621 research outputs found
La chiesa e il monastero di Santa Chiara a Conversano
No full textIl volume, che è uno studio monografico sul complesso clariano di Conversano, rientra nel progetto Monografie degli edifici religiosi di Conversano, varato dal Centro Ricerche di Storia ed Arte. In esso vengono ricostruite le plurisecolari vicende storiche del monastero, dalla fondazione nel XVI secolo alla sua soppressione nel XIX secolo (C. Lavarra); le vicende storico-artistiche del cenobio e della chiesa (C. De Toma); e le vicende architettoniche del complesso chiesastico (L. Petrosino). Il volume è inoltre corredato di schede storico-artistiche di tutti gli elementi di arredo (altari, dipinti e statue) e si chiude con i due contributi a firma di G. Boraccesi e A. Filipponio che esaminano rispettivamente gli argenti clariani e l'organo monacale.
L’opera, che risponde appieno alle finalità statutarie del Centro Ricerche di Storia ed Arte, volte alla conoscenza, alla tutela e alla valorizzazione dei beni culturali, coniugate con la ricerca e l’innovazione, aggiunge un tassello prezioso non solo all’identità culturale cittadina, ma, in una visione ben più ampia, alla ricerca storico-artistica internazionale
Analysis of mutual funds' management styles: a modeling, ranking and visualizing approach
No full textA method to rank mutual funds according to their investment style measured with respect to the returns of a reference portfolio (benchmark) is introduced. It is based on a style analysis model estimating a mutual fund portfolio composition as well as the benchmark one. Starting from such compositions, it computes a proximity measure based on the L1 or L2 norm to assess the similarity between each mutual fund portfolio returns and the benchmark returns as well as between the returns of each benchmark constituent and that of the corresponding mutual fund constituent. To this purpose the mean integrated absolute error and the mean integrated squared error are computed to derive both a global ranking of mutual fund management styles and partial rankings expressing the over- (under-) weighting of each portfolio constituent. A visual inspection of the results emphasizing main differences in management styles is provided, using a parallel coordinates plot. Since a modeling, a ranking and a visualizing approach are integrated, the method is named MoRaViA. From the practitioners' point of view, it allows the identification of a specific management style for each mutual fund, discriminating active management funds from passive management ones. To evaluate the effectiveness of MoRaViA, many sets of artificial portfolios are generated and an application on a set of equity funds operating in the European market is presented.constrained linear regression, mean integrated squared error, mean integrated absolute error, parallel coordinates, subsampling, active vs. passive management, benchmarking,
Statistical Data Editing
No full textStatistical Data Editing (SDE) is the process of checking and correcting data for errors. Winkler (1999) defines it the set of methods used to edit (clean-up) and impute (fill-in) missing or contradictory data. The result of SDE is data that can be used for analytic purposes. Editing literature goes back to 60’s with the contributions of Nordbotten (1965), Pritzker et al. (1965) and Freund and Hartley (1967). A first mathematical formalization of the editing process is in Naus et al. (1972), who introduce a probabilistic criterion for the identification of records (or the part of them) that failed the editing process. A solid methodology for generalized editing and imputation systems is developed in Fellegi and Holt (1976). The great break in rationalizing the process came as a direct consequence of the PC evolution in the 80’s: Editing started to be performed on-line on PCs even during the interview and by the respondent in computer assisted self-interviewing (CASI) models of data collection (Bethlehem et al., 1989). Nowadays, SDE is a research topic in academia and statistical agencies. The European Economic Commission periodically organizes a workshop on the subject concerning both scientific and managerial aspects of SDE (www.unece.org/stats)
Psychological factors as determinants of chronic conditions: Clinical and psychodynamic advances
No full textOpinion articl
On the Use of Markov Models in Pharmacoeconomics: Pros and Cons and Implications for Policy Makers
No full textPractical implementation of the Kelly criterion: optimal growth rate, number of trades, and rebalancing frequency for equity portfolios
No full textWe develop a general framework to apply the Kelly criterion to the stock market data, and consequently, to portfolio optimization. Under few conditions, using Monte Carlo simulations with different scenarios we prove that the Kelly criterion beats any other approach in many aspects. In particular, it maximizes the expected growth rate and the median of the terminal wealth. We also show that, under a normal distribution of returns, the Kelly criterion has the best performance in the long run. Next, we optimize a portfolio with the Kelly criterion with no leverage and no short selling conditions and show that this portfolio lays in the mean-variance efficient frontier and has higher expected return and higher variance, although it is less diversified, respect to the tangent portfolio optimized under the Markowitz approach. Finally, we implement a dynamic strategy applied on the European stock market data and compare the results between the tangent and the optimal Kelly portfolios. In a dynamic setting, the rolling Kelly portfolio outperforms competitors particularly in the case of rebalanced portfolios optimized with a 2-years window width
Vivere con la fibromialgia
No full textLa fibromialgia è una patologia caratterizzata da dolore cronico a carico dei muscoli, dei tendini, dei legamenti e dei tessuti periarticolari, associata spesso a disturbi del sonno e della concentrazione, affaticabilità, disturbi d’ansia e depressivi.
Alla sua origine contribuiscono sia fattori biologici che psicologici e un approccio terapeutico integrato, che coinvolga diverse figure professionali (psichiatra, psicologo, reumatologo), risulta essere il più indicato per chi ne soffre.
Questo libro offre le informazioni scientifiche più aggiornate riguardo alle caratteristiche, alle cause e alle possibilità di cura della fibromialgia, e accompagna il lettore passo per passo in un percorso di auto-aiuto psicologico che lo aiuterà ad affrontare più efficacemente il dolore, migliorando sensibilmente la propria qualità di vita
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