[PDF] Top 20 J. Braz. Chem. Soc. vol.20 número6 en a01v20n6
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J. Braz. Chem. Soc. vol.20 número6 en a01v20n6
... Neither Eldorado or a Green Hell, the Amazon is a region rich in natural resources that needs science, technology and innovation to develop with sustainability. The edit[r] ... See full document
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J. Braz. Chem. Soc. vol.20 número5 en v20n5a01
... In recent years, the science and technology (S&T) of emerging countries such as Brazil, China and India has occupied more space in international discussions, placing these countries within the more promising ... See full document
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J. Braz. Chem. Soc. vol.20 número6
... 200 g of this fraction was redissolved in 2.5 L H 2 O and extracted with EtOAc (35 L). After evaporation of solvents, the EtOAc fraction (GU) and the remaining H 2 O phase (GU-1) gave dark-brown solids of 24 and 174 g, ... See full document
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J. Braz. Chem. Soc. vol.20 número6
... The CHCl 3 residue of the EtOH extract from I. juruensis arils (960.0 mg) was submitted to column chromatography on silica gel eluting with hexane:EtOAc in mixtures of increasing polarity, affording 20 fractions ... See full document
9
J. Braz. Chem. Soc. vol.20 número6
... The data reveal the black water chemical composition to be highly variable and strongly influenced by the local geological environment: the Badajós basin being chemically more diluted;[r] ... See full document
8
J. Braz. Chem. Soc. vol.20 número6
... A broad project on the mercury cycle in the Negro river basin has been undertaken by our laboratories over a period of ten years in order to evaluate mercury concentrations in differe[r] ... See full document
8
J. Braz. Chem. Soc. vol.20 número6
... In this work humic substances (HS) extracted from non-flooded (Araçá) and flooded (Iara) soils were characterized through the calculation of stability and activation energies associated[r] ... See full document
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J. Braz. Chem. Soc. vol.20 número6
... and Geophagus surinamensis muscle were subjected to length normalization, in order to compare their levels between the Balbina and Tucuruí reservoirs, due to the different mean body[r] ... See full document
11
J. Braz. Chem. Soc. vol.20 número6
... Principal component analysis for the four elements in hair samples from the resident populations of Altamira city and Canteiro island... classification matrix by using all sampl[r] ... See full document
14
J. Braz. Chem. Soc. vol.20 número6
... From calorimetric titration data, the net thermal effects resulted in corresponding well-behaved isotherms that were fitted to the Sips model, as shown in Figures 6a and 6b. The complete thermodynamic data for each ... See full document
11
J. Braz. Chem. Soc. vol.20 número6
... Abiotic materials (e.g. soils and river sediments) and biotic samples were collected at different parts of the Amazon region, especially in the Madeira River basin. The initial collection of fish and hair samples started ... See full document
5
J. Braz. Chem. Soc. vol.20 número6
... The construction of an amperometric sensor for phenolic compounds using a carbon paste electrode modified with manganese phthalocyanine and histidine is reported.. The sensor presented [r] ... See full document
8
J. Braz. Chem. Soc. vol.20 número6
... The essential oils of leaves, twigs, branches, trunk bark and fruits of Croton palanostigma were analyzed by GC and GC-MS.. Statistical analysis showed that the leaves and fruit,[r] ... See full document
5
J. Braz. Chem. Soc. vol.20 número7 en a01v20n7
... You are the future of the chemical sciences in your country and will be part of the increasingly important global network of chemists that will use our science to address prob[r] ... See full document
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J. Braz. Chem. Soc. vol.20 número2 en a01v20n2
... As an Editor, Maria has had decisive participation in a large number of events during JBCS maturing phase: in the preparation and implementation of the on-line manuscript s[r] ... See full document
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J. Braz. Chem. Soc. vol.18 número6 en a01v18n6
... Here are some figures to contemplate: conversion of existing annual stocks of corn and sugarcane (or other) crop-based fermentable carbohydrates to bioethanol can ‘buy’ up to 6% of the present U.S. demand for ... See full document
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J. Braz. Chem. Soc. vol.19 número6 en a01v19n6
... The Journal of the Brazilian Chemical Society , 3-5 JBCS (IF=1.54), the most prominent journal of Latin America, regardless of area, also contributes to the improvement and eva[r] ... See full document
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J. Braz. Chem. Soc. vol.22 número6 en a01v22n6
... The main objective of such technological centers is to take care of the protection and negotiation of the intellectual property arising from the university research and to support uni[r] ... See full document
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J. Braz. Chem. Soc. vol.20 número10
... últimos 20 anos, dobrou, enquanto o número de retratações aumentou 20 vezes, possivelmente como consequência do aparecimento de melhores sistemas de detecção, especialmente de plágio como o Déjà vu, 5 e ... See full document
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J. Braz. Chem. Soc. vol.20 número10
... last 20 years has doubled, but the number of retractions has increased 20 times, possibly due to improved detection systems, especially for plagiarism, such as “Déjà vu”, 5 and ... See full document
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