The Liu estimator has consistently been demonstrated to be an attractive shrinkage method for reducing the effects of multicollinearity. The Poisson regression model is a well-known model in applications when the response variable consists of count data. However, it is known that multicollinearity negatively affects the variance of the maximum likelihood estimator (MLE) of the Poisson regressio...

Results of recent monitoring activities on potentially unstable areas of the NW volcano flank of La Fossa cone (Vulcano Island, Italy) are shown here. They are obtained by integration of data by aerial photogrammetry, terrestrial laser scanning (TLS) and GPS taken in the 1996–2011 time span. A comparison between multi-temporal models built from remote sensing data (photogrammetry and TLS) highl...

The Gram-positive soil bacterium and cellulose degrader Streptomyces reticuli synthesizes the mycelium-associated enzyme CpeB, which displays haem-dependent catalase and peroxidase activity, as well as haem-independent manganese-peroxidase activity. The expression of the furS-cpeB operon depends on the redox regulator FurS and the presence of the haem-binding protein HbpS. Upstream of hbpS, the...

Inverse sampling design is generally considered to be appropriate technique when the population is divided into two subpopulations, one of which contains only few units. In this paper, we derive the Horvitz-Thompson estimator for the population mean under inverse sampling designs, where subpopulation sizes are known. We then introduce an alternative unbiased estimator, corresponding to post-st...

Curves of maximal slope are a reference gradient-evolution notion in metric spaces and arise as variational formulation vast class nonlinear diffusion equations. Existence theories for curves often based on minimizing-movements schemes, most notably the Euler scheme. We present here an alternative approach, yielding more regular discretizations, serving a-posteriori convergence estimator, allow...

la region etudiee se situe dans le sud-est du bassin de paris; il s'agit du senonais (departement de l'yonne): a. d'orbigny (1840) s'interessa aux foraminiferes de la craie de sens et y decrivit un assez grand nomber d'especes, en se basant sur les donnees paleontologiques, il etablit i'etage senonien (paleontologie francaise, terrains cretaces ii. gastropodes, p. ...