2d Pca
Mostrando 1-12 de 104 artigos, teses e dissertações.
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1. FATTY ACIDS ANALYSIS AND CHEMOTAXONOMIC CONSIDERATIONS OF MALVOIDEAE (MALVACEAE) SPECIES
Previous researches showed that fatty acids analysis might be a useful tool to support the taxonomic investigation. In this approach the fatty acids content of ten Malvoideae species was analyzed and its chemotaxonomic significance has been investigated. The aerial parts of the species were collected in the Northeast of Brazil and their fatty acid methyl est
Quím. Nova. Publicado em: 2021-02
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2. Evaluation of the Metabolic Profile of Arabica Coffee via NMR in Relation to the Time and Temperature of the Roasting Procedure
Coffee is one of the most popular and consumed products in the world, with high nutritional value and economic importance. However, some factors can change the organoleptic properties of a coffee species, without causing significant damage such as loss of important components. The present study evaluated the chemical profile, via nuclear magnetic resonance (
J. Braz. Chem. Soc.. Publicado em: 2021-01
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3. THE USE OF GENETIC DISTANCE AND GROUPING METHODS TO PREDICT Eucalyptus Pellita F. MUELL GENITORS FOR HYBRIDIZATION
ABSTRACT The objective of this study was to use quantitative traits to estimate the genetic distance among E. pellita provenances and progenies, to inform possible hybridization strategies in a species improvement program. A provenance and progeny test with 118 progenies from seven provenances was evaluated. The following quantitative traits were measured at
CERNE. Publicado em: 2020-12
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4. DETERMINAÇÃO DA AUTENTICIDADE DE AMOSTRAS DE AZEITE COMERCIAIS APREENDIDAS NO ESTADO DO ESPÍRITO SANTO USANDO UM ESPECTROFOTÔMETRO PORTÁTIL NA REGIÃO DO NIR
Many instrumental techniques are used to monitor the quality of food products, highlighting near infrared spectroscopy (NIRS). In order to determine the authenticity of 60 commercial oil samples seized by the Espírito Santo state police, this work used a portable spectrometer in the NIR region associated with chemometric tools such as principal component an
Quím. Nova. Publicado em: 20/07/2020
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5. Characterization of volatiles in red- and white-fleshed loquat (Eriobotrya japonica) fruits by electronic nose and headspace solid-phase microextraction with gas chromatography-mass spectrometry
Abstract Aroma differences are generally sensed in white- and red-fleshed loquats. Here, volatile compounds in four white- and three red-fleshed loquat varieties were investigated by headspace solid-phase microextraction and combined analysis of electronic nose (e-nose) and gas chromatography-mass spectrometry (GC-MS). In total, 83 volatile compounds were id
Food Sci. Technol. Publicado em: 2020-06
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6. Phytoplankton, Trophic State and Ecological Potential in reservoirs in the State of São Paulo, Brazil
Resumo O objetivo deste trabalho foi estabelecer Potencial Ecológico de alguns reservatórios do estado de São Paulo, tendo como elemento de qualidade biológica o fitoplâncton. Amostras de água integrando a coluna d’água foram tomadas nas zonas lótica, central e de barragem dos reservatórios Igaratá, Atibainha, Paiva Castro, Rio Grande, Itupararan
Rev. Ambient. Água. Publicado em: 10/10/2019
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7. Establishment of homogeneous zones in a soil of alluvial origin
RESUMO A capacidade do solo para manter o crescimento da planta e a actividade biológica reside nas suas propriedades físicas e químicas. O objectivo deste estudo foi observar a distribuição espacial das propriedades químicas do solo como pH, matéria orgânica (MO), condutividade eléctrica (CE), capacidade de troca catiônica eficaz (CTCE) e conteúd
Ciênc. agrotec.. Publicado em: 19/06/2019
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8. Robot assisted radical prostatectomy in kidney transplant recipients: surgical, oncological and functional outcomes of two different robotic approaches
ABSTRACT Background: To date, few series on robot-assisted radical prostatectomy (RARP) in kidney transplant recipients (KTRs) have been published. Purpose: To report the experience of two referral centers adopting two different RARP approaches in KTRs. Surgical, oncological and functional results were primary outcomes evaluated in the study. Material and
Int. braz j urol.. Publicado em: 27/05/2019
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9. NMR-Based Metabolomic Screening for Metabolites Associated with Resistance to Meloidogyne javanica in Annona muricata Roots
The resistance of Annona muricata roots to the nematode Meloidogyne javanica was investigated by nuclear magnetic resonance (NMR)-based metabolomics in combination with principal component analysis (PCA). Metabolic changes in roots exposed and not exposed to the nematode were evaluated and compared. In addition, the presence of nematicidal compounds in the r
J. Braz. Chem. Soc.. Publicado em: 23/05/2019
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10. What are the main local drivers determining richness and fishery yields in tropical coastal fish assemblages?
ABSTRACT Seasonal ecological effects caused by temperature and photoperiod are typically considered minimal in the tropics. Nevertheless, annual climate cycles may still influence the distribution and abundance of tropical species. Here, we investigate whether seasonal patterns of precipitation and wind speed influence the structure of coastal fish assemblag
Zoologia (Curitiba). Publicado em: 26/04/2018
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11. A fully automatic method for recognizing hand configurations of Brazilian sign language
Abstract Introduction Sign language is a collection of gestures, postures, movements, and facial expressions used by deaf people. The Brazilian sign language is Libras. The use of Libras has been increased among the deaf communities, but is still not disseminated outside this community. Sign language recognition is a field of research, which intends to help
Res. Biomed. Eng.. Publicado em: 2017-03
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12. Enquadramento e avaliação do índice de qualidade da água dos igarapés Rabo de Porco e Precuá, localizados na área da Refinaria Premium I, município de Bacabeira (MA)
RESUMO O objetivo deste estudo foi realizar um diagnóstico da qualidade das águas dos igarapés Rabo de Porco e Precuá, localizados na área de implantação da Refinaria Premium I, no município de Bacabeira, Maranhão. Foram avaliadas as características físico-químicas e microbiológicas da água em pontos a montante e a jusante de cada corpo d'água
Eng. Sanit. Ambient.. Publicado em: 12/12/2016