Encontrados 15 documentos, a visualizar página 1 de 2
IgG and IgM western blot assay for diagnosis of congenital toxoplasmosis
Machado,Anderson S; Andrade,Gláucia MQ; Januário,José N; Fernandes,Matheus D; Carneiro,Ana Carolina AV; Carneiro,Mariângela; Carellos,Ericka VMThe aim of this study was to evaluate the utility of western blot (WB) analysis as a diagnostic tool for congenital toxoplasmosis in 215 newborn infants. The children were submitted to clinical examinations to assess macular, neurological and hearing signals. The WB results obtained were compared to the persistence of IgG antibodies at the end of 12 months, which is regarded as the "gold standard" diagnosis of ...
Synthesis and Chromatographic Evaluation of the new phase heptakis (3-O-pentafl...
Mallmann,Anderson S.; Ethur,Eduardo M.; Silva,Ubiratan F. da; Dalcol,Ionara I.; Morel,Ademir F.In this work, a new chiral stationary phase heptakis (3-O-pentafluoropropionyl-2,6-di-O-pentyl)-β-cyclodextrin was synthesized and evaluated with a wide variety of volatile chiral compounds. As a result, the new cyclodextrin derivative can be applied to the separation of chiral components of essential oils, as hydrocarbons, ketones, aldehydes, alcohols and of various classes of synthetic chiral compounds, ...
Improving the computational efficiency of the successive projections algorithm ...
Soares,Anderson S.; Galvão Filho,Arlindo R.; Galvão,Roberto K. H.; Araújo,Mário César U.This short report proposes a sequential regression implementation for the successive projections algorithm (SPA), which is a variable selection technique for multiple linear regression. An example involving the near-infrared determination of protein in wheat is presented for illustration. The resulting model predictions exhibited a correlation coefficient of 0.989 and an RMSEP (root-mean-square error of predict...
(R)-(-)-carvone and (1R, 4R)-trans-(+)-dihydrocarvone from poiretia latifolia v...
Porto,Carla; Stüker,Caroline Z.; Mallmann,Anderson S.; Simionatto,Euclesio; Flach,Adriana; Canto-Dorow,Tais do; Silva,Ubiratan F. da; Dalcol,Ionara I.The essential oils of Poiretia latifolia Vogel, native and cultivated leaves (Samples A and B, respectively) and native flowers (sample C), were obtained by hydrodistillation and analyzed by GC, GC/MS and chiral phase gas chromatography (CPGC). Twenty-four compounds were identified, representing 99.25, 99.26 and 99.23% of the oils, respectively. The major constituents of the oils were the monoterpenes (S)-(-)-l...
Fracture process characterization of fiber-reinforced dental composites evaluat...
Matheus,Tibério C. U.; Kauffman,Cynthia M. F.; Braz,Ana K. S.; Mota,Cláudia C. B. O.; Gomes,Anderson S. L.This study used optical coherence tomography (OCT) compared to scanning electron microscopy (SEM) and optical microscopy (OM) to evaluate qualitatively crack propagation and final fracture in restorative composite materials - Filtek Z250 and Filtek Z350 (3M ESPE) - with fiber reinforcement after cyclic loading. Samples were made using a split mold. Initially, 3-point bending tests were performed to determine th...
Behavior of the vegetable crops section in three types of food retail stores in...
Lima-Filho,Dario de O; Hokama,Anderson S; Spanhol,Caroline PThe behavior of the fresh fruits and vegetable produce section was evaluated, under the point of view of the consumer, in three types of food retail stores in Campo Grande, Brazilian southeast: a grocery store ("quitanda"), a supermarket, and an open-air market. A quantitative-descriptive survey was conducted with 120 individuals, responsible for purchasing fresh fruit and vegetable produce for their homes. To ...
Slurry sampling for arsenic determination in sediments by hydride generation at...
Torres,Daiane P.; Vieira,Mariana A.; Ribeiro,Anderson S.; Curtius,Adilson J.A simple and robust method for the determination of arsenic in sediments by hydride generation atomic absorption spectrometry (HG-AAS) using slurry sampling is proposed. Aqua regia (5% v/v) and hydrofluoric acid (1% v/v) were mixed with an aliquot of the sediment with particle size of 50 µm in an ultrasonic bath for 30 min. The slurry was allowed to stand for 48 h for an effective extraction of the analyte to t...
Determination of Hg and Se in biological materials by chemical vapor generation...
Vieira,Mariana A.; Ribeiro,Anderson S.; Dias,Lúcia F.; Curtius,Adilson J.A method for the determination of Hg and Se in biological materials by chemical vapor generation electrothermal vaporization inductively coupled plasma mass spectrometry (CVG-ETV-ICP-MS) using isotope dilution calibration after acid digestion is proposed. The samples were digested with aqua regia in a microwave oven. The isotope ratios used for quantification were: 201Hg/202Hg and 77Se/82Se. A NaBH4 solution st...
Movimento do herbicida tebutiuron em dois solos representativos das áreas de re...
Gomes,Marco A. F.; Spadotto,Cláudio A.; Pereira,Anderson S.; Matallo,Marcus B.; Luchini,Luis C.O movimento do herbicida tebutiuron foi analisado em um Latossolo Vermelho Distrófico psamítico (LVdq) e um Neossolo Quartzarênico Órtico típico (RQo), representativos das áreas de recarga do aqüífero Guarani no Brasil, tendo como fatores influenciadores, a condutividade hidráulica (K), o teor de carbono orgânico (CO) e o teor de argila (TAr). O presente estudo foi realizado em colunas de solos indeformados, co...
Adsorção e dessorção de cádmio, cobre e chumbo por amostras de Latossolos pré-t...
Pierangeli,M. A. P.; Guilherme,L. R. G.; Curi,N.; Anderson,S. J.; Lima,J. M.O movimento de elementos-traço nos solos está intimamente associado aos fatores que contribuem para sua retenção na fase sólida; dentre esses fatores, destaca-se a presença de ânions adsorvidos. Neste trabalho, avaliou-se o efeito do pré-tratamento do solo com P sobre a adsorção e dessorção de Cd, Cu e Pb em amostras dos horizontes A e B de dois solos: Latossolo Vermelho-Amarelo ácrico típico (LVAw) e Latossolo...
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