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Registro Completo |
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Biblioteca(s): |
Embrapa Gado de Leite. |
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Data corrente: |
07/02/2013 |
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Data da última atualização: |
12/02/2014 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
SILVA, M. R.; OLIVEIRA, V. M. de; SOUZA, G. N. de; ROCHA, A. S.; COSTA, R. R.; ALENCAR, A. P.; FILHO, P. S. M.; PEREIRA, O. T. V.; SANTOS, E. C.; ISSA, M. O.; MOTA, P. M. P. C.; ARAUJO, F. R.; SUFFYS, P. N.; GUIMARAES, M. D. C. |
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Afiliação: |
MARCIO ROBERTO SILVA, CNPGL; VANIA MARIA DE OLIVEIRA, CNPGL; GUILHERME NUNES DE SOUZA, CNPGL; A. S. ROCHA, FIOCRUZ; R. R. COSTA, FHEMIG; A. P. ALENCAR, LABORATORIO NACIONAL DE AGROPECUARIA DE MG; P. S. M. FILHO, LABORATORIO NACIONAL DE AGROPECUARIA DE MG; O. T. V. PEREIRA, LABORATORIO NACIONAL DE AGROPECUARIA DE MG; E. C. SANTOS, LABORATORIO NACIONAL DE AGROPECUARIA DE MG; M. O. ISSA, LABORATORIO NACIONAL DE AGROPECUARIA DE MG; P. M. P. C. MOTA, LABORATORIO NACIONAL DE AGROPECUARIA DE MG; FLABIO RIBEIRO ARAUJO, CNPGC; P. N. SUFFYS, FIOCRUZ; M. D. C. GUIMARAES, UFMG. |
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Título: |
Tuberculosis patients co-infected with Mycobacterium bovis in an urban area in Brazil. |
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Ano de publicação: |
2012 |
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Fonte/Imprenta: |
In: Simpósio Embrapa LabEx EUA de Sanidade Animal, 2., 2012, Brasília. Proceedings... Brasília: Embrapa Estudos e Capacitação, 2012 |
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Páginas: |
p. 54 |
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Idioma: |
Inglês |
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Palavras-Chave: |
Brasil; Pseudogene oxiR; Tuberculose zoonotica. |
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Categoria do assunto: |
H Saúde e Patologia |
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Marc: |
LEADER 00953naa a2200313 a 4500
001 1948694
005 2014-02-12
008 2012 bl uuuu u00u1 u #d
100 1 $aSILVA, M. R.
245 $aTuberculosis patients co-infected with Mycobacterium bovis in an urban area in Brazil.
260 $c2012
300 $ap. 54
653 $aBrasil
653 $aPseudogene oxiR
653 $aTuberculose zoonotica
700 1 $aOLIVEIRA, V. M. de
700 1 $aSOUZA, G. N. de
700 1 $aROCHA, A. S.
700 1 $aCOSTA, R. R.
700 1 $aALENCAR, A. P.
700 1 $aFILHO, P. S. M.
700 1 $aPEREIRA, O. T. V.
700 1 $aSANTOS, E. C.
700 1 $aISSA, M. O.
700 1 $aMOTA, P. M. P. C.
700 1 $aARAUJO, F. R.
700 1 $aSUFFYS, P. N.
700 1 $aGUIMARAES, M. D. C.
773 $tIn: Simpósio Embrapa LabEx EUA de Sanidade Animal, 2., 2012, Brasília. Proceedings... Brasília: Embrapa Estudos e Capacitação, 2012
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Embrapa Gado de Leite (CNPGL) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Instrumentação. Para informações adicionais entre em contato com cnpdia.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Instrumentação. |
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Data corrente: |
25/11/2004 |
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Data da última atualização: |
08/03/2010 |
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Autoria: |
PÉREZ, M. G.; MARTIN-NETO, L.; SAAB, S. C.; NOVOTNY, E. H.; MILORI, D. M. B. P.; BAGNATO, V. S.; COLNAGO, L. A.; MELO, W. J.; KNICKER, H. |
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Título: |
Characterization of humic acids from a brazilian oxisol under different tillage systems by EPR, 13C NMR, FTIR and fluorescence spectroscopy. |
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Ano de publicação: |
2004 |
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Fonte/Imprenta: |
Geoderma, Amsterdam, v. 118, p. 181-190, 2004. |
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Idioma: |
Inglês |
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Conteúdo: |
The importance of soil organic matter functions is well known, but structural information, chemical composition and changes induced by anthropogenic factors such as tillage practices are still being researched. In the present paper were characterized Brazilian humic acids (HAs) from an Oxisol under different treatments: conventionaI tillage/maize-bare fallow (CTI); conventional tillage/maize rotation with soybean-bare fallow (CT2); no-till/maize-bare fallow (NTI); no-till/maize rotation with soybean-bare fallow (NT2); no-till/maize-cajanus (NT3) and no cultivated soil under natural vegetation (NC). Soil HA samples were analyzed by electron paramagnetic resonance (EPR), solid-state 13C nuclear magnetic resonance r3C NMR), Fourier transform infra-red (FTIR) and uv- Vis tluorescence spectroscopies and elemental analysis (CHNS). The FTIR spectra of the HAs were similar for alI treatments. The levei of semiquinone-type free radical determined from the EPR spectra was lower for treatments no-till/maize-cajanus (NT3) and noncultivated soil (1.74 x 1017 and 1.02 x 1017 spins g- 1 HA, respectively), compared with 2.3 x 1017 spins g- 1 HA for other soils under cultivation. The percentage of aromatic carbons determined by 13C NMR also decreases for noncultivated soil to 24%, being around 30% for samples of the other treatments. The solid-state 13C NMR and EPR spectroscopies showed small differences in chemical composition of the HA from soils where incorporation of vegetal residues was higher, showing that organic matter (OM) formed in this cases is less aromatic. The tluorescence intensities were in agreement with the percentage of aromatic carbons, determined by NMR (r=0.97 PMenosThe importance of soil organic matter functions is well known, but structural information, chemical composition and changes induced by anthropogenic factors such as tillage practices are still being researched. In the present paper were characterized Brazilian humic acids (HAs) from an Oxisol under different treatments: conventionaI tillage/maize-bare fallow (CTI); conventional tillage/maize rotation with soybean-bare fallow (CT2); no-till/maize-bare fallow (NTI); no-till/maize rotation with soybean-bare fallow (NT2); no-till/maize-cajanus (NT3) and no cultivated soil under natural vegetation (NC). Soil HA samples were analyzed by electron paramagnetic resonance (EPR), solid-state 13C nuclear magnetic resonance r3C NMR), Fourier transform infra-red (FTIR) and uv- Vis tluorescence spectroscopies and elemental analysis (CHNS). The FTIR spectra of the HAs were similar for alI treatments. The levei of semiquinone-type free radical determined from the EPR spectra was lower for treatments no-till/maize-cajanus (NT3) and noncultivated soil (1.74 x 1017 and 1.02 x 1017 spins g- 1 HA, respectively), compared with 2.3 x 1017 spins g- 1 HA for other soils under cultivation. The percentage of aromatic carbons determined by 13C NMR also decreases for noncultivated soil to 24%, being around 30% for samples of the other treatments. The solid-state 13C NMR and EPR spectroscopies showed small differences in chemical composition of the HA from soils where incorporation of vegetal residues was... Mostrar Tudo |
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Palavras-Chave: |
EPR; FTIR; NMR; Nuclear; Ressonância magnética. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02550naa a2200277 a 4500
001 1028683
005 2010-03-08
008 2004 bl --- 0-- u #d
100 1 $aPÉREZ, M. G.
245 $aCharacterization of humic acids from a brazilian oxisol under different tillage systems by EPR, 13C NMR, FTIR and fluorescence spectroscopy.
260 $c2004
520 $aThe importance of soil organic matter functions is well known, but structural information, chemical composition and changes induced by anthropogenic factors such as tillage practices are still being researched. In the present paper were characterized Brazilian humic acids (HAs) from an Oxisol under different treatments: conventionaI tillage/maize-bare fallow (CTI); conventional tillage/maize rotation with soybean-bare fallow (CT2); no-till/maize-bare fallow (NTI); no-till/maize rotation with soybean-bare fallow (NT2); no-till/maize-cajanus (NT3) and no cultivated soil under natural vegetation (NC). Soil HA samples were analyzed by electron paramagnetic resonance (EPR), solid-state 13C nuclear magnetic resonance r3C NMR), Fourier transform infra-red (FTIR) and uv- Vis tluorescence spectroscopies and elemental analysis (CHNS). The FTIR spectra of the HAs were similar for alI treatments. The levei of semiquinone-type free radical determined from the EPR spectra was lower for treatments no-till/maize-cajanus (NT3) and noncultivated soil (1.74 x 1017 and 1.02 x 1017 spins g- 1 HA, respectively), compared with 2.3 x 1017 spins g- 1 HA for other soils under cultivation. The percentage of aromatic carbons determined by 13C NMR also decreases for noncultivated soil to 24%, being around 30% for samples of the other treatments. The solid-state 13C NMR and EPR spectroscopies showed small differences in chemical composition of the HA from soils where incorporation of vegetal residues was higher, showing that organic matter (OM) formed in this cases is less aromatic. The tluorescence intensities were in agreement with the percentage of aromatic carbons, determined by NMR (r=0.97 P<O.OI) and with semiquinone content, determined by EPR (r=0.97 P<O.OI).
653 $aEPR
653 $aFTIR
653 $aNMR
653 $aNuclear
653 $aRessonância magnética
700 1 $aMARTIN-NETO, L.
700 1 $aSAAB, S. C.
700 1 $aNOVOTNY, E. H.
700 1 $aMILORI, D. M. B. P.
700 1 $aBAGNATO, V. S.
700 1 $aCOLNAGO, L. A.
700 1 $aMELO, W. J.
700 1 $aKNICKER, H.
773 $tGeoderma, Amsterdam$gv. 118, p. 181-190, 2004.
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