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Mostrando 1-12 de 561 artigos, teses e dissertações.
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1. Blockchain in education: the influence of trust on adoption and implementation
Abstract Purpose This paper aims to investigate the influence of trust on adopting and implementing blockchain technology in higher education institutions (HEIs) in Brazil. Design/methodology/approach This study uses an exploratory qualitative approach to understand the construct of trust in the context of the educational sector. Data were collected throug
RAUSP Management Journal. Publicado em: 2022
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2. Violence against health personnel before and during the COVID-19 pandemic
SUMMARY OBJECTIVE: Violence in the workplace has been an alarming phenomenon around the world. The aim of this study was to analyze the frequency of violence against health personnel in urgent and emergency departments, before and during the COVID-19 pandemic. METHODS: This is an exploratory cross-sectional study including a structured online survey with t
Revista da Associação Médica Brasileira. Publicado em: 2022
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3. Burnout syndrome in resident physicians of a Federal University
SUMMARY OBJECTIVE: The objective of this study was to determine the frequency of burnout, global, and by dimension, in resident physicians of Federal University of Piauí, and to identify possible factors associated with the presence of the syndrome. METHOD: This is a cross-sectional, observational, and descriptive study. Population: resident physicians in
Revista da Associação Médica Brasileira. Publicado em: 2022
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4. New Europium(III)-TTA Complex Containing 2-Pyrrolidone as Coligand to Application as Luminescent Sensor: PbII and Ethanol in Gasoline
This work describes the synthesis and application of an europium(III) complex, [Eu(TTA)3(2-pyr) (H2O)], containing 2-thenoyltrifuoroacetonate (TTA) and 2-pyrrolidone (2-pyr) as ligands, obtained as white solid and soluble in ethanol. In solution, the complex showed red emission, characteristic of the EuIII emission in the solid state (λexc = 375 nm and λem
Journal of the Brazilian Chemical Society. Publicado em: 2022
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5. Development and Validation of a Gas Chromatographic Method for the Quantification of Minor Alkaloids in Cocaine
The quantification of minor alkaloids in seized cocaine can provide information for drug profiling and law enforcement initiatives. This work presents the development and validation of an analytical method to quantitate minor alkaloids in cocaine samples using gas chromatography with flame ionization detector, after derivatization. The method was validated i
J. Braz. Chem. Soc.. Publicado em: 2021-04
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6. SEQUENTIAL MULTI-ELEMENT DETERMINATION OF TRACE-METALS IN BIODIESEL SAMPLES USING HR-CS FAAS
In this work the feasibility of sequential multi-element determination of Zn, Fe, Mg, Cu, Na, K, Cr, Al and Ca in biodiesel samples by high-resolution continuum source flame atomic absorption spectrometry (HR-CS FAAS) was investigated. Biodiesel samples obtained from different sources and different chemical processes were analysed. The samples were diluted w
Quím. Nova. Publicado em: 2021-02
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7. Effect of the COVID-19 Pandemic on the Activity of Physicians Working in the Areas of Head and Neck Surgery and Otorhinolaryngology
Abstract Introduction Coronavirus disease 2019 (COVID-19) is an acute infection caused by the new coronavirus (SARS-CoV-2) and it is highly transmissible, especially through respiratory droplets. To prepare the health system for the care of these patients also led to a restriction in the activity of several medical specialties. Physicians who work with pati
Int. Arch. Otorhinolaryngol.. Publicado em: 2020-09
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8. OTIMIZAÇÃO DO PROCESSO NÃO INVASIVO E NÃO DESTRUTIVO DE EXTRAÇÃO E ANÁLISE DE METABÓLITOS VOLÁTEIS DE MAMÃO PAPAIA POR SPME-GC-MS
The analysis of volatiles is an alternative in the routine of quality control of fruits, since the volatile metabolites can change in the presence of microorganisms. A well-established method for extracting volatiles is the solid phase microextraction (SPME). This work aims to define some parameters (fiber coating, conditioning time and fiber exposure time)
Quím. Nova. Publicado em: 2020-09
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9. Adult Otogenic Meningitis in the Pneumococcal Conjugated Vaccines Era
Abstract Introduction Streptococcus pneumoniae is a major pathogen of otogenic meningitis (OgM), the most commonly reported intra-cranial complication of otitis media (OM). Objectives To study the changes in adult OgM patients in the pneumococcal conjugated vaccines (PCVs) era. Methods Retrospective cohort of adults presenting with concurrent OM and me
Int. Arch. Otorhinolaryngol.. Publicado em: 2020-06
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10. An Investigation of Hearing (250-20,000 Hz) in Children with Endocrine Diseases and Evaluation of Tinnitus and Vertigo Symptoms
Abstract Introduction Despite much advancement in medicine, endocrine and metabolic diseases remain an important cause of morbidity and even mortality in children. Objective The present study was planned to investigate the evaluation of hearing that also includes high frequencies, and the presence and degree of vertigo and tinnitus symptoms in pediatric
Int. Arch. Otorhinolaryngol.. Publicado em: 2020-06
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11. A Formação-Intervenção na Atenção Primária: uma Aposta Pedagógica na Educação Médica
RESUMO A implantação do Sistema Único de Saúde e o reconhecimento da atenção primária à saúde (APS) como reorientadora do modelo de atenção à saúde trouxeram consigo a necessidade de novos processos de formação que incorporassem o ensinar e o aprender aos processos cotidianos de trabalho. Apresentamos um relato de experiência de implementaç�
Rev. bras. educ. med.. Publicado em: 13/01/2020
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12. UM CONJUNTO DE PLANILHAS ELETRÔNICAS PARA IDENTIFICAÇÃO E QUANTIFICAÇÃO DE CONSTITUINTES DE ÓLEOS ESSENCIAIS
The identification of essential oils constituents has been made easier and faster by the use of automatic software search engines that compare the experimental mass spectra and calculate the retention indices with those in commercial databases. However, these search engines and databases are very expensive. Electronic sheets have been assembled in a set of l
Quím. Nova. Publicado em: 2020-01