595 research outputs found
Editorial: Pulmonary fibrosis: One manifestation, various diseases
No full textThis research topic collection entitled “Pulmonary Fibrosis: one manifestation, various diseases”, involving authors from different countries, confirms that this disease is a hot topic (Confalonieri P et al.,2022, Orlandi M et al., 2022). There are over 200 different types of pulmonary fibrosis (PF), the most common is the idiopathic pulmonary fbrosis (IPF), called idiopathic because it has no known cause. Another rare form is familial PF, for which several studies reported correlation with few genes. An important group of PF are due to other diseases, for example, autoimmune diseases such as rheumatoid arthritis, systemic sclerosis or Sjogren’s syndrome (Ruaro et al., 2022, Trombetta AC et al., 2017, Bernero Eet al., 2013). PF could correlate to viral infections (e.g. COVID-19), gastroesophageal reflux disease (GERD) (Baratella E et al, 2021, Ruaro et al., 2018), and the exposure to various materials (including naturally occurring such as bird or animal droppings, and occupational such as asbestos or silica). Furthermore, smoking, radiation treatments, and certain drugs can increase risk of developing PF
A Nystrom interpolant for some weakly singular linear Volterra integral equations
No full textWe consider a second kind weakly singular Volterra integral equation defined by a non compact operator and derive a Nystrom type interpolant of the solution based on Gauss-Radau nodes. Assuming the stability of the interpolant, which is confirmed by the numerical tests, we derive convergence estimate
A NYSTROM INTERPOLANT FOR SOME WEAKLY SINGULAR NONLINEAR VOLTERRA INTEGRAL EQUATIONS
No full textWe consider a second kind weakly singular nonlinear Volterra Hammerstein integral equation de¯ned by a compact operator and derive a NystrÄom type interpolant of the solution based on Gauss-Radau nodes. We prove the convergence of the interpolant and derive convergence estimates. For equations with nonlinearity of algebraic kind, we improve the rate of convergence by using a smoothing transformation. Some numerical examples are give
Francesco Berto e Matteo Plebani, 2015, "Ontology and Metaontology: A contemporary Guide"
No full textRecensione di "Ontology and Metaontology: A Contemporary Guide" di Francesco Berto, Matteo Pleban
A track finding algorithm based on pixel detector for the ATLAS second level trigger
No full textA fast track reconstruction algorithm for the ATLAS second level trigger is presented. The timing performance (3.5 ms for a jet reconstruction at low luminosity) is satisfactory; the transverse impact parameter resolution (75 mu m) is sufficient to perform an on- line b-tagging, and the full three-dimensional reconstruction produces good seeds for more sophisticated track searches. (4 refs)
Vasi con decorazione a “pseudo intaglio” a Este e vasi zonati a Bologna: un riesame del problema nell’ottica del riconoscimento di possibili fenomeni di mobilità
No full textAchille C. Varzi, Il mondo messo a fuoco. Storie di allucinazioni e miopie filosofiche
No full textRecensione di "Achille C. Varzi, Il mondo messo a fuoco. Storie di allucinazioni e miopie filosofiche
A new approach to the numerical solution of weakly singular Volterra integral equations
No full textAbstractWe consider linear weakly singular Volterra integral equations of the second kind, with kernels of the form k(x,v)=|x−v|−αK(x,v),0<α<1, or k(x,v)=log|x−v|K(x,v), K(x,v) being a smooth function. The solutions of such equations may exhibit a singular behaviour in the neighbourhood of the initial point of the interval of integration. By a transformation of the unknown function we obtain an equation which is still weakly singular, but whose solution is as smooth as we like. This resulting equation is then solved by standard product integration methods
A closer look to the sgoldstino interpretation of the diphoton excess
No full textAbstract: We revisit the sgoldstino interpretation of the diphoton excess in the context of gauge mediation. While the bound on the gluino mass might seem to make the sgoldstino contribution to the diphoton excess unobservable, we show that the interpretation is viable in a thin, near critical region of the parameter space. This regime gives rise to drastic departures from the standard gauge mediation picture. While the fermion messengers lie in the (10-100) TeV range, some scalar messengers are significantly lighter and are responsible for the sgoldstino production and decay. Their effective coupling to the sgoldstino is correspondingly enhanced, and a non-perturbative regime is triggered when light and heavy messenger masses differ by a factor ≳ 4π. We also comment on the possible role of an R-axion and on the possibility to decouple the sfermions in this context. © 2016, The Author(s)
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