Stable Set
Mostrando 1-12 de 370 artigos, teses e dissertações.
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1. Simultaneous Quantification of Amorphous and Crystalline Valsartan in Tablets Using Raman Spectroscopy and Chemometrics Tools
Valsartan is an antihypertensive active pharmaceutical ingredient (API), it is used in the amorphous state in the commercial products. As amorphous materials are metastable, amorphous valsartan can crystallize to valsartan E, promoting changes in the dissolution and bioavailability of the drug. Tablets containing metastable forms of APIs need special conditi
Journal of the Brazilian Chemical Society. Publicado em: 2022
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2. Hearing and language development in children with brainstem implants: a systematic review
Abstract Objective: To present scientific evidence, based on a systematic review of the literature, on the benefit of brainstem implants in auditory rehabilitation and language development in children. Methods: A systematic search was used to identify studies that contain information about the benefit of brainstem implants in the auditory rehabilitation an
Brazilian Journal of Otorhinolaryngology. Publicado em: 2022
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3. Differential impact on suicide mortality during the COVID-19 pandemic in Brazil
Objectives: To compare suicide rates observed in Brazil after the onset of the COVID-19 pandemic with the estimated rate based on suicide deaths between 2010 and 2020, and identify sociodemographic variables associated with this outcome. Methods: Ecological time-series study. Data were obtained from Brazilian Unified Health System Department of Information
Brazilian Journal of Psychiatry. Publicado em: 2022
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4. Open stope stability assessment through artificial intelligence
Abstract Underground mining is a set of methods that allows the extraction of ore in depth, ensuring sustainability and economic viability. One of the problems that arise in underground mine operations is open stope stability. The method for assessing stabil ity of open stopes is the stability graph proposed by Mathews et al. (1981). It is possible to estima
REM, Int. Eng. J.. Publicado em: 2020-09
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5. Geochemical Investigation of Tar Balls Collected in a Brazilian Beach Using Biomarkers, Ni/V, δ13C Ratios and Ultra-High Resolution FT-ICR Mass Spectrometry
Representative tar balls collected in two distinct years (2012 and 2014) in a beach along the State of Bahia, northeastern Brazil, were geochemically characterized in order to identify correlations between them and investigate potential sources. Terpanes and steranes biomarkers (detected by gas chromatography coupled to mass spectrometry, GC-MS), carbon stab
J. Braz. Chem. Soc.. Publicado em: 2020-04
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6. INTEGRATING REAL TIME OPTIMIZATION AND MODEL PREDICTIVE CONTROL OF A CRUDE DISTILLATION UNIT
Abstract This work reports the integration of Real Time Optimization and Model Predictive Control in the multi-layer control structure of an existing Crude Distillation Unit (CDU) of an oil refinery. The MPC considers output control zones and targets for the inputs or outputs. Both the infinite horizon and the finite output horizon controllers were tested. T
Braz. J. Chem. Eng.. Publicado em: 09/12/2019
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7. Validation of reference genes for gene expression studies in bovine oocytes and cumulus cells derived from in vitro maturation
Abstract Quantitative real-time PCR (qPCR) is a valuable tool for gene expression studies and it is necessary to choose an ideal endogenous reference gene for data normalization. This work studied a set of reference genes in oocytes and cumulus cells of COCs (Cumulus-Oocyte Complexes) that are suitable for relative gene expression analyses after in vitro mat
Anim. Reprod.. Publicado em: 25/11/2019
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8. Anthelmintic activity of plant aqueous extracts against Panagrellus redivivus in vitro
RESUMO O controle de fitonematoides é muito difícil e requer uma combinação de técnicas para ter sucesso. O controle alternativo via extrato vegetal pode resultar na descoberta de substâncias nematicidas. Esta pesquisa objetivou avaliar o efeito de 33 plantas submetidas à extração aquosa contra Panagrellus redivivus in vitro. As concentrações fora
Arq. Inst. Biol.. Publicado em: 25/11/2019
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9. PROPERTIES OF PARTICLEBOARD PANELS MADE OF SUGARCANE PARTICLES WITH AND WITHOUT HEAT TREATMENT
RESUMO O objetivo deste trabalho foi determinar as propriedades de painéis aglomerados confeccionados com partículas de bagaço de cana-de-açúcar in natura e aquecidas a 250 °C durante 5 minutos. Foram empregadas várias proporções de partículas na confecção dos painéis e as suas propriedades foram comparadas com as propriedades de um painel fabri
Rev. Árvore. Publicado em: 25/11/2019
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10. Práticas de Ciência Aberta da comunidade acadêmica brasileira: estudo a partir da produção científi ca
Resumo A Ciência Aberta representa um novo enfoque para o trabalho científi co, resultante do rápido desenvolvimento de modos interativos e colaborativos de aquisição, produção e disseminação de conhecimento, facilitados pelas tecnologias da informação. O termo é utilizado como “guarda-chuva” que engloba um conjunto de iniciativas, entre elas
Transinformação. Publicado em: 11/11/2019
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11. Midazolam and haloperidol for palliative sedation: physicochemical stability and compatibility of parenteral admixtures
This study was done to determine the time while the binary admixtures with midazolam and haloperidol drugs are administered by perfusion to the patients in the clinical routine. Samples with different concentrations of both drugs were prepared following the usual clinical practice. Solvents used were 0.9 % sodium chloride solution and 5% dextrose, and viaflo
Braz. J. Pharm. Sci.. Publicado em: 09/09/2019
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12. Effects of Macrosegregation and Microstructure on the Corrosion Resistance and Hardness of a Directionally Solidified Zn-5.0wt.%Mg Alloy
This study aims to analyze the influence of macrosegregation on microstructure evolution, and of microstructure length scale on the corrosion resistance of a Zn-5.0wt.%Mg alloy casting. The analyzed samples were taken along the length of castings unidirectionally solidified in unsteady state conditions of heat extraction. Microstructure characterization, mic
Mat. Res.. Publicado em: 05/09/2019