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Mostrando ítems 11-20 de 1061
Efeito de vernizes fluoretados suplementados com nanopartículas de Trimetafosfato de Sódio sobre o desgaste dental erosivo: estudo in vitro
(Universidade Estadual Paulista (Unesp), 2018-08-27)
The present study evaluated the effect of fluoride varnishes supplemented with nanosized sodium trimetaphosphate (TMP) on enamel erosive wear in vitro. Bovine enamel blocks (n = 50) were selected by surface microhardness ...
Efficient extraction of lithium from Β-spodumene by direct roasting with NaF and leaching
(Institution of Chemical Engineers, 2019-10)
This research describes the study of a new process for the extraction of Li from β-spodumene by direct roasting with NaF and leaching. Various parameters including roasting temperature, β-spodumene/NaF molar ratio and ...
Anti-erosive profile of an experimental 5% SnCl₂ varnish containing different concentrations of NaF
(2022-01-01)
This in vitro study evaluated the anti-erosive effect of an experimental varnish containing 5% stannous chloride (SnCl₂) associated with different concentrations of NaF (NaF-free, 2.5% NaF, or 5.2% NaF) on bovine enamel ...
Efficient extraction of lithium from β-spodumene by direct roasting with NaF and leaching
(Institution of Chemical Engineers, 2019-10)
This research describes the study of a new process for the extraction of Li from β-spodumene by direct roasting with NaF and leaching. Various parameters including roasting temperature, β-spodumene/NaF molar ratio and ...
NAF (Núcleo de Apoyo Fiscal) como opción de apoyo para el cumplimiento de obligaciones tributarias en la ciudad de Bucaramanga.
La finalidad de este trabajo es evidenciar que muchas personas no están capacitadas
ni tienen los conocimientos para presentar o elaborar algunas de las obligaciones
tributarias llevándolas a incurrir en sanciones por ...
Programa ”núcleos de apoyo contable y fiscal - NAF” en la formación de conciencia tributaria en estudiantes de la Universidad Peruana Unión filial Juliaca, 2019
(Universidad César Vallejo, 2020)
Como ha señalado el Informe de Perspectivas Económicas de América Latina
(OCDE, 2019), una de las trampas estructurales que inhibe el desarrollo es la
trampa institucional que se relaciona con una conciencia tributaria ...
Avaliação da via inibitória do sinal insulínico em tecido adiposo branco de ratos tratados cronicamente com NaF
(Universidade Estadual Paulista (Unesp), 2012-09-27)
Over the last years, there has been a significant reduction in the incidence of dental caries in several regions of the world. This has been attributed to ingestion of fluoridated products, especially in the form of public ...