, a measurement of the integrated neutrino luminosity with less than 10% bias with DUNE requires σ(Eν) to be known to about 5%. The neutrino spectral shape parameters can be known to better than 10% for a 20% uncertainty on the cross-section scale, although they will be sensitive to uncertainties on the shape of σ(Eν). A direct measurement of low-energy νe-argon scattering would be invaluable for improving the theoretical precision to the needed level

The DUNE Far Detector Vertical Drift Technology, Technical Design Report

International audienceDUNE is an international experiment dedicated to addressing some of the questions at the forefront of particle physics and astrophysics, including the mystifying preponderance of matter over antimatter in the early universe. The dual-site experiment will employ an intense neutrino beam focused on a near and a far detector as it aims to determine the neutrino mass hierarchy and to make high-precision measurements of the PMNS matrix parameters, including the CP-violating phase. It will also stand ready to observe supernova neutrino bursts, and seeks to observe nucleon decay as a signature of a grand unified theory underlying the standard model. The DUNE far detector implements liquid argon time-projection chamber (LArTPC) technology, and combines the many tens-of-kiloton fiducial mass necessary for rare event searches with the sub-centimeter spatial resolution required to image those events with high precision. The addition of a photon detection system enhances physics capabilities for all DUNE physics drivers and opens prospects for further physics explorations. Given its size, the far detector will be implemented as a set of modules, with LArTPC designs that differ from one another as newer technologies arise. In the vertical drift LArTPC design, a horizontal cathode bisects the detector, creating two stacked drift volumes in which ionization charges drift towards anodes at either the top or bottom. The anodes are composed of perforated PCB layers with conductive strips, enabling reconstruction in 3D. Light-trap-style photon detection modules are placed both on the cryostat's side walls and on the central cathode where they are optically powered. This Technical Design Report describes in detail the technical implementations of each subsystem of this LArTPC that, together with the other far detector modules and the near detector, will enable DUNE to achieve its physics goals

Performance of a modular ton-scale pixel-readout liquid argon time projection chamber

International audienceThe Module-0 Demonstrator is a single-phase 600 kg liquid argon time projection chamber operated as a prototype for the DUNE liquid argon near detector. Based on the ArgonCube design concept, Module-0 features a novel 80k-channel pixelated charge readout and advanced high-coverage photon detection system. In this paper, we present an analysis of an eight-day data set consisting of 25 million cosmic ray events collected in the spring of 2021. We use this sample to demonstrate the imaging performance of the charge and light readout systems as well as the signal correlations between the two. We also report argon purity and detector uniformity measurements, and provide comparisons to detector simulations