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Mixture of partial least squares experts and application in prediction settings...

This paper addresses the problem of online quality prediction in processes with multiple operating modes. The paper proposes a new method called mixture of partial least squares regression (Mix-PLS), where the solution of the mixture of experts regression is performed using the partial least squares (PLS) algorithm. The PLS is used to tune the model experts and the gate parameters. The solution of Mix-PLS is ac...

In vitro antimicrobial activity of royleanone derivatives against Gram positive...

Infections caused by multiresistant bacterial pathogens are a significant problem worldwide, turning the search for natural compounds to act as alternatives to antibiotics of major importance. The aim of the present study was to investigate the in vitro antimicrobial activity of 7α-acetoxy-6β-hydroxyroyleanone (1), isolated from Plectranthus grandidentatus (Lamiaceae), and 11 additional royleanone abietane deri...

Cianose no pequeno lactente – desafio diagnóstico

Conversão de Comprimento de Onda Baseado em Four Wave Mixing

All-optical wavelength conversion is one of the major research topics in the optical networks area..Problems due to electrical conversion can be easily eliminated, such as thermic noise; its transparency to the shape of the signal and to the bit rate, makes this type of conversion an attractive solution.The ‘Four Wave Mixing’(FWM) process is one of these allopticaltechniques. The...

Articulatory synthesis of European Portuguese Nasal Vowels

Main motivation for this work was the attainment of synthesis with natural quality. One of the promising paths to reach this objective is the use of articulatory synthesis, technique based on direct modellation of the human speech production process. Articulatory synthesis can be used in simulations, and as a versatile informant to produce stimuli for perceptual tests, indispensable in speech pro...

Fine-scale habitat selection of chilean dolphins (Cephalorhynchus eutropia) : i...

Fine-scale habitat selection of Chilean dolphins was studied between January and April 2002 through shorebased theodolite tracking in order to investigate the environmental and behavioural determinants of habitat use, and to evaluate the interactions between this species and aquaculture activities in Yaldad Bay, southern Chile. During 293.5 h of effort, movement and habitat selection patterns of dolphins exhibi...

An SLP algorithm and its application to topology optimization

We introduce a globally convergent sequential linear programming method for nonlinear programming. The algorithm is applied to the solution of classic topology optimization problems, as well as to the design of compliantmechanisms. The numerical results suggest that the new algorithm is faster than the globally convergent version of the method of moving asymptotes, a popular method for mechanical engineering ap...

Solution of a truss topology bilevel programming problem by means of an inexact...

We formulate a truss topology optimization problem as a bilevel programming problem and solve it by means of a line search type inexact restoration algorithm. We discuss details of the implementation and show results of numerical experiments.

Birth weight patterns by gestational age in Brazil

BACKGROUND AND OBJECTIVES: We present an updated birth weight-for-gestational-age portrait, based on nearly 8 million observations of an ethnic-mixed population. It comprises the first comprehensive charts with Brazilian data. This contribution intends to assist clinicians in classifying fetal growth, to provide a reference for investigations of predictors and to show the consequences of small and large pattern...

Neuroendoscopic surgery for unilateral hydrocephalus due to inflammatory obstru...

OBJECTIVE: Unilateral hydrocephalus (UH) is characterized by enlargement of just one lateral ventricle. In this paper, the authors will demonstrate their experiences in the neuroendoscopic management of this uncommon type of hydrocephalus. METHOD: The authors retrospectively reviewed a serie of almost 800 neuroendoscopic procedures performed from September 1995 to July 2010 and selected seven adult patients wit...