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Anatomy of Brazilian Eriocaulaceae: correlation with taxonomy and habitat using multivariate analyses
(Springer, 2005-06-01)
In this study we present a survey on vegetative anatomy in species of Actinocephalus, Blastocaulon, Eriocaulon, Leiothrix, Paepalanthus, Philodice, Syngonanthus, and Tonina (Eriocaulaceae). Multivariate analyses were used ...
Classification of Aristolochia species based on GC-MS and chemometric analyses of essential oils
(Pergamon-Elsevier B.V. Ltd, 2008-01-01)
Essential oils were obtained from roots of 10 Aristolochia species by hydrodistillation and analysed by GC MS. A total of 75 compounds were identified in the analysed oils. Multivariate analyses of the chemical constituents ...
Genetic divergence among maize hybrids by morphological descriptors
(Instituto Agronômico de Campinas, 2015)
Non-allometric caste differences in Agelaia vicina (Hymenoptera, Vespidae, Epiponini)
(1998-12-01)
Non-allometric and clear-cut caste dimorphism were found in two colonies of the social wasp Agelaia vicina. Such type of allometry was previously recorded in the Epiponini and its origin is pre-imaginally determined as in ...
Multivariate quality control studies applied to Ca(II) and Mg(II) determination by a portable method
(Wiley-Blackwell, 1998-09-01)
A portable or field test method for simultaneous spectrophotometric determination of calcium and magnesium in water using multivariate partial least squares (PLS) calibration methods is proposed. The method is based on the ...
Carbon nuclear magnetic resonance spectroscopic fingerprinting of commercial gasoline: Pattern-recognition analyses for screening quality control purposes
(Elsevier B.V., 2010-06-30)
In this work, the combination of carbon nuclear magnetic resonance ((13)C NMR) fingerprinting with pattern-recognition analyses provides an original and alternative approach to screening commercial gasoline quality. Soft ...
Relationship between sedentariness and moderate-to vigorous physical activity in youth: a multivariate multilevel study
(International Journal of Environmental Research and Public Health, 2019)
Geographic variation of Africanized honey bees (Apis mellifera L.) in Brazil: Multivariate morphometrics and racial admixture
(1996-06-01)
The correspondence between morphometric and isozymic geographic variation patterns of Africanized honey bees in Brazil was analyzed. Morphometric data consisted of mean vectors of 19 wing traits measured in 42 local ...
Fee - fishing operation evaluation at Nothwest São Paulo State, Brazil
(Universidade de São Paulo (USP), Escola Superior de Agricultura Luiz de Queiroz (ESALQ), 2005-12-01)
Os lagos de pesca recreativa, pesque-pague, surgiram no Brasil em um cenário agrícola denominado como novo rural brasileiro. Este estudo conduzido no noroeste paulista teve como foco o desempenho produtivo dos lagos de ...
Seleção de genótipos resistentes de amendoinzeiro a Anticarsia gemmatalis Hübner (Lepidoptera: Noctuidae) com base em análises multivariadas
(2010-03-01)
The velvetbean caterpillar Anticarsia gemmatalis Hübner attacks peanut leaves, and the use of resistant varieties has directly contributed to ecological and economic aspects of pest control. The aim of this work was to ...