The work focuses on potential employment of MicroOxymax O2/CO2/CH4 automatic analyzer (Columbus, U.S.A.) for assessing aerobic and anaerobic biodegradability (biostability) of composites. Convenience of the given analyzer was assessed in degradation of PVAL-based mixed films.The objective of the work was confronting results of these tests with results obtained through “classic” standard respira...

In this paper, we present an efficient algorithm for performing stepwise selection in the class of decomposable models. We focus on the forward selection procedure, but we also discuss how backward selection and the combination of the two can be performed efficiently. The main contributions of this paper are (1) a simple characterization for the edges that can be added to a decomposable model w...

The aim of the current study is to investigate the contextual conditions of devoicing of phonologically voiced stops (bilabial and velar). Articulatory and acoustic data from four male speakers were recorded by means of EMMA and EPG. Devoicing was observed more frequently for the velar stops than for the bilabials. The highest occurrence of devoicing was observed when the voiced stop was follow...

A production technology specification in electricity distribution leads to many product aspects that together with detailed input data gives a high dimensionality. Non-parametric methods may give meaningful results when parametric methods lack degrees of freedom, but have problems with collinear or irrelevant variables. Aggregate efficiency estimates will be little affected, but rates of transf...

This paper shows that an integrable approximation of the spring pendulum, when tuned to be in 1 : 1 : 2 resonance, has monodromy. The stepwise precession angle of the swing plane of the resonant spring pendulum is shown to be a rotation number of the integrable approximation. Due to the monodromy, this rotation number is not a globally defined function of the integrals. In fact at lowest order ...

The purpose of this paper is to deal with questions of instability and economic crisis, deriving theoretical arguments from Schumpeter’s works and presenting relevant empirical evidence for the case of the US economy by sector of economic activity in the time period 19572006, just before the first signs of the global recession made their appearance. More precisely, we make an attempt to interpr...

Transtuberculum / Transplanum Approach to the Suprasellar Area: A Stepwise Approach Abordagem via endoscópica expandida transtuberculum transplanum para a região supraselar: os passos da abordagem Rodrigo Alves de Carvalho Cavalcante1,2,6 Rômulo Alberto Silva Marques2 Vinícius Gonçalves dos Santos3 Renato Mariano Nunes4 Tiago Fernando Scopel5,6 Vladimir Arruda Zaccariotti2 João Batista Arruda2 ...

Recently, research has focused on enabling fair exchange between payment and electronically shipped items. The reason for this is the growing importance of Electronic Commerce and the increasing number of applications in this area. Although a considerable number of fair exchange protocols exist, they usually have been defined for special scenarios and thus only work under particular assumptions...

The language acquisition procedure identifies certain properties of the target grammar before others. The evidence from the input is processed in a stepwise order. Section 1 equates that order and its typical effects with an order of parameter setting. The question is how the acquisition procedure derives the order from input evidence. Section 2 proposes a systematic input reduction for functio...

In this article we study the effects of introducing structure in the input distribution of the data to be learnt by a simple perceptron. We determine the learning curves within the framework of Statistical Mechanics. Stepwise generalization occurs as a function of the number of examples when the distribution of patterns is highly anisotropic. Although extremely simple, the model seems to captur...