945 research outputs found

    Estación depuradora aguas residuales

    No full text
    Código de proyecto: ICA 12206F. Javier Vicente Gomez; director de proyecto: Esther Pérez Arellano.Curso 2012-2013Ingeniería de Caminos, Canales y Puertos (ICA)Escuela Politécnica Superio

    Estudio epidemiológico de la osteorporosis en la población española con artritis reumatoide

    No full text
    Tesis doctoral inédita leída en la Universidad Autónoma de Madrid, Facultad de Medicina. Departamento de Medicina. Fecha de lectura: 19 de Junio 200

    Ultrasound evaluation of interstitial lung disease in rheumatoid arthritis and autoimmune diseases

    No full text
    Lung ultrasound; Rheumatoid arthritis; Autoimmune diseasesEcografia pulmonar; Artritis reumatoide; Malalties autoimmunesEcografía pulmonar; Artritis reumatoide; Enfermedades autoinmunesThe interpretation of lung ultrasound (US) is the result of the analysis of artifacts, rather than exact representations of anatomical structures, which appear when changes in the physical properties of the lung occur. Its application to the study of interstitial lung disease (ILD) associated with autoimmune diseases has aroused great interest in the last 10 years, as evidenced by a growing number of publications studying its usefulness in the diagnostic process, as a prognostic marker, and as an aid in monitoring of patients. The main elements in lung US interpretation in ILD are the B lines and the changes in the pleural line. B lines are vertical artifacts that are generated when there is a partial decrease in the air content of the lung parenchyma and/or the volume of the interstitial area expands. Pleural line alterations that can be seen are irregularities, thickening, fragmentation, or subpleural nodules. Both the B lines and the changes in the pleural line have shown a significant positive correlation with the evidence on chest computed tomography (high-resolution computed tomography [HRCT]) of ILD associated with autoimmune diseases, with sensitivity and negative predictive values of up to 100%. These results, together with the safety, accessibility, and low cost of lung US, support this imaging technique as a promising screening method for optimizing the indication for HRCT. The role of lung US regarding sensitivity to change needs further investigation with multicenter prospective studie

    Prólogos del DRAE (1780–2001): cánones formales y de contenido

    No full text
    Los autores analizan críticamente el lugar de la ideología en las obras lexicográficas y la trascendencia que en el caso del español se debe a una koiné culta académica y propia, de raíz fundamentalmente castellana, cuyo valor como modelo se ha impuesto en las obras más actuales tanto por su dimensión descodificadora (fundamentalmente semántica) como por haber fijado su función codificador

    Utilisation of primary healthcare services by Sjögren's syndrome patients in the Community of Madrid and associated factors: a population-based cross-sectional study

    No full text
    Objective To describe the utilisation of primary health care (PHC) services and factors associated with its use by patients diagnosed with Sjögren’s syndrome (SS). Methods Population-based cross-sectional cohort of SS patients in Madrid, Spain (SIERMA). Sociodemographic, diagnostic, clinical and PHC service utilisation variables were studied by bivariate analyses and regression models. Results A total of 4,778 SS patients were included, 65.2% classified as primary SS (pSS), while 34.8% associated with another autoimmune disease (associated SS). Mean age was 64.3 years, and 92.8% of the patients were women. A total of 87.5% used PHC services, with a mean of 19.8 consultations/year. The general practitioner was the most visited health professional, with a mean of 10.9 consultations/year, followed by the nurse, with a mean of 5.7. Characteristics associated with a greater use of PHC services in SS patients were associated SS, higher adjusted morbidity groups (AMG) risk level and older age. Additional factors included symptoms such as dry mouth, fatigue, dry vagina and joint and muscle pain; comorbidities such as atrial fibrillation, diabetes, hypertension, solid malignant neoplasms, coronary heart disease and chronic obstructive pulmonary disease; and treatments such as sterile saline solution, corticosteroids, opioids and biologic disease-modifying anti-rheumatic drugs. Conclusion Most SS patients used PHC services during the study period, and the mean number of consultations was remarkably high. Utilisation was mainly associated with AMG risk level, ageing, glandular and extra-glandular symptoms, substantial comorbidities and various treatments. An optimised design of PHC policies will facilitate early diagnosis, improved management and better quality of life for SS patients

    Métricas de autor Norhy Esther Torregrosa Jiménez

    No full text
    Informe de las métricas de autor de la Dra. Norhy Esther Torregrosa Jiménez de las publicaciones indexadas en Google Académico cuyo objetivo es entregar un insumo para el fortalecimiento de las capacidades y potencialidades de los autores de la Universidad Santo Tomás en el posicionamiento y visibilidad de sus publicacionesReport of the author metrics of Norhy Esther Torregrosa Jiménez of the publications indexed in Google Scholar whose objective is to provide an input for the strengthening of the capacities and potentialities of the authors of the Santo Tomás University in the positioning and visibility of their publications.http://unidadinvestigacion.usta.edu.c

    Effects of outliers on the identification and estimation of GARCH models

    No full text
    This paper analyses how outliers affect the identification of conditional heteroscedasticity and the estimation of generalized autoregressive conditionally heteroscedastic (GARCH) models. First, we derive the asymptotic biases of the sample autocorrelations of squared observations generated by stationary processes and show that the properties of some conditional homoscedasticity tests can be distorted. Second, we obtain the asymptotic and finite sample biases of the ordinary least squares (OLS) estimator of ARCH(p) models. The finite sample results are extended to generalized least squares (GLS), maximum likelihood (ML) and quasi-maximum likelihood (QML) estimators of ARCH(p) and GARCH(1,1) models. Finally, we show that the estimated asymptotic standard deviations are biased estimates of the sample standard deviations. Copyright 2007 The Authors Journal compilation 2007 Blackwell Publishing Ltd.

    Usefulness of Lung Ultrasound as a Method for Early Diagnosis of Interstitial Lung Disease in Patients with Rheumatoid Arthritis

    No full text
    Pedro Santos-Moreno,1 Maria Fernanda Linares-Contreras,1 Gabriel-Santiago Rodríguez-Vargas,2 Pedro Rodríguez-Linares,2 Abdón Mata-Hurtado,3 Linda Ibatá,4 Susan Martínez,4 Adriana Rojas-Villarraga,1,5 Mario Diaz,1 Esther F Vicente-Rabaneda,6 Maritza Quintero,7 Ingrid Möller7 1Rheumatology Department, Biomab IPS, Bogotá, Colombia; 2Research department, Biomab IPS, Bogotá, Colombia; 3Fundación Neumológica Colombiana, Bogotá, Colombia; 4Epidemiology department, Biomab IPS, Bogotá, Colombia; 5Research Institute, Fundación Universitaria de Ciencias de La Salud – FUCS, Bogotá, Colombia; 6Rheumatology, Hospital Universitario La Princesa, Madrid, Spain; 7POAL Rheumatology Institute, Rheumatology, Barcelona, SpainCorrespondence: Pedro Santos-Moreno, Rheumatology department, Biomab IPS, 48th Street &num;13-86, Bogotá, 110221, Colombia, Tel +57 320 8094232, Email [email protected]: To determine the value of lung ultrasound (LUS) compared to high-resolution computed tomography (HRCT) in the early diagnosis of interstitial lung disease (ILD) in patients with rheumatoid arthritis (RA).Patients and Methods: An observational prospective study was performed. Were included patients with respiratory symptoms or/and, patients with crackles in auscultation during medical consultation. All patients underwent to chest X-rays, LUS, HRCT,and respiratory function tests.Results: A total of 192 patients with RA were included. Mean disease duration was 16.8 ± 11.1 years. 72% were positive for rheumatoid factor or anti-citrullinated antibodies. Of the total number of subjects, 54.7% had respiratory symptoms. The other patients did not have respiratory symptoms, but they did have had crackles on pulmonary auscultation. B lines > 11.5 on the ROC curve predicted ILD (AUC 0.63; CI 95%: 0.55– 0.71; p < 0.003). A DLCO value of < 7.13 significantly predicted the presence of ILD (AUC 0.61; 95% CI: 0.52– 0.70; p < 0.028).Conclusion: The findings of this study suggest that LUS is a valuable tool for the early diagnosis of ILD in patients with RA, and together with DLCO, can adequately predict the presence of ILD in this population. LUS also helps to determine which patients with respiratory symptoms and signs suggestive for ILD are undergo to HRCT.Keywords: rheumatoid arthritis, interstitial lung diseases, respiratory function test
    corecore