Alpha Spectrometry
Mostrando 1-12 de 141 artigos, teses e dissertações.
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1. Bioactive micro-constituents of ackee arilli (Blighia sapida K.D. Koenig)
Abstract: Ackee (Blighia sapida K. D. Koenig) is an exotic fruit widely consumed in the Caribbean countries. While there is extensive research on the presence of hypoglycin A, other bioactive compounds have not been studied. We identified and quantified the changes in bioactive molecules (total phenol, ascorbic acid, hypoglycin A, squalene, D: A-Friedooleana
An. Acad. Bras. Ciênc.. Publicado em: 09/09/2019
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2. Diagnostic accuracy of thromboelastometry and its correlation with the HPLC-MS/MS quantification test
The aim of the study was to evaluate the diagnostic accuracy of thromboelastometry for assessing rivaroxaban concentrations. The accuracy of thromboelastometry was compared with the high-performance liquid chromatography tandem mass spectrometry (HPLC-MS/MS) method, which is the gold standard for drug plasma monitoring (the reference standard). Forty-six cli
Braz J Med Biol Res. Publicado em: 08/04/2019
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3. Proteomic analysis of the acquired enamel pellicle formed on human and bovine tooth: a study using the Bauru in situ pellicle model (BISPM)
Abstract The acquired enamel pellicle (AEP) is an organic film, bacteria-free, formed in vivo as a result of the selective adsorption of salivary proteins and glycoproteins to the solid surfaces exposed to the oral environment. Objective: This study aimed to compare the proteomic profile of AEP formed in situ on human and bovine enamel using a new intraoral
J. Appl. Oral Sci.. Publicado em: 10/12/2018
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4. Alpha amylase and Alpha glucosidase inhibitory effects of aqueous stem extract of Salacia oblonga and its GC-MS analysis
ABSTRACT Our present investigation deals with the phytochemical screening, estimation of total flavonoids, terpenoids and tannin contents to evaluate the anti-diabetic activities of Salacia oblonga stem followed by GC-MS analysis. It explores the natural compounds and the potential α-amylase and α-glucosidase inhibitory actions of stem extracts. The aqueou
Braz. J. Pharm. Sci.. Publicado em: 14/05/2018
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5. Identification of the alpha-enolase P46 in the extracellular membrane vesicles of Bacteroides fragilis
BACKGROUND Members of the Bacteroides fragilis group are the most important components of the normal human gut microbiome, but are also major opportunistic pathogens that are responsible for significant mortality, especially in the case of bacteraemia and other severe infections, such as intra-abdominal abscesses. Up to now, several virulence factors have b
Mem. Inst. Oswaldo Cruz. Publicado em: 2018-03
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6. Proteomic data show an increase in autoantibodies and alpha-fetoprotein and a decrease in apolipoprotein A-II with time in sera from senescence-accelerated mice
We evaluated changes in levels by comparing serum proteins in senescence-accelerated mouse-prone 8 (SAMP8) mice at 2, 6, 12, and 15 months of age (SAMP8-2 m, -6 m, -12 m, -15 m) to age-matched SAM-resistant 1 (SAMR1) mice. Mice were sacrificed, and blood was analyzed by 2-dimensional electrophoresis combined with mass spectrometry. Five protein spots were pr
Braz J Med Biol Res. Publicado em: 12/04/2013
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7. Purificação e caracterização biológica de uma nova serinoprotease com atividade trombina"like" do veneno total de Brothrops andianus (TLBan) / Purification and biological characterization of a new serine protease with thrombin "like" activity the whole venom of Brothrops andianus (TLBan)
In this word, a new serine protease with thrombin "like" activity the venom of Bothrops andianus (TLBan), snake of the Andes of Peru, was isolated by two steps: molecular exclusion chromatography G-75 and liquid chromatography in reversed-phase HPLC; with a high degree of purity and molecular homegenidade. Through of electrophoresis on SDS-PAGE shows the TLB
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 27/02/2012
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8. Development and validation of analytical methodology for determination of pharmaceutical compounds in surface and surface treated water samples by ultra performance liquid chromatography coupled to tandem mass spectrometry (UPLC-MS/MS) / Desenvolvimento e validação de metodologia analítica para a determinação de fármacos em amostras de água, superficial e tratada, utilizando a cromatografia líquida de ultra performance acoplada à espectrometria de massas Tandem (UPLC-MS/MS)
The relevant concept of sustainability of the present day leads people to think about the treatment of natural resources and particularly in the quanlity and scarcity of water. The serious problems regarding the management of municipal waste in the country, from production, collection and disposal are the challenges facing municipalities and society in gener
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 19/12/2011
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9. Utilização de líquens como bioindicadores de contaminação atmosférica por radionuclídeos naturais e metais em região impactada por TENORM / The use of lichens as bioindicators of atmospheric contamination by natural radionuclides and metals in a region impacted by TENORM
The main aim of this thesis is to study the possibility of using lichen as bioincicator of atmospheric pollution in regions contaminated by radionuclides, metals and rare earth elements. Two regions were chosen, one in Pirapora do Bom Jesus, where a tin and lead industry is located, and a second one in Cubatão, where a phosphate fertilizer industrial comple
Publicado em: 2010
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10. Sistema ambiental aplicado á liberação de efluente radioativo líquido / ENVIRONMENTAL SYSTEM APPLIED TO RADIOACTIVE LIQUID EFFLUENT RELEASE
The current environmental administration considers the productive activity as an environmental system, defined as a group of processes, interactions, parameters and factors involved in the production. This mastering dissertation evaluated the release of the liquid radioactive effluents at Instituto de Pesquisas Energética e Nucleares (ipen), under a systemi
Publicado em: 2009
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11. Determinação do perfil de compostos voláteis e avaliação do sabor e aroma de bebidas produzidas a partir da erva-mate (Ilex paraguariensis)
Volatile compounds from green and roasted yerba mate were analyzed by gas chromatography/mass spectrometry and the flavor profile from yerba mate beverages was determined by descriptive quantitative analyses. The main compounds tentatively identified in green mate were linalool, alpha-terpineol and trans-linalool oxide and in roasted mate were (E,Z)-2,4-hept
Química Nova. Publicado em: 2007-06
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12. Production of aromas and fragrances through microbial oxidation of monoterpenes
Aromas and fragrances can be obtained through the microbial oxidation of monoterpenes. Many microorganisms can be used to carry out extremely specific conversions using substrates of low commercial value. However, for many species, these substrates are highly toxic, consequently inhibiting their metabolism. In this work, the conversion ability of Aspergillus
Brazilian Journal of Chemical Engineering. Publicado em: 2006-09