448 research outputs found

    Macroeconomic Determinants of Real Wages in an Internationally Integrated Economy, Mexico 1998.1 - 2011.4

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    The objective of the current document is to analyze the macroeconomic determinants of real wages in Mexico, an economy with a high degree of integration with the US, under the Hypotheses of Rational Expectations, through the Generalized Method of Moments (GMM). We estimated an ad hoc wage-setting equation, to the Mexican economy. The outcomes validate the existence of a Phillips curve and show that the unemployment is the most important variable in determining the real salary rates. However, productivity keeps a close relation with wages, while the inflation expectations play a secondary role in determining them

    Impacto de la implementación del aplicativo mHealth en el monitoreo de pacientes con ansiedad de un centro de salud mental, Ica, 2022

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    Hoy en día, el creciente aumento de la presencia tecnológica en los sectores del ser humano es evidente, dado que se utilizan para realizar dichas prácticas, es muy eficiente y eficaz, incluso en ocasiones mejora esos procesos. Bastantes sectores han optado por la utilización de TIC, mHealth es un ejemplo de esto aplicando tecnologías móviles al sector público. En esta investigación se buscará implementar un aplicativo mHealth para determinar el impacto que se tiene en el monitoreo de pacientes con ansiedad. Para este propósito se ha desarrollado un prototipo que cumplirá dichas funciones el cual tuvo como resultado un aumento en la conformidad del tratamiento en los pacientes. Esta tesis es de tipo cuantitativa preexperimental, cuya muestra será de tipo poblacional. En conclusión, podemos observar que la aplicación de mHealth si puede ayudar de manera positiva a mejorar notablemente el monitoreo de los pacientes con ansiedad

    Reconocimiento de los saberes campesinos a través del mapeo comunitario participativo. Paipa-Colombia

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    This document develops a participatory mapping social exercise as a strategy to recognize the local farmers’ knowledge at the Caños Village, in Paipa-Colombia. Agricultural activities and practices were identified to comparatively expose farmers’ experiences with the traditional knowledge they have. At methodological level, community participation workshops, participant observation, and semi-structured interviews were used to assess the degree of transformation of the farmers’ labor. The main results showed that there was a change in the local knowledge of farmers surrounding agricultural production. This affects the frequency of famers rural work through newly acquired rural knowledge, habits, and practices. This causes a loss in the neighborhood networks as well as the revaluation of the farmer’s rural work. Finally, it is recognized that there is a transformation in the conception of the farmer regarding their relationship with nature and their practices of territorial production.El presente documento desarrolla un ejercicio de mapeo comunitario participativo como estrategia en el reconocimiento de los saberes locales de campesinos en la vereda de Caños, municipio de Paipa-Colombia. Se identificaron actividades y prácticas agropecuarias, con el fin de exponer de forma comparativa sus experiencias con aquellos saberes tradicionales que habitualmente realizan. A nivel metodológico se emplearon talleres de participación comunitaria, observación participante, y entrevistas semiestructuradas que evalúan el grado de transformación de la labor campesina. Como principales resultados, se asocian factores de cambio en los saberes locales introducidos por otras formas de producción agropecuaria. De esta manera, se posesionan otros saberes, hábitos y prácticas rurales diferentes que inciden en la frecuencia de productos y cultivos-sembrados, ocasionando la perdida en las redes vecinales, al igual que, la revalorización de su quehacer rural. Finalmente, se reconoce que existe una transformación en la concepción del campesino frente a su relación con la naturaleza y sus prácticas de producción territorial

    SCG0018-4854: a young and dynamic compact group I. Kinematical analysis

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    Compact groups of galaxies are in particular good laboratories for studying galaxy interactions and their effects on the evolution of galaxies due to their high density and low velocity dispersion. SCG0018-4854 is a remarkably high galaxy density and low velocity dispersion group with evidence of a recent interaction. We obtained VLT FORS2 optical observations and we present spectroscopic and photometric evidence of how dramatically galaxy interactions have affected each of the four member galaxies. We found peculiar kinematics for each galaxy and evidence of recent star formation. In particular, the gas and stellar radial velocity curves of two galaxies are irregular with a level of asymmetry similar to that of other interacting galaxies. We discovered the presence of a bar for NGC 92 therefore revising a previous morphological classification and we obtained spectroscopic confirmation of a galactic-scale outflow of NGC 89. Peculiar kinematics and dynamic consideration lead to a rough estimate of the age of the latest interaction: 0.2-0.7 Gyr, suggesting that SCG0018-4854 is a young and dynamical group.Comment: 11 pages, 12 figures, to be published in A&

    ECLIM-SEHOP, a new platform to set up and develop international academic clinical trials for childhood cancer and blood disorders in Spain

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    Introduction: Cancer and blood disorders in children are rare. The progressive improvement in survival over the last decades largely relies on the development of international academic clinical trials that gather the sufcient number of patients globally to elaborate solid conclusions and drive changes in clinical practice. The participation of Spain into large international academic trials has traditionally lagged behind of other European countries, mainly due to the burden of administrative tasks to open new studies, lack of fnancial support and limited research infrastructure in our hospitals. Methods: The objective of ECLIM-SEHOP platform (Ensayos Clínicos Internacionales Multicéntricos-SEHOP) is to overcome these difculties and position Spain among the European countries leading the advances in cancer and blood disorders, facilitate the access of our patients to novel diagnostic and therapeutic approaches and, most importantly, continue to improve survival and reducing long-term sequelae. ECLIM-SEHOP provides to the Spanish clinical investigators with the necessary infrastructural support to open and implement academic clinical trials and registries. Results: In less than 3 years from its inception, the platform has provided support to 20 clinical trials and 8 observational studies, including 8 trials and 4 observational studies where the platform performs all trial-related tasks (integral support: trial setup, monitoring, etc.) with more than 150 patients recruited since 2017 to these studies. In this manuscript, we provide baseline metrics for academic clinical trial performance that permit future comparisons. Conclusions: ECLIM-SEHOP facilitates Spanish children and adolescents diagnosed with cancer and blood disorders to access state-of-the-art diagnostic and therapeutic strategies

    Fecundity selection theory: concepts and evidence

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    Fitness results from the optimal balance between survival, mating success and fecundity. The interactions between these three components of fitness vary importantly depending on the selective context, from positive covariation between them, to antagonistic pleiotropic relationships when fitness increases in one reduce fitness of others. Therefore, elucidating the routes through which selection shapes life history and phenotypic adaptations via these fitness components is of primary significance to understand ecological and evolutionary dynamics. However, while the fitness components mediated by natural (survival) and sexual (mating success) selection have extensively been debated from most possible perspectives, fecundity selection remains considerably less studied. Here, we review the theory, evidence and implications of fecundity selection as a driver of sex-specific adaptive evolution. Based on accumulating literature on the life-history, phenotypic and ecological aspects of fecundity, we (i) suggest that ‘fecundity’ is restricted to refer to brood size per reproductive episode, while ‘annual’ and ‘lifetime fecundity’ should not be used interchangeably with ‘fecundity’ as they represent different life history parameters; (ii) provide a generalized redefinition of fecundity selection that encompasses any traits that influence fecundity in any direction (from high to low) and in either sex; (iii) review the (macro)ecological basis of fecundity selection (e.g., ecological pressures that influence predictable spatial variation in fecundity); (iv) suggest that most ecological theories of fecundity selection should be tested in organisms other than birds; (v) argue that the longstanding fecundity selection hypothesis of female-biased sexual size dimorphism (SSD) has gained inconsistent support, that strong fecundity selection does not necessarily drive female-biased SSD, and that this form of SSD can be driven by other selective pressures; and (vi) discuss cases in which fecundity selection operates on males

    Observation of the Rare Decay of the η Meson to Four Muons

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    A search for the rare η→μ+μ−μ+μ− double-Dalitz decay is performed using a sample of proton-proton collisions, collected by the CMS experiment at the CERN LHC with high-rate muon triggers during 2017 and 2018 and corresponding to an integrated luminosity of 101  fb−1. A signal having a statistical significance well in excess of 5 standard deviations is observed. Using the η→μ+μ− decay as normalization, the branching fraction B(η→μ+μ−μ+μ−)=[5.0±0.8(stat)±0.7(syst)±0.7(B2μ)]×10−9 is measured, where the last term is the uncertainty in the normalization channel branching fraction. This work achieves an improved precision of over 5 orders of magnitude compared to previous results, leading to the first measurement of this branching fraction, which is found to agree with theoretical predictions

    Search for new physics in multijet events with at least one photon and large missing transverse momentum in proton-proton collisions at 13 TeV

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    A search for new physics in final states consisting of at least one photon, multiple jets, and large missing transverse momentum is presented, using proton-proton collision events at a center-of-mass energy of 13 TeV. The data correspond to an integrated luminosity of 137 fb−1, recorded by the CMS experiment at the CERN LHC from 2016 to 2018. The events are divided into mutually exclusive bins characterized by the missing transverse momentum, the number of jets, the number of b-tagged jets, and jets consistent with the presence of hadronically decaying W, Z, or Higgs bosons. The observed data are found to be consistent with the prediction from standard model processes. The results are interpreted in the context of simplified models of pair production of supersymmetric particles via strong and electroweak interactions. Depending on the details of the signal models, gluinos and squarks of masses up to 2.35 and 1.43 TeV, respectively, and electroweakinos of masses up to 1.23 TeV are excluded at 95% confidence level

    Observation of four top quark production in proton-proton collisions at √s = 13 TeV

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    Search for Scalar Leptoquarks Produced via τ-Lepton-Quark Scattering in pppp Collisions at s=13TeV\sqrt{s}=13 TeV

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    The first search for scalar leptoquarks produced in τ-lepton–quark collisions is presented. It is based on a set of proton-proton collision data recorded with the CMS detector at the LHC at a center-of-mass energy of 13 TeV corresponding to an integrated luminosity of 138  fb1^{−1}. The reconstructed final state consists of a jet, significant missing transverse momentum, and a τ lepton reconstructed through its hadronic or leptonic decays. Limits are set on the product of the leptoquark production cross section and branching fraction and interpreted as exclusions in the plane of the leptoquark mass and the leptoquark-τ-quark coupling strength
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