B Mode
Mostrando 13-24 de 902 artigos, teses e dissertações.
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13. Determinação de docetaxel e metabólitos em plasma por UPLC-MS/MS: desenvolvimento de metodologia analítica e aplicação clínica
A highly sensitive ultra-performance liquid chromatography tandem mass spectrometry method for the determination of Docetaxel and metabolites (M1+M3) in human plasma samples was developed and validated. The method employs a liquid-liquid extraction and a reversed phase separation Acquity® C18 column BEH C18 (150 x 2.1 mm, 1.7 µm). Mobile phase was a mixtur
Quím. Nova. Publicado em: 2020-04
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14. Metabolomics-Based Discovery of Biomarkers with Cytotoxic Potential in Extracts of Myracrodruon urundeuva
Myracrodruon urundeuva (“aroeira-do-sertão”) is a species threatened with extinction due to anthropogenic exploitation. Phytochemical analysis of bark, branch and leaf extracts revealed the presence of several compounds such as flavonoids, phenols, tannins, quercetin derivatives and anacardic acids. Dereplication methodology was performed to tentatively
J. Braz. Chem. Soc.. Publicado em: 2020-04
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15. Modified Ring Power Divider Using Stepped-Impedance Resonator
Abstract In this paper, the design of a modified ring power divider dedicated for wideband communication or measurement systems is presented. The proposed power divider is built by using a conventional ring power divider and an additional Stepped-Impedance Resonator (SIR). The even-odd mode analysis is used to derive the design equations. In order to observe
J. Microw. Optoelectron. Electromagn. Appl.. Publicado em: 2020-03
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16. Structural Study of Phenolic Acids by Triple Quadrupole Mass Spectrometry with Electrospray Ionization in Negative Mode and H/D Isotopic Exchange
This work reports the theoretical and experimental study of fragmentation reactions in the gas phase of five phenolic acids using triple quadrupole mass spectrometry by electrospray ionization in negative ionic mode, as well as the isotope exchange experiments. MS/MS spectra were analyzed to suggest the fragmentation mechanisms, while theoretical calculation
J. Braz. Chem. Soc.. Publicado em: 2020-02
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17. Mobility impact and methods of diaphragm monitoring in patients with chronic obstructive pulmonary disease: a systematic review
The objectives of the study were to identify the factors that limit diaphragmatic mobility and evaluate the therapeutic results of the monitoring methods previously used in patients with chronic obstructive pulmonary disease. The PubMed, Web of Science, Scopus, and LILACS databases were used. A gray literature search was conducted with Google scholar. PRISMA
Clinics. Publicado em: 10/01/2020
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18. Breast elastography: diagnostic performance of computer-aided diagnosis software and interobserver agreement
Resumo Objetivo: Determinar o melhor valor de corte para classificar os nódulos mamários pela elastografia por ultrassom, usando um software dedicado para elastografia por deformação, e determinar o nível de concordância interobservadores. Materiais e Métodos: Foram incluídos no estudo 83 pacientes com 83 massas mamárias identificadas no ultrassom
Radiol Bras. Publicado em: 10/01/2020
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19. Cooperativas de Comunicadores: possibilidades, contradições e cenário argentino
Resumo O artigo tem por objetivo situar o debate sobre cooperativas de trabalhadores de comunicação. Para tanto: a) posiciona a discussão em um cenário de flexibilização e individualização das situações de trabalho dos comunicadores; b) discute a atualidade das cooperativas, entre possibilidades de utopias reais e projetos radicais e contradições
Intercom, Rev. Bras. Ciênc. Comun.. Publicado em: 02/12/2019
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20. Ultrasonographic features of the normal thyroid gland in adult horses
RESUMO: Poucas análises foram publicadas com relação ao uso da ultrassonografia como método de avaliação da glândula tireoide hígida em equinos. Alguns trabalhos incluem a determinação das dimensões e características do parênquima. Por essas razões, este estudo teve como objetivo determinar com segurança as medidas tireoidianas a partir da com
Pesq. Vet. Bras.. Publicado em: 02/12/2019
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21. FATIGUE AND MUSCLE FUNCTION IN PROSTATE CANCER SURVIVORS RECEIVING DIFFERENT TREATMENT REGIMENS
RESUMO Introdução O câncer de próstata é a doença neoplásica mais frequente nos homens. Após seu diagnóstico, diferentes métodos de tratamento são propostos baseados no estágio do câncer. Esses tratamentos afetam diferentemente a função física e muscular, qualidade de vida e o prognóstico. Objetivos Avaliar a fadiga, força muscular, espe
Rev Bras Med Esporte. Publicado em: 11/11/2019
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22. Evaluation of the effect of chlorhexidine and sodium hypochlorite in adhesive cementation of fiber posts - in vitro study
Resumo Introdução A fixação de pinos de fibra de vidro é realizada através de um processo adesivo. Falhas podem ocorrer na adesão devido à degradação hidrolítica dos adesivos, ou pela degradação das fibras colágenas da camada híbrida por enzimas intrínsecas. Objetivo Avaliar o efeito do tratamento com clorexidina e hipoclorito de sódio sob
Rev. odontol. UNESP. Publicado em: 07/11/2019
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23. Scanning Electrochemical Microscopy (SECM) Study of the Electrochemical Behavior of Anodized AZ31B Magnesium Alloy in Simulated Body Fluid
In this work, scanning electrochemical microscopy (SECM) was employed to study the corrosion behavior of anodized AZ31B magnesium alloy exposed to simulated body fluid. SECM measurements were carried out in surface generation/tip collection mode. The hydrogen evolution flux caused during corrosion of the magnesium alloy was oxidized at the ultra-microelectro
Mat. Res.. Publicado em: 28/10/2019
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24. THE SYSTEMATIC USE OF THE FIVE MODES FOR THE SUSPENSION OF JUDGEMENT
Abstract The five modes are a list of tools used by ancient sceptics to guide dogmatic people towards suspending their judgement. Attributed to Agrippa (of uncertain date) and used extensively by Sextus Empiricus (2nd or 3rd century CE), these modes are still widely discussed today by epistemologists and specialists in ancient philosophy. Scholars disagree,
Manuscrito. Publicado em: 21/10/2019