3,292 research outputs found

    El Mobile Learning en el aula de ELE. Propuestas para el alumnado italófono

    Get PDF
    Los dispositivos móviles se han convertido en una herramienta irrenunciable en la vida de los seres humanos, principalmente como instrumento para estar en contacto con cualquier persona en cualquier lugar y en cualquier momento. La introducción de los smartphone y las tabletas en las aulas de Educación Secundaria favorece la motivación y la autonomía del alumnado, puesto que las aplicaciones digitales (Apps) son el mundo en el que nace y vive. Sin embargo, el concepto de Mobile Learning se puede aplicar tanto al aula de lengua y literatura para hispanohablantes como al aula de español para extranjeros, empleando el móvil no como sustituto del material en papel, sino como elemento que fomenta las habilidades comunicativas. Teniendo en cuenta la utilidad de las app para dispositivos móviles en las aulas de Español como Lengua Extranjera (ELE), en el presente trabajo se desarrolla una propuesta didáctica desde el área de lengua y literatura española para el alumnado italófono: estos estudiantes constituyen un grupo particular de aprendices de español ya que, como los dos idiomas se parecen, surgen dificultades inesperadas al descubrir las divergencias durante el estudio de la lengua

    Climate Mitigation and Adaptation Strategies for Roofs and Pavements. A Case Study at Sapienza University Campus

    Get PDF
    The progressively emerging concept of urban resilience to climate change highlights the importance of mitigation and adaptation measures, and the need to integrate urban climatology in the design process, in order to better understand the multiple effects of combined green and cool technologies for the transition to climate responsive and thermally comfortable urban open spaces. This study focuses the attention on selected mitigation and adaptation technologies; two renovation scenarios were designed and modeled according to the minimal intervention criterion. The study pays attention to the effect on surface temperature and physiological equivalent temperature (PET) of vegetation and high albedo materials characterizing the horizontal boundaries of the site. The Sapienza University campus, a historical site in Rome, is taken as a case study. These results highlight the importance of treed open spaces and the combination of permeable green pavements associated with cool roofs as the most effective strategy for the mitigation of summer heatwaves and the improvement of outdoor thermal comfort

    A study of trace contaminant identification by microwave double resonance spectroscopy

    Get PDF
    Trace contaminant identification using microwave double resonance spectroscop

    Dynamic changes and prognostic value of pulmonary congestion by lung ultrasound in acute and chronic heart failure: a systematic review

    Get PDF
    Aims: Pulmonary congestion is an important finding in patients with heart failure (HF) that can be quantified by lung ultrasound (LUS). We conducted a systematic review to describe dynamic changes in LUS findings of pulmonary congestion (B-lines) in HF and to examine the prognostic utility of B-lines in HF. Methods and results: We searched online databases for studies conducted in patients with chronic or acute HF that used LUS to assess dynamic changes or the prognostic value of pulmonary congestion. We included studies in adult populations, published in English, and conducted in ≥25 patients. Of 1327 identified studies, 13 (25–290 patients) met the inclusion criteria: six reported on dynamic changes in LUS findings (438 patients) and seven on the prognostic value of B-lines in HF (953 patients). In acute HF, B-line number changed within as few as 3 h of HF treatment. In acute HF, ≥15 B-lines on 28-zone LUS at discharge identified patients at a more than five-fold risk for HF readmission or death. Similarly, in ambulatory patients with chronic HF, ≥3 B-lines on five- or eight-zone LUS marked those at a nearly four-fold risk for 6-month HF hospitalization or death. Conclusions: Lung ultrasound findings change rapidly in response to HF therapy. This technique may represent a useful and non-invasive method to track dynamic changes in pulmonary congestion. Furthermore, residual congestion at the time of discharge in acute HF or in ambulatory patients with chronic HF may identify those at high risk for adverse events

    Interferon free antiviral treatment of chronic hepatitis C in patients affected by β-thalassemia major

    Get PDF
    Chronic hepatitis C (CHC) significantly affects the prognosis of liver disease [1] and health related quality of life (HRQOL) in patients with β-thalassemia major [2, 3]. CHC cure is a crucial event in the prognosis of the disease, since prevents fibrosis progression, decreases the risk of hepatocellular carcinoma (HCC), and improves survival. Standard antiviral therapy with Pegylated Interferon (PEG-IFN) and Ribavirin (RBV) has long been the standard of care, despite its limited efficacy and increased ribavirin induced hematological adverse events in thalassemic patients [4]. Recently, several novel highly effective direct antiviral agents (DAAs) have been approved for HCV treatment, with impressive cure rates, higher than 90%, after 8–12 weeks of therapy and mild adverse events [5], but there are no published reports documenting the efficacy, safety and impact on QOL of available interferon-free antiviral regimens in patients with βthalassemia majo

    Sharp Hardy inequalities in the half space with trace remainder term

    Full text link
    In this paper we deal with a class of inequalities which interpolate the Kato's inequality and the Hardy's inequality in the half space. Starting from the classical Hardy's inequality in the half space \rnpiu =\R^{n-1}\times(0,\infty), we show that, if we replace the optimal constant (n2)24\frac{(n-2)^2}{4} with a smaller one (β2)24\frac{(\beta-2)^2}{4}, 2β<n2\le \beta <n, then we can add an extra trace-term equals to that one that appears in the Kato's inequality. The constant in the trace remainder term is optimal and it tends to zero when β\beta goes to nn, while it is equal to the optimal constant in the Kato's inequality when β=2\beta=2
    corecore