Tempo de trabalho e sindicalismo: uma análise da ação sindical na questão do tempo de trabalho (1980-200)

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Estrutura eletrônica e propriedades elétricas fotoinduzidas em filmes finos de SnO2 com dopagem de Sb, e formação de heteroestruturas com TiO2

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Fotoluminescência e mecanismo de crescimento em titanatos nanoestruturados

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Otimização do processo de deposição de filmes TiO2:Mn usando RF magnetron sputtering

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Propriedades multifuncionais do CaCu3Ti4O12: estudo dos mecanismos e suas aplicações

Pós-graduação em Ciência e Tecnologia de Materiais - FC

Efeito da pressão na obtenção e nas propriedades óticas e sensoras de filmes finos à base de 'SN''O IND. 2' com a adição de 'ZNO'

Pós-graduação em Química - IQ

Arranjos institucionais entre o poder público municipal e instituições privadas para oferta de vagas na educação infantil

This paper features a research of the partnerships/agreements between the municipal public services and the private sphere to the offer of vacancies in Early Education, in the large counties of São Paulo. The study allowed us to identify different arrangements between the municipal public service and private institutions, which 30 of the 54 large counties of São Paulo turn to the services from partnerships as a mean to attend the local demand, including the institutions with lucrative purposes, being different of the traditional forms of partnerships instituted in Early Education. The text is based on the literature analysis about the theme and the information collected during the research from phone calls to municipal administrators, municipal official sites and government sites.

Emissão luminescente no titanato de cálcio dopado com íons de terras-raras

Through the polymeric precursor method were synthesized samples Ca0.98Sr0.01X0.01TiO3 (X= Eu3+, Sm3+ and Pr3+), which under different heat treatments were obtained with levels of distinct structural order-disorder. The synthesized materials were characterized by X-ray diffraction, confirming the obtaining of ahomogeneous material with perovskite-type orthorhombic structure. This characterization allowed evaluating the average crystallite size of the samples that varies depending on the rare-earth ion. The results of photoluminescence emission confirmed the presence of this optical phenomenon at room temperature and its relationship to the level of order-disorder structural system. The photoluminescence emission is more intense in samples annealed at 500 ° C (independent on the dopant ion), the variation of the dopant influence on the emission intensity due to charge transfer between the host and emitting rare-earth ion, where the doped with Pr3+ ion has charge transfer more efficient and hence more intense emission in the photoluminescence. Another factor that favors the optical property of the samples is the charge compensation, as it contributes to the increase in structural disorder due to formation of Ca2+ vacancies.

Síntese de cerâmicas ferroelétricas de PLZT–análise composicional e mecanismos de vacâncias

Pós-graduação em Ciência dos Materiais - FEIS

Evidence of magnetoelectric coupling on calcium doped bismuth ferrite thin films grown by chemical solution deposition

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Investigation of the conduction processes in PZT-based multiferroics: Analysis from Jonscher's formalism

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

An investigation into the influence of zinc precursor on the microstructural, photoluminescence, and gas-sensing properties of ZnO nanoparticles

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Investigation of the dielectric relaxation processes in PbZr0.65Ti0.35O3-BaFe12O19 multiferroic ceramic composites

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Structural and optical properties of Cu2O crystalline electrodeposited films

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

TinO2n-1 Magneli phases studied using density functional theory

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)