Search Results - "Cardoso, Jari N"

Detection of High Molecular Weight Organic Tracers in Vegetation Smoke Samples by High-Temperature Gas Chromatography−Mass Spectrometry by Elias, Vladimir O, Simoneit, Bernd R. T, Pereira, Alberto S, Cabral, J. A, Cardoso, Jari N

“…High-temperature high-resolution gas chromatography (HTGC) is an established technique for the separation of complex mixtures of high molecular weight (HMW)…”
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Identification of source of a marine oil-spill using geochemical and chemometric techniques by Lobão, Marcio M., Cardoso, Jari N., Mello, Marcio R., Brooks, Paul W., Lopes, Claudio C., Lopes, Rosangela S.C.

“…► San Marcos bay (Maranhao, Brazil) contains small levels of petroleum hydrocarbons. ► Oil pollution in San Marcos bay is low-level but chronic. ► Aliphatic…”
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Sources and fate of n-alkanols and sterols in sediments of the Amazon shelf by Fernandes, Milena B., Elias, Vladimir O., Cardoso, Jari N., Carvalho, Marı́lia S.

“…Surficial sediments collected along the Amazon shelf during the November 1991 cruise of the AmasSeds program were analyzed for n-alkanols and 4-desmethyl…”
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Distributions of Indoor and Outdoor Air Pollutants in Rio de Janeiro, Brazil:  Implications to Indoor Air Quality in Bayside Offices by Brickus, Leila S. R, Cardoso, Jari N, de Aquino Neto, Francisco R

“…An indoor air quality survey was conducted on selected floors in an office building in Rio de Janeiro, Brazil. The sampling sites comprised four offices…”
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Preliminary study of insect attraction by a mixture of semiochemicals containing 1,2,4-Trimethoxybenzene in domestic citric-culture by Alves, Ana Paula L., C. Júnior, José Augusto B. de, Slana, Glaucia B. A., Cardoso, Jari N., Lopes, Rosangela S. C., Lopes, Claudio C.

“…In this work we describe a new efficient strategy for the preparation of 1,2,4-trimethoxybenzene (3) in 56% overall yield. The compound 3 was used in a…”
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Uma nova síntese de alfa-bromo-acetofenonas e sua aplicação na obtenção de 2-benzoil-benzofuranas by Azevedo, Mariangela S., Alves, Ana Paula L., Alves, Glaucia B. C., Cardoso, Jari N., Lopes, Rosângela S. C., Lopes, Cláudio C.

“…alpha-Bromoacetophenones are important in organic synthesis. They have been widely used as precursors of several natural products. Several methods of…”
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Characterization of Indoor Air Quality in the Cities of Sao Paulo and Rio de Janeiro, Brazil by Miguel, Antonio H, de Neto, Francisco R, Cardoso, Jari N, de Vasconcellos, Perola, Pereira, Alberto S, Marquez, Karem S. G

“…Aerosols in outdoor and indoor air of nonindustrial office workplaces in the Brazilian cities of Sao Paulo and Rio de Janeiro are quantified. The major sources…”
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Aliphatic and aromatic hydrocarbons in Candiota coal samples: novel series of bicyclic compounds by Miranda, Ana Cristina Macêdo L, Loureiro, Maria Regina B, Cardoso, Jari N

“…Aliphatic and aromatic fractions obtained from nine samples taken from two different seams of five boreholes in the Candiota coalfield (Lower Permian) were…”
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Mass spectra of triterpenyl alkanoates, novel natural products by Elias, Vladimir O., Simoneit, Bernd R. T., Pereira, Alberto S., Cardoso, Jari N.

“…A series of high molecular mass pentacyclic terpenoid wax esters in smoke from biomass combustion were characterized by high‐temperature, high‐resolution gas…”
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An efficient and concise total synthesis of the antimalarial alkaloid quindoline by Bastos, Dayse dos S., Silva, Anna C., Albert, André L.M., Barros, Wesley M.R., Slana, Glaucia B.C.A., Cardoso, Jari N., Lopes, Rosangela S.C., Lopes, Claudio C.

“…The preparation of the alkaloid quindoline (1) from indol (3) through a very direct synthetic approach is described in this work. Several successive…”
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Acidic oxygen compounds in the Irati shale oil by Afonso, Julio C, Schmal, Martin, Cardoso, Jari N

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Mild hydrocracking of an unstable feedstock in a three-phase fluidized-bed reactor: behavior of the process and of the chemical compounds by Souza, Guilherme L. M, Afonso, Julio C, Schmal, Martin, Cardoso, Jari N

“…The mild hydrocracking (400[degrees]C, 125 atm) of an unstable feedstock (shale oil) was performed in a three-phase fluidized-bed reactor with a commercial…”
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Hydrotreatment of Irati shale oil: behavior of the aromatic fraction by Afonso, Julio C, Schmal, Martin, Cardoso, Jari N, Frety, Roger

“…This paper presents the chemical transformations that occur in the aromatic fraction of Irati shale oil under rather drastic hydrotreating conditions, at…”
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Synthesis of 1,2,4-Trimethoxybenzene and Its Selective Functionalization at C-3 by Directed Metalation by Alves, Ana P. L., Júnior, Jose Augusto B. C., Slana, Glaucia B. A., Cardoso, Jari N., Wang, Qiang, Lopes, Rosangela S. C., Lopes, Claudio C.

“…A new and efficient strategy was developed for the preparation of 1,2,4-trimethoxybenzene (3, a powerful attractant of Euglossini bees) and its C-3 derivatives…”
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Identification of Isoquinoline alkaloids in crude extracts by high temperature gas chromatography-mass spectrometry by Pereira, Alberto S., Amaral, Ana Claudia F., Barnes, Roderick A., Cardoso, Jari N., Aquino Neto, Francisco R.

“…Crude ethanol extracts of leaves of Croton (Euphorbiaceae) species (C. hemiargyreus var. gymnodiscus, C. hemiargyreus var. hemiargyreus and C. echinocarpus)…”
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Atmospheric carcinogens in Rio de Janeiro during the summer of 1998/99: benzo[a]pyrene and benzene by Fernandes, M B, Brickus, L S, Moreira, J C, Cardoso, J N

“…Rio de Janeiro, the second largest city in Brazil, is affected by severe pollution episodes and presents a high respiratory cancer incidence in comparison with…”
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Sesquiterpenoids in Amazon shelf waters by Elias, Vladimir O., Cardoso, Jari N., Simoneit, Bernd R.T.

“…Surface water samples were collected with Niskin bottles on the Amazon continental shelf during peak river discharge. A suite of sesquiterpenoid compounds,…”
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Development and Validation of a Screening Method for DES, Zeranol, and β-Zearalanol in Bovine Urine by HRGC-MS and Evaluation of Robustness for Routine Survey of the Brazilian Herd by Marques, Marlice A.S., Lima, Lucilene A., Bizarri, Carlos H.B., Aquino Neto, Francisco R., Cardoso, Jari N.

“…A method and evaluated for screening and confirmation of diethylstilbestrol (DES), α- and β-zearalanol in bovine urine was developed. The residues were…”
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Sources and transport of lipids on Amazon continental shelf by Elias, Vladimir O., Cardoso, Jari N.

“…Dissolved material and recent sediment from the Amazon continental shelf have been analyzed for hydrocarbons to study the sources and potential fate of the…”
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Even N-Alkane Predominances on the Amazon Shelf and A Northeast Pacific Hydrothermal System by Elias, Vladimir O., Simoneit, Bernd R. T., Cardoso, Jari N.

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