Avaliação de práticas pedagógicas na perspectiva do SPAECE: ensino fundamental

The objective of this study is to assess whether the intentional and significant pedagogical practice contributes to the improvement of the quality results of the SPAECE learning indexes, for classes in the 5th year of elementary school in the early years. Guiding questions of the study: how to evidence pedagogical practices from quantitative data? How can intentional and meaningful learning improve the quality of teaching? How can the teacher's pedagogical practice contemplate students? The methodology is a depth assessment as described by Rodrigues (2008). It will be permeated by four moments: i) document analysis; context analysis; its trajectory; and temporal and territorial dimensions, and the characteristic of the methodology is quantitative. This research shows that pedagogical practice is one of the main drivers of improving the quality of learning, which directly reflects on Public Policies for external assessment.Objetiva-se neste estudo, avaliar se a prática pedagógica intencional e significativa contribui para a melhoria dos resultados da qualidade dos índices de aprendizagem do SPAECE, para turmas do 5º ano do ensino fundamental nos anos iniciais. Perguntas norteadoras do estudo: como evidenciar as práticas pedagógicas a partir de dados quantitativos? Como a aprendizagem intencional e significativa pode melhorar a qualidade do ensino?  Como a prática pedagógica do professor pode contemplar os estudantes? A metodologia é de avaliação de profundidade conforme descreve Rodrigues (2008). Será permeada por quatro momentos: i) análise documental; análise do contexto; sua trajetória; e dimensões temporal e territorial, e a característica da metodologia é quantitativa. A presente pesquisa evidência que a prática pedagógica é um dos principais impulsionadores da melhoria da qualidade da aprendizagem, o que reflete diretamente nas Políticas Públicas de avaliação externa

Acetylated cashew gum and fucan for incorporation of lycopene rich extract from red guava (Psidium guajava L.) in nanostructured systems: antioxidant and antitumor capacity

Industrial application of lycopene is limited due to its chemical instability and low bioavailability. This study proposes the development of fucan-coated acetylated cashew gum nanoparticles (NFGa) and acetylated cashew gum nanoparticles (NGa) for incorporation of the lycopene-rich extract from red guava (LEG). Size, polydispersity, zeta potential, nanoparticles concentration, encapsulation efficiency, transmission electron microscopy (TEM) and atomic force microscopy (AFM) were used to characterize nanoparticles. The antioxidant activity was determinated and cell viability was evaluated in the human breast cancer cells (MCF-7) and human keratinocytes (HaCaT) by MTT assay. The toxic effect was evaluated by hemolysis test and by Galleria mellonella model. NFGa showed higher stability than NGa, having a size of 162.10 ± 3.21 nm, polydispersity of 0.348 ± 0.019, zeta potential -30.70 ± 0.53 mV, concentration of 6.4 × 109 nanoparticles/mL and 60% LEG encapsulation. Microscopic analysis revealed a spherical and smooth shape of NFGa. NFGa showed antioxidant capacity by ABTS method and ORAC assay. The NFGa presented significant cytotoxicity against MCF-7 from the lowest concentration tested (6.25-200 μg/mL) and did not affect the cell viability of the HaCaT. NFGa showed non-toxic effect in the in vitro and in vivo models. Therefore, NFGa may have a promising application in LEG stabilization for antioxidant and antitumor purposes.info:eu-repo/semantics/acceptedVersio