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Exploring topsoil geochemistry from the CoDA (Compositional Data Analysis) perspective: The multi-element data archive of the Campania Region (Southern Italy)
(Elsevier, 2015)
Soil geochemistry is often investigated by considering a large number of variables, including major, minor and trace elements. Some of the variables are usually highly correlated due to coherent geochemical behaviour, but ...
Brazilian Network of Food Data Systems and LATINFOODS Regional Technical Compilation Committee: Food composition activities (2006-2009)
(ACADEMIC PRESS INC ELSEVIER SCIENCE, 2011)
The Brazilian Network of Food Data Systems (BRASILFOODS) has been keeping the Brazilian Food Composition Database-USP (TBCA-USP) (http://www.fcf.usp.br/tabela) since 1998. Besides the constant compilation, analysis and ...
A Compositional Statistical Analysis of Global Capital Stock
(Asociación de Profesores Universitarios de Matemáticas aplicadas a la Economía y la Empresa, 2014-12)
What has been the pattern of capital composition associated with World economies? We make an exploratory statistical analysis based on compositional data transformed by Aitchison log ratios for measuring statistical ...
Sustainability Ranking for Cuban Tourist Destinations Based on Composite Indexes
(Springer Netherlands, 2015-09-29)
Tourism sustainability evaluation has become an important issue in the development of this economic industry due to its dependence on natural environment quality and social acceptance. The study shows different ways to ...
Effect of pre-heating resin composite and light-curing units on monomer conversion
(2010-01-01)
The purpose of this study was to evaluate the effect of pre-heating resin composite photo-cured with light-curing units (LCU) by FT-IR. Twenty specimens were made in a metallic mold (4 mm diameter × 2 mm thick) from composite ...
Economic Examples of Latent Budget Analysis
(European Economics Letters Group, 2013-12)
Latent budget analysis is a classification technique that allows clustering identification by using compositional data. This paper presents examples of how this technique deals with the unit-sum constraint by establishing ...
Analysis of chemical polymerization between functionalized MWCNT and poly(furfuryl alcohol) composite
(2018-01-01)
In this study, the chemical interaction between functionalized carbon nanotuboes with carboxyl groups (CNT-f) and the subsequent addition of furfuryl alcohol (FA) and mixture with poly(furfuryl alcohol) (PFA) resin was ...
Surface roughness of packable composite resins polished with various systems
(2004-05-07)
Purpose: The aim of this study was to evaluate the surface roughness of four packable composite resins, SureFil™ (Dentsply, Petrópolis, Rio de Janeiro, Brazil), Prodigy Condensable™ (Kerr Co., Orange, CA, USA), Filtek P60™ ...