The microgravity environment of the NASA Shuttles and Russia's MArspace station have been measmed by specially designed _xeletometer systems. The need fca comparisons between different missions, vehicles, conditions, etc. has been addressed by the two uew tgcx_sses described in this paper. The Principal Conkuonmt Specual Analysis (PCSA) and Quasi-steady "Ihtee-dimensional Histogram (QTH) techni...

We consider nonparametric estimation of the conditional qth quantile for stationary time series. We deal with stationary time series with strong time dependence and heavy tails under the setting of random design. We estimate the conditional qth quantile by local linear regression and investigate the asymptotic properties. It is shown that the asymptotic properties are affected by both the time ...

PURPOSE The aim of this study was to determine the efficacy of new light-emitting diode (LED) curing units in the hardening of Class II composite restorations. METHODS AND MATERIALS Disk specimens 2 mm in diameter and 2.5 mm thick were prepared from 2 composites (Vit-l-escence, shade A3, Ultradent; Herculite XRV, shade A2, Kerr) in the following manner. An extracted permanent molar tooth was ...

We determine the maximum possible size of the qth moment of a Dirichlet series, for 1 6 q 6 2.

The aim of this study was to assess the bond strength of a resin cement to intraradicular dentin varying the light-curing unit and the moment at which the light was applied. Post spaces of endodontically treated canines were prepared. The roots were distributed into 6 groups (n=10) according to the light-curing unit and the moment of light exposure: I) Quartz tungsten halogen-600 mW/cm² (QTH) +...

In this study we derive the general expression for the entries of the qth power (q 2 N) for one type of even order symmetric pentadiagonal matrices.