A reificação da formação docente diante da onipresença das competências

O texto a seguir situa-se na perspectiva da Filosofia da Educação, tendo como referencial teórico o contributo dos estudos sobre reificação e reconhecimento social, de Axel Honneth. Desse modo, o objetivo é elucidar as relações existentes entre a reivindicação da prática na formação docente, empreendida pelas últimas reformas do campo educacional, e as possíveis manifestações da reificação no processo educativo, bem como estudar possibilidades da apresentação de proposições alternativas inspiradas na ideia do reconhecimento do outro. A proposta empenha-se em responder às seguintes perguntas: em que sentido a legislação oficial da formação docente (alusiva aos professores da escola básica), baseada na concepção de competências, conflui para a manifestação de processos de reificação? Como pode ser pensado um redirecionamento na perspectiva do reconhecimento intersubjetivo

Effects of different toothpastes on the prevention of erosion in composite resin and glass ionomer cement enamel and dentin restorations

Objective:This study aimed to evaluate the effects of different toothpastes on the surface wear of enamel, dentin, composite resin (CR), and resin-modified glass ionomer cement (RMGIC), and to perform a topographic analysis of the surfaces, based on representative images generated by atomic force microscopy (AFM) after erosion-abrasion cycles. Methodology: One hundred and forty bovine incisors were collected and divided into two groups: 72 enamel and 72 dentin blocks (4×4 mm). Half of the specimens were restored with CR (Filtek Z350 XT) and the other half with RMGIC (Fuji II LC). Then, samples were submitted to a demineralization cycle (5 days, 4×2 min/day, 1% citric acid, pH 3.2) and exposed to three different toothpastes (2×15 s/day): without fluoride (WF, n=12), sodium fluoride-based (NaF, n=12), and stannous fluoride-based (SnF2, n=12). Surface wear, as well as restoration interfaces wear, were investigated by profilometry of the dental substrates and restorative materials. All representative surfaces underwent AFM analysis. Data were analyzed by two-way analysis of variance and Tukey’s tests (α=0.05). Results: NaF-based toothpaste caused the greater dentin surface wear (p<0.05). Toothpastes affected only enamel-restoration interfaces. AFM analysis showed precipitate formation in dentinal tubules caused by the use of fluoride toothpastes. Conclusions: NaF-based toothpastes had no protective effect on enamel adjacent to CR and RMGIC against erosion-abrasion challenges, nor on dentin adjacent to RMGIC material. SnF2-based toothpastes caused more damage to interfaces between enamel and RMGIC

HLA haplotypes and differential regional mortality caused by COVID-19 in Brazil: an ecological study based on a large bone marrow donor bank dataset

The coronavirus disease 2019 (COVID-19) mortality rates varied among the states of Brazil during the course of the pandemics. The human leukocyte antigen (HLA) is a critical component of the antigen presentation pathway. Individuals with different HLA genotypes may trigger different immune responses against pathogens, which could culminate in different COVID-19 responses. HLA genotypes are variable, especially in the highly admixed Brazilian population. In this ecological study, we aimed to investigate the correlation between HLA haplotypes and the different regional distribution of COVID-19 mortality in Brazil. HLA data was obtained from 4,148,713 individuals registered in The Brazilian Voluntary Bone Marrow Donors Registry. COVID-19 data was retrieved from epidemiological bulletins issued by State Health Secretariats via Brazil’s Ministry of Health from February/2020 to July/2022. We found a positive significant correlation between the HLA-A*01~B*08~DRB1*03 haplotype and COVID-19 mortality rates when we analyzed data from 26 states and the Federal District. This result indicates that the HLAA*01~B*08~DRB1*03 haplotype may represent an additional risk factor for dying due to COVID-19. This haplotype should be further studied in other populations for a better understanding of the variation in COVID-19 outcomes across the world

Investigation of protective effects of erythrina velutina extract against MMS induced damages in the root meristem cells of allium cepa

Erythrina velutina Willd., Fabaceae, is a medicinal plant that can be found in the tropics and subtropics, including in the semi-arid northeastern Brazil. It is commonly used in folk medicine to treat anxiety, agitation and insomnia. E. velutina has been known to present analgesic, anti-infl ammatory and antibacterial activities, however, it is unknown if this plant present a protective effect on DNA. We assessed the antigenotoxic effect of E. velutina against the genotoxic effects induced by MMS in the root meristem cells of Allium cepa. Three concentrations of the aqueous extract (100, 200 and 400 mg/L) of this medicinal plant were used in three different types of treatment (pre-, post- and simultaneous). The effects of the extracts on the root meristem cells of A. cepa were analyzed at both macroscopic and microscopic levels. Protective effects were observed at higher concentrations in pre-treatment and in simultaneous treatment. The results suggest that E. velutina may present antigenotoxic properties and demonstrate its chemopreventive potential

IMPACTO DE DETERMINANTES SOCIAIS NA SAÚDE MENTAL: UMA ANÁLISE DE SAÚDE COLETIVA

Introduction: It seeks to highlight the importance of social determinants of health in relation to the treatment and care of patients with mental disorders. Furthermore, it reports on the changes and how the determinants reflect positively and negatively on this topic, in addition to the evolution that has emerged since past years. Objective: Understand the impacts and the relationship of determinants with the issue of mental health. Methodology: A systematic literature review was carried out covering the years from January 2003 to December 2023 The study was based and guided by the question mentioned throughout the article. Results: The evident role of determinants in the subject of mental health stands out, in addition to showing that the evolution of these determinants can improve and facilitate the development of efficient and appropriate care strategies for patients suffering from some mental illness. Advanced cases can be mitigated gradually. Conclusion: With emphasis on social and economic issues, it is noted that these factors directly affect adherence to treatment and diagnosis for those in need and that even with all the efforts aimed at this topic to this day, an inequality is still seen in the way in which The health system is offered to the population.Introdução: Procura evidenciar a importância das determinantes sociais de saúde em relação ao tratamento e assistência de pacientes com transtornos mentais. Além disso, relata as mudanças e como as determinantes refletem positivamente e negativamente nessa temática, além da evolução que foi surgindo desde anos passados. Objetivo: Compreender os impactos e a relação das determinantes com a temática da saúde mental. Metodologia: Foi realizada uma revisão sistemática de literatura abrangendo os anos de janeiro de 2003 a dezembro de 2023. O estudo teve como base e norteamento a pergunta citada no decorrer do artigo. Resultados: Destaca-se o papel evidente das determinantes no assunto de saúde mental, além de evidenciar que a evolução dessas determinantes podem melhorar e facilitar o desenvolvimento de estratégias de cuidados eficientes e adequadas para pacientes que sofrem de com alguma doença mental Assim, o número avançado de casos podem ser mitigado de forma gradativa. Conclusão: Dando ênfase a questões sociais e econômicas, nota-se que esses fatores afetam diretamente a adesão ao tratamento e diagnóstico aos necessitados e que mesmo com todos os esforços voltados a essa temática até os dias atuais ainda é visto uma desigualdade na forma em como é ofertado o  sistema de saúde a população