This paper introduces an estimator for the correlation based on the signs of observations. Its asymptotic distribution is normal, it does not depend on the variance structure and it is invariant with respect to a wide class of models. Moreover, it is particularly suitable to study the...

Maximal Oxygen Consumption (VO2 max) is one of the most important predictors in cardio respiratory domain. The present work deals with the relationship between the six minute walk test to the maximal oxygen consumption. Pneumatologists and cardiologists are very interested in this relationship...

The definition of correlation is generalized to random vectors whose second moment may not exist. The properties of generalized correlation coefficient are investigated with respect to linear transformations and special families of distributions.

Scopo del lavoro e' la stima della domanda di edilizia residenziale da parte degli studenti iscritti presso i diversi poli didattici dellUniversita' e del Politecnico di Bari in vista della realizzazione di nuove residenze universitarie. Dopo aver definito i bacini di utenza dei diversi poli...

Il passaggio dal mondo dellUniversita' a quello del lavoro e' influenzato da un insieme di variabili quali la congiuntura economica, la domanda di competenze specialistiche, la preparazione acquisita, il livello di specializzazione o professionalizzazione, la flessibilita' e le precedenti...

This paper shows that linear functions of order statistics (L-statistics) based on exchangeble random samples have a Fundamental Skew distribution (Arellano-Valle and Genton, 2003). The paper also examines the exact distribution of L.statistics when the sampled population is Skew-Normal. Exact...

In this paper we study the properties of a family of index, called CI. These indices have been proposed by Civardi, Zavarrone (2003) in order to evaluate the teaching quality in university disciplines. The most frequently used scales offer four or five points and the first two (or the last two)...

Maximal oxygen consumption (VO2max) is the standard measurement used to quantify cardiovascular functional capacity and aerobic fitness. Unfortunately, it is a costly, impractical and labour-intensive measure to obtain. The 6-min walk test (6MWT) also assesses cardiopulmonary function, but in...