89 research outputs found
Short-Term Effects of Mitigation Measures for the Containment of the COVID-19 Outbreak: An Experience from Northern Italy
Materialización del Sistema de Referencia Terrestre Internacional en Argentina mediante observaciones GPS
El Sistema de Posicionamiento Global GPS permite el cálculo de la posición de un usuario en forma instantánea durante las 24 horas del dÃa y en cualquier parte del mundo con una exactitud de decenas de metros respecto de un sistema de referencia global. Mediante técnicas de medición y post procesamiento adecuadas, se logra un posicionamiento con exactitud de pocos centÃmetros. Esta capacidad de GPS es aprovechada para el establecimiento del Marco de Referencia Terrestre Internacional (ITRF), una de cuyas aplicaciones es unificar las referencias geométricas de los paÃses a escala global con una exactitud centimétrica. Las investigaciones tendientes a mejorar el modelo de las observaciones GPS aportan a su vez nuevos conocimientos sobre el comportamiento de la ionosfera y troposfera, responsables de retardos significativos en las señales y sobre la tectónica global y efectos de carga por mareas, responsables de movimientos mensurables de las estaciones receptoras. El sistema de referencia de la Argentina ha cambiado en la última década, pasando de Inchauspe'69, local y con errores relativos de 3 a 10 partes por millón, a POSGAR'94, que materializa al sistema global con una exactitud submétrica y tiene errores relativos de 1 ppm. En el mismo perÃodo se estableció en Sudamérica la red SIRGAS, que en particular en la Argentina permite acceder al Marco de Referencia Terrestre Internacional (ITRF) con una exactitud centimétrica a través de diez puntos. El resultado principal de ese trabajo es el nuevo marco de referencia POSGAR´98, que constituye la densificación argentina del marco SIRGAS 95 y materializa al Sistema de Referencias Terrestre Internacional (ITRS) con una exactitud de pocos centÃmetros. Fue calculado aplicando el estado del arte del procesamiento de observaciones GPS y su exactitud fue inferida a partir de comparaciones con observaciones independientes procesadas con la misma metodologÃa. Se compara este nuevo marco con el oficial, POSGAR'94, y se ilustran mediante ejemplos con redes geodésicas existentes en los casos en que serÃa ventajoso utilizar POSGAR'98 como control geodésico. Se presenta también una metodologÃa para el análisis de los residuos del ajuste de observaciones GPS. Se muestra que este método constituye una herramiénta útil para analizar las deficiencias remanentes en el modelo de las observaciones con el objeto de orientar la investigación para el aumento de la exactitud de los resultados.Facultad de Ciencias Astronómicas y GeofÃsica
Recent rapid changes in the spatio-temporal distribution of West Nile Neuro-invasive Disease in Italy
Socioeconomic inequalities in reproductive outcomes in the Italian NINFEA birth cohort and the Piedmont Birth Registry
Sex differences in use of interventional cardiology persist after risk adjustment
BACKGROUND: Studies from several countries have documented gender disparities in the management of coronary artery disease. Whether such gender disparities are seen in Italy and, if so, whether they can be explained by factors such as age and severity of illness were investigated. METHODS: 77 974 Piedmontese patients, admitted between 1999 and 2002, with a primary diagnosis of myocardial infarction (ICD 410), angina (ICD 413), chronic ischaemia (ICD 414) and chest pain (ICD 786.5) were studied. The number of men and women undergoing surgical treatment was extracted and the male-female odds ratios calculated. Several risk factors and a risk adjustment technique (APR-DRG) were used to control for possible confounders. Backward stepwise multiple logistic regression was used to adjust for significant covariates. RESULTS: Crude analysis demonstrated that gender is a discriminating factor in the probability of surgery (OR 2.11, 95% CI 2.04 to 2.19), with similar findings among those with each main diagnosis. The odds ratios decreased after adjustment for age, co-morbidity and disease severity but remained significant. CONCLUSIONS: Men and women admitted to hospitals in a region of northern Italy with a diagnosis of cardiovascular disease are treated differently and this cannot be explained by age or severity of disease
Integrating environmental, entomological, animal, and human data to model the Leishmania infantum transmission risk in a newly endemic area in Northern Italy
Mobility trends of Patients across Italian Regions: implications for planning and evaluation of hospital services
The study of patients' mobility is useful for health planning and identifying deficiencies in care supply. The Italian Health Service, with 21 different regional realities, can be considered as a macrocosmic test bench. Our study aims: (1) to describe the trend of patients' hospital mobility across the Italian Regions; (2) to offer an immediate visual approach for decision making; (3) to identify some factors involved in patient's mobility
An investigation into CLIL-related sections of EFL coursebooks : issues of CLIL inclusion in the publishing market
The current ELT global coursebook market has embraced CLIL as a weak form of bilingual education and an innovative component to include in General English coursebooks for EFL contexts. In this paper I investigate how CLIL is included in ELT coursebooks aimed at
teenaged learners, available to teachers in Argentina. My study is based on the content analysis of four series which include a section advertised as CLIL-oriented. Results suggest that such sections are characterised by (1) little correlation between featured subject specific content and school curricula in L1, (2) oversimplification of contents, and (3) dominance of reading skills development and lower-order thinking tasks. Through this study, I argue that
CLIL components become superficial supplements rather than a meaningful attempt to promote weak forms of bilingual education
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