Hay lugar para las famílias en la educación secundaria? Percepciones y propuestas para una transformación del programa institucional de los centros educativos

Las respuestas a un cuestionario realizado al inicio de una investigación-acción en diferentes institutos de secundaria, nos muestran las opiniones que el profesorado de estos centros tiene acerca de la relación con las familias. Se trataba no sólo de conocer los puntos de vista de los y las docentes sino de utilizarlos en el claustro de los centros implicados para abrir un proceso de reflexión y de implementación de propuestas pedagógicas dirigidas a modificar aspectos de la cultura escolar. Todo ello en beneficio de una relación más fluida y, a la vez, más profunda, con las familias. Precisamente, el papel y el lugar de las familias en los institutos supone una de las claves para avanzar hacia un nuevo programa institucional en los centros de secundaria, una reinstitucionalización que tendría que situar en el centro de las preocupaciones docentes, la vinculación con las familias y la comunidad, aspecto indispensable para la mejora de los aprendizajes de todo el alumnado

De la “gobernanza instrumental mutua” a la “gobernanza del bien común” : hacia unas nuevas relaciones entre universidades y ciudades.

The paper aims, first of all, to present the traditional models from which university governance related to community are thought and enact: the “instrumental governance” and the “shared governance or civic engagement”. Secondly, the article shows the theoretical bases of the emergent model of “the common good university governance” based on both the “common good” approach, the Education Cities chart and the UNESCO rapport about education as a global common good. The emergent model of “common good university governance” transforms high education institutions nature and orients them to contribute relevantly to the right to education for all citizens. The paper discusses strengths and weakness of the three models and of some of their most well-known implementations. The paper finishes with a proposal of social and academic debate about five dimensions of this university – community relationship from the common good model: tracking; economy – production; cooperation in knowledge production; research and knowledge transfer; and some transversal issues.En este artículo sobre la gobernanza universitaria y su relación con el territorio, en primer lugar, se presentan los dos modelos tradicionales de gobernanza universitaria: la instrumental y la compartida o de “civic engagement”. En un segundo momento, se presentan las bases conceptuales de un tercer modelo emergente de “gobernanza del bien común”, basadas en las teorías del bien común, la propuesta de la UNESCO de la “educación como bien común mundial” y la carta de Ciudades Educadoras. Un modelo en el cual las universidades devienen un bien común de la ciudad que puede y debe contribuir de manera notable al derecho a las educaciones de toda la ciudadanía. El artículo debate las fortalezas y debilidades mostradas por los tres modelos y sus implementaciones más relevantes. Para finalizar, se presenta una propuesta para el debate académico y social de cinco ámbitos de actuación en los que se podrían concretar las relaciones entre universidades y ciudades basadas en el modelo de “gobernanza del bien común”: el formativo; el productivo - económico; el de co-construcción de conocimiento; del de investigación y transferencia de conocimiento; y uno final de elementos transversales

3D Magnetotelluric Modeling Using High-Order Tetrahedral Nédélec Elements on Massively Parallel Computing Platforms

We present a routine for 3D magnetotelluric (MT) modeling based upon high-order edge finite element method (HEFEM), tailored and unstructured tetrahedral meshes, and high-performance computing (HPC). This implementation extends the PETGEM modeller capabilities, initially developed for active-source electromagnetic methods in frequency-domain. We assess the accuracy, robustness, and performance of the code using a set of reference models developed by the MT community in well-known reported workshops. The scale and geological properties of these 3D MT setups are challenging, making them ideal for addressing a rigorous validation. Our numerical assessment proves that this new algorithm can produce the expected solutions for arbitrarily 3D MT models. Also, our extensive experimental results reveal four main insights: (1) high-order discretizations in conjunction with tailored meshes can offer excellent accuracy; (2) a rigorous mesh design based on the skin-depth principle can be beneficial for the solution of the 3D MT problem in terms of numerical accuracy and run-time; (3) high-order polynomial basis functions achieve better speed-up and parallel efficiency ratios than low-order polynomial basis functions on cutting-edge HPC platforms; (4) a triple helix approach based on HEFEM, tailored meshes, and HPC can be extremely competitive for the solution of realistic and complex 3D MT models and geophysical electromagnetics in general.This project has been 65% cofinanced by the European Regional Development Fund (ERDF) through the Interreg V-A Spain–France– Andorra program (POCTEFA2014-2020). POCTEFA aims to reinforce the economic and social integration of the French–Spanish–Andorran border. Its support is focused on developing economic, social and environmental cross-border activities through joint strategies favoring sustainable territorial development. BSC authors received funding from the European Union’s Horizon 2020 programme, grant agreement N◦828947 and N◦777778, and from the Mexican Department of Energy, CONACYT-SENER Hidrocarburos grant agreement N◦B-S-69926

Measurements of the suppression and correlations of dijets in Xe+Xe collisions at Formula Presented TeV

Measurements of the suppression and correlations of dijets is performed using 3 µ b − 1 of Xe+Xe data at s N N = 5.44 TeV collected with the ATLAS detector at the CERN Large Hadron Collider. Dijets with jets reconstructed using the R = 0.4 anti- k t algorithm are measured differentially in jet p T over the range of 32 to 398 GeV and the centrality of the collisions. Significant dijet momentum imbalance is found in the most central Xe+Xe collisions, which decreases in more peripheral collisions. Results from the measurement of per-pair normalized and absolutely normalized dijet p T balance are compared with previous Pb + Pb measurements at s N N = 5.02 TeV. The differences between the dijet suppression in Xe+Xe and Pb + Pb are further quantified by the ratio of pair nuclear-modification factors. The results are found to be consistent with those measured in Pb + Pb data when compared in classes of the same event activity and when taking into account the difference between the center-of-mass energies of the initial parton scattering process in Xe+Xe and Pb + Pb collisions. These results should provide input for a better understanding of the role of energy density, system size, path length, and fluctuations in the parton energy loss

Search for supersymmetry in final states with missing transverse momentum and three or more b-jets in 139 fb-1 of proton–proton collisions at √s=13 TeV with the ATLAS detector

A search for supersymmetry involving the pair production of gluinos decaying via off-shell third-generation squarks into the lightest neutralino (χ~10) is reported. It exploits LHC proton–proton collision data at a centre-of-mass energy s=13 TeV with an integrated luminosity of 139 fb collected with the ATLAS detector from 2015 to 2018. The search uses events containing large missing transverse momentum, up to one electron or muon, and several energetic jets, at least three of which must be identified as containing b-hadrons. Both a simple kinematic event selection and an event selection based upon a deep neural-network are used. No significant excess above the predicted background is found. In simplified models involving the pair production of gluinos that decay via off-shell top (bottom) squarks, gluino masses less than 2.44 TeV (2.35 TeV) are excluded at 95% CL for a massless χ~10. Limits are also set on the gluino mass in models with variable branching ratios for gluino decays to bb¯χ~10,tt¯χ~10 and tb¯χ~1-/t¯bχ~1+

Search for dark matter produced in association with a single top quark and an energetic W boson in √s= 13 TeV pp collisions with the ATLAS detector

This paper presents a search for dark matter, χ , using events with a single top quark and an energetic W boson. The analysis is based on proton–proton collision data collected with the ATLAS experiment at s= 13 TeV during LHC Run 2 (2015–2018), corresponding to an integrated luminosity of 139 fb . The search considers final states with zero or one charged lepton (electron or muon), at least one b-jet and large missing transverse momentum. In addition, a result from a previous search considering two-charged-lepton final states is included in the interpretation of the results. The data are found to be in good agreement with the Standard Model predictions and the results are interpreted in terms of 95% confidence-level exclusion limits in the context of a class of dark matter models involving an extended two-Higgs-doublet sector together with a pseudoscalar mediator particle. The search is particularly sensitive to on-shell production of the charged Higgs boson state, H , arising from the two-Higgs-doublet mixing, and its semi-invisible decays via the mediator particle, a: H→ Wa(→ χχ) . Signal models with H masses up to 1.5 TeV and a masses up to 350 GeV are excluded assuming a tan β value of 1. For masses of a of 150 (250) GeV, tan β values up to 2 are excluded for H masses between 200 (400) GeV and 1.5 TeV. Signals with tan β values between 20 and 30 are excluded for H masses between 500 and 800 GeV

Measurements of W+W- production in decay topologies inspired by searches for electroweak supersymmetry

This paper presents a measurement of fiducial and differential cross-sections for WW production in proton–proton collisions at s=13 TeV with the ATLAS experiment at the Large Hadron Collider using a dataset corresponding to an integrated luminosity of 139 fb . Events with exactly one electron, one muon and no hadronic jets are studied. The fiducial region in which the measurements are performed is inspired by searches for the electroweak production of supersymmetric charginos decaying to two-lepton final states. The selected events have moderate values of missing transverse momentum and the ‘stransverse mass’ variable m , which is widely used in searches for supersymmetry at the LHC. The ranges of these variables are chosen so that the acceptance is enhanced for direct WW production and suppressed for production via top quarks, which is treated as a background. The fiducial cross-section and particle-level differential cross-sections for six variables are measured and compared with two theoretical SM predictions from perturbative QCD calculations

Correlations between flow and transverse momentum in Xe + Xe and Pb + Pb collisions at the LHC with the ATLAS detector: A probe of the heavy-ion initial state and nuclear deformation

The correlations between flow harmonics v for n = 2, 3, and 4 and mean transverse momentum [p] in Xe + Xe and Pb + Pb collisions at s = 5.44 and 5.02 TeV, respectively, are measured using charged particles with the ATLAS detector. The correlations are potentially sensitive to the shape and size of the initial geometry, nuclear deformation, and initial momentum anisotropy. The effects from nonflow and centrality fluctuations are minimized, respectively, via a subevent cumulant method and an event-activity selection based on particle production at very forward rapidity. The v-[p] correlations show strong dependencies on centrality, harmonic number n, p, and pseudorapidity range. Current models qualitatively describe the overall centrality- and system-dependent trends but fail to quantitatively reproduce all features of the data. In central collisions, where models generally show good agreement, the v-[p] correlations are sensitive to the triaxiality of the quadruple deformation. Comparison of the model with the Pb + Pb and Xe + Xe data confirms that the Xe nucleus is a highly deformed triaxial ellipsoid that has neither a prolate nor oblate shape. This provides strong evidence for a triaxial deformation of the Xe nucleus from high-energy heavy-ion collisions

Search for a new scalar resonance in flavour-changing neutral-current top-quark decays t → qX (q = u, c), with X → bb¯ , in proton-proton collisions at √s = 13 TeV with the ATLAS detector

A search for flavour-changing neutral-current decays of a top quark into an up-type quark (either up or charm) and a light scalar particle X decaying into a bottom anti-bottom quark pair is presented. The search focuses on top-quark pair production where one top quark decays to qX, with X → bb¯ , and the other top quark decays according to the Standard Model, with the W boson decaying leptonically. The final state is thus characterised by an isolated electron or muon and at least four jets. Events are categorised according to the multiplicity of jets and jets tagged as originating from b-quarks, and a neural network is used to discriminate between signal and background processes. The data analysed correspond to 139 fb of proton–proton collisions at a centre-of-mass energy of 13 TeV, recorded with the ATLAS detector at the LHC. The 95% confidence-level upper limits between 0.019% and 0.062% are derived for the branching fraction B (t → uX) and between 0.018% and 0.078% for the branching fraction B (t → cX), for masses of the scalar particle X between 20 and 160 GeV. [Figure not available: see fulltext.

Exclusive dielectron production in ultraperipheral Pb+Pb collisions at √sNN = 5.02 TeV with ATLAS

Exclusive production of dielectron pairs, γγ → e e , is studied using L = 1.72 nb of data from ultraperipheral collisions of lead nuclei at sNN = 5.02 TeV recorded by the ATLAS detector at the LHC. The process of interest proceeds via photon–photon interactions in the strong electromagnetic fields of relativistic lead nuclei. Dielectron production is measured in the fiducial region defined by following requirements: electron transverse momentum pTe > 2.5 GeV, absolute electron pseudorapidity |η | 5 GeV, and dielectron transverse momentum pTee < 2 GeV. Differential cross-sections are measured as a function of m, average pTe , absolute dielectron rapidity |y|, and scattering angle in the dielectron rest frame, |cos θ |, in the inclusive sample, and also with a requirement of no activity in the forward direction. The total integrated fiducial cross-section is measured to be 215±1(stat.)−20+23(syst.)±4(lumi.) μb. Within experimental uncertainties the measured integrated cross-section is in good agreement with the QED predictions from the Monte Carlo programs Starlight and SuperChic, confirming the broad features of the initial photon fluxes. The differential cross-sections show systematic differences from these predictions which are more pronounced at high |y | and |cos θ | values. [Figure not available: see fulltext.]