SUMMARY OBJECTIVE: The growing availability of devices for mobile learning has created new opportunities for teaching. With the development of smartphone apps based on audience response systems, there is a possibility to quickly assess student knowledge. The education of health professionals, including medical students, is an essential strategy for tuberculosis control. In the context of the coronavirus disease 2019 pandemic, audience response systems are very useful as online assessment tools. The aim of this study was to use the audience response systems Socrative to assess medical students during a class on tuberculosis. METHODS: This is a quasi-experimental before-and-after study, with pre- and post-tests carried out through the Socrative app, respectively, before and after a lecture on tuberculosis for medical students. Also, a cross-sectional study was carried out after the course to evaluate the participant's satisfaction through an electronic, structured questionnaire with a Likert-type scale. RESULTS: A total of 126 students were included in the study. The overall mean pre- and post-test scores were 5.98±1.59 and 8.37±1.36, respectively, with a statistically significant difference (p<0.0001). Almost all students were totally satisfied with the use of Socrative on pre- and post-tests. CONCLUSION: This study describes how the use of Socrative in a tuberculosis class was well received by students. In addition, the baseline knowledge on tuberculosis was low in some topics, with some improvement after the lecture. These findings emphasize the need to further improve the students’ knowledge on tuberculosis and help instructors customize the lecture based on the gaps identified in the Socrative assessment.

Abstract Ôrí (1989) is documentary film directed by Raquel Gerber and guided by the speech of the black intellectual Maria Beatriz Nascimento. On one level, the work presents the story and thoughts of Beatriz, which are narrated by the author herself (in voice over). On another level, the documentary addresses the actions of political movements and black cultural institutions during the recording period between 1977 and 1988, in which Beatriz herself, as a militant, played an important role. Interconnecting these two plans, the film develops the concept of “quilombo” to narrate the Brazilian racial problem and the forms of resistance and struggle of the black people through institutions such as terreiros, escolas de samba, black soul parties, etc. In this article we intend to understand the thoughts developed by the film about Afro-Brazilian religions, investigating the insertion of such Black African liturgies and cosmologies in a broader aesthetic, ethical and political discourse. Initially, we present the methodology adopted and then we analyze in more detail the film object as an ethnographic and artistic work of multiple meanings.

Resumo Ôrí é um filme documentário de 1989, dirigido por Raquel Gerber e guiado pela fala da intelectual negra Maria Beatriz Nascimento. Em um plano, a obra nos apresenta a história e os pensamentos de Beatriz, sendo estes narrados pela própria autora (em voz over). Em outro plano, o documentário aborda ações dos movimentos políticos e das instituições culturais negras registradas no período das gravações entre 1977 e 1988 no âmbito das quais a própria Beatriz, como militante, teve uma participação importante. Interconectando essas duas instâncias, o filme desenvolve o conceito de quilombo para narrar a problemática racial brasileira e as formas de resistência e luta do povo negro por meio de instituições como terreiros, escolas de samba, bailes black, etc. Nesse artigo pretendemos entender o pensamento elaborado pelo filme acerca das religiões afro-brasileiras, investigando a inserção de tais liturgias e cosmologias afro-atlânticas em um discurso estético, ético e político mais amplo. Inicialmente apresentamos a metodologia adotada e em seguida analisamos mais detidamente o objeto fílmico enquanto obra etnográfica e artística de múltiplos significados.

Abstract Pathological parameters have been indicated as tumor prognostic factors in oral carcinoma. Objective: The objective of this study was to investigate the impact of pathological parameters on prognosis of patients affected only by tongue and/or floor of the mouth squamous cell carcinoma (SCC). Methodology: In total, 380 patients treated in the Brazilian National Cancer Institute (INCA) from 1999 to 2006 were included. These patients underwent radical resection followed by neck dissection. The clinical and pathological characteristics were recorded. The Kaplan-Meier method and Cox proportional hazards model were used in survival analysis. Overall survival (OS), cancer-specific survival (CSS) and disease-free interval (DFI) were estimated. Cox residuals were evaluated using the R software version 3.5.2. Worst OS, CSS and DFI were observed in patients with tumors in advanced pathological stages (p<0.001), with the presence of perineural invasion (p<0.001) and vascular invasion (p=0.005). Results: Advanced pathological stage and the presence of a poorly differentiated tumor were independent prognostic factors for OS and CSS. However, advanced pathological stage and perineural invasion were independent predictors of a shorter OS, DFI and CSS. Conclusion: Pathological stage and perineural invasion were the most significant pathological variables in survival analysis in tongue and/or floor of the mouth SCC.

Resumo Neste artigo apresento as transformações e continuidades do culto no Brasil a Legba, entidade africana de origem fon-ewe, com especial atenção a sua prática no tambor de mina maranhense. Parto do processo de reinterpretação feito pelos europeus dessa entidade na África e como esse processo se estendeu ao Brasil por ocasião da Diáspora Africana ocasionada pela escravidão. Meu argumento central é que esse processo de trocas estendido para as Américas ganhou novos interlocutores e complexidade ainda maior afetando os vários sistemas em contato. Se, por um lado, o trabalho da conversão obrigatória propiciou a demonização de Legba, por outro lado, certas características de Legba possibilitaram uma absorção do catolicismo segundo os princípios cosmológicos da mitologia africana de origem.

Abstract In this article I present the transformations and continuities in the cult of Legba in Brazil, an African entity of Fon-Ewe origin, paying special attention to its practice in the Maranhense mine drum. I start from the process of reinterpretation made by the Europeans of this entity in Africa and how this process was extended to Brazil during the African Diaspora caused by slavery. My central argument is that the extension of this process of exchanges to the Americas acquired new interlocutors and even greater complexity, affecting the various systems in contact. While, on one hand, the work of compulsory conversion led to the demonization of Legba, on the other, certain characteristics of Legba made possible an absorption of Catholicism in accordance with the cosmological principles of the African mythology of origin.

Resumo A entrevista com Sergio Ferretti foi realizada no contexto da pesquisa de doutoramento de Vagner Silva sobre o trabalho de campo e a produção de textos etnográficos na área dos estudos sobre as religiões afro-brasileiras. Com o tom informal de uma conversa entre colegas, ambos especialistas no assunto enfocado, Ferretti, conduzido pelas perguntas de Silva, discorre sobre seu longo e denso contato de pesquisa com a Casa das Minas de São Luís do Maranhão.

Abstract The interview with Sergio Ferretti was carried out in the context of Vagner Silva's doctoral research on fieldwork and the production of ethnographic texts on Afro-Brazilian religions. With the informal tone of a conversation between colleagues, both experts on the subject, Ferretti, led by Silva's questions, discusses his long and dense research contact with the Casa das Minas of São Luís do Maranhão.

In a survey of Agaricales fungi in Seasonal Semidecidual Forest remnants from Paraná State, southern Brazil, two Clitocella and two Rhodocybe species were identified. Based on morphological data, Clitocella pallescens is described as a new species, and a new combination is proposed to Clitocella himantiigena. Rhodocybe galerinoides and C. himantiigena are new records from Brazil. Rhodocybe caelatoidea, already registered in Paraná State, is also described, illustrated and discussed.

En un estudio de los hongos del orden Agaricales, en los remanentes del bosque estacional semideciduo en el estado de Paraná, al sur de Brasil, fueron identificadas dos especies de Clitocella y dos de Rhodocybe. Como resultado de los análisis morfológicos, se describe Clitocella pallescens como nueva especie para la ciencia; además, se propone una nueva combinación: Clitocella himantiigena. Las especies Rhodocybe galerinoides y C. himantiigena son nuevos registros para Brasil. Rhodocybe caelatoidea, ya conocida en el estado de Paraná, es también descrita, ilustrada y discutida.

ABSTRACT Objective This study aimed to evaluate apoptosis by assessing cleaved caspase-3 immunoexpression in hyperplastic, potentially malignant disorder (PMD), and malignant tumors in intraoral and lower lip sites. Material and Methods A retrospective study using paraffin blocks with tissues from patients with inflammatory fibrous hyperplasia (IFH), actinic cheilitis, oral leukoplakia, lower lip and intraoral squamous cell carcinoma (SCC) was performed. The tissues were evaluated by immunohistochemical analysis with anti-cleaved caspase-3 antibody. Apoptotic area index was then correlated with lesion type. Results From 120 lesions assessed, 55 (46%) were cleaved caspase-3-positive. The SCC samples (n=40) had the highest apoptotic area indices (n=35; 87.5%). Significant differences were detected between SCCs and PMDs (p=0.0003), as well as SCCs and IFHs (p=0.001), regarding caspase-3 immunopositivity. Carcinomas of the lower lip had lower apoptotic area indices than intraoral cancer (p=0.0015). Conclusions Cleaved caspase-3 immunoexpression showed differences in oral SCCs and PMDs and demonstrated a distinct role of apoptosis in carcinogenesis of intraoral and lower lip cancer. In future, the expression of cleaved caspase-3 with other target molecules in oral cancer may be helpful in delineating the prognosis and treatment of these tumors.

Over the last decade, a number of religious groups have assumed differing positions on the relationship between 'black identity' and religion. In this article, I intend to present some of the tendencies in the current debate between the Afro-Brazilian religions and the black Roman Catholic and Evangelical movements. I suggest that this debate be constructed from positions engendered from the interrelationships of these groups and from the policies for promoting the legacy of African symbols as a part of Brazil's national heritage.

INTRODUÇÃO: A carcinogênese caracteriza-se como um processo multifatorial, e a inativação da proteína p53 é uma alteração genética comumente observada nos carcinomas de células escamosas de boca (CCEB). OBJETIVO: Analisar e comparar a imunoexpressão da proteína p53, por meio dos clones DO-7 e PAb-240, em CCEB com localização intrabucal e em lábio inferior. MATERIAL E MÉTODOS: Foram selecionados 40 casos de CCEB, sendo 20 de localização intrabucal e 20 em lábio inferior. Foi realizado um estudo imuno-histoquímico utilizando os anticorpos anti-p53 clone DO-7 e PAb-240. A imunoquantificação foi realizada por meio de análise digital de imagem, e os resultados, submetidos a tratamentos estatísticos. RESULTADOS: A imunoexpressão da proteína p53 foi verificada com o anticorpo DO-7 em 13 casos (65%) de carcinoma intrabucal e em 19 (95%) de carcinoma de lábio inferior. Imunorreatividade para o anticorpo PAb-240 foi observada em 9 casos (45%) de lesões intrabucais e em 15 (75%) localizados em lábio inferior. Não foram observadas, segundo o teste de Mann-Whitney, diferenças estatisticamente significativas (p > 0,05) na expressão da proteína p53 entre as duas localizações estudadas, independentemente do anticorpo avaliado. Foram identificadas, pelo teste de Wilcoxon, diferenças estatisticamente significativas entre a expressão dos clones DO-7 e PAb-240 em cada um dos grupos analisados (valor p = 0,013 - lábio inferior; valor p = 0,016 - intrabucal). CONCLUSÕES: A expressão da proteína p53 observada nos CCEB, com localizações intrabucais e labiais, sugere a ocorrência de mutações no gene TP53. As diferenças quantitativas obtidas entre os anticorpos estudados, independentemente da localização das lesões, refletem uma especificidade distinta entre os clones DO-7 e PAb-240. O desenvolvimento de mais estudos será fundamental para estabelecer o anticorpo mais adequado para proteína p53 em CCEB.

BACKGROUND: Carcinogenesis is a multifactorial process and inactivation of p53 protein is a genetic change commonly observed in oral squamous cell carcinomas (OSCC). OBJECTIVES: To analyze and compare the expression of p53 protein through antibodies DO-7 and PAb-240 in OSCC samples located in the oral cavity and lower lip. MATERIAL AND METHODS: Forty cases of OSCC were selected and divided into oral cavity and lower lip groups (20 cases each). Immunohistochemical technique was performed using antibodies DO-7 and PAb-240. Quantification of the cases was performed through digital image analysis and underwent specific statistical treatments. RESULTS: Expression of p53 protein was verified with DO-7 antibody in 13 cases (65%) of oral cavity carcinomas and in 19 cases (95%) of lower lip carcinoma. PAb-240 positivity was detected in 9 cases (45%) of oral cavity lesions and in 15 cases (75%) located in the lower lip. According to Mann-Whitney test, there were no statistically significant differences between the expressions of p53 protein in both groups, regardless of the antibody used. According to Wilcoxon test, there were statistically significant differences between the expression of DO-7 antibody and PAb-240 in each of the analyzed groups (p-value = 0.013; lower lip p-value = 0.016 - oral cavity). CONCLUSIONS: The expression of p53 protein was observed both in the oral cavity and lip OSCC, which suggests the occurrence of mutations in TP53 gene. The quantitative differences between the antibodies studied, regardless of the site of the lesions, reflect different specificity between clones DO-7 and PAb-240. Further studies are required to establish the best antibody for p53 protein in oral squamous cell carcinomas.

Neste trabalho, pretendo analisar as relações de proximidade e antagonismo existentes entre o neopentecostalismo e as religiões afro-brasileiras, e suas conseqüências na transformação do imaginário social brasileiro construído a partir dos valores existentes nesses dois campos.

In this work, I analyze the relations of proximity and antagonism between Neo-Pentecostalism and Afro-Brazilian religions, and their consequences for the transformation of the Brazilian social imaginary constructed on the basis of values derived from these two fields.

Neste trabalho, pretendo analisar as relações de proximidade e antagonismo existentes entre o neopentecostalismo e as religiões afro-brasileiras, e suas conseqüências na transformação do imaginário social brasileiro construído a partir dos valores existentes nesses dois campos.

In this work, I analyze the relations of proximity and antagonism between neo-Pentecostalism and Afro-Brazilian religions, and their consequences for the transformation of the Brazilian social imaginary constructed on the basis of values derived from these two fields.

O ensaio analisa o papel da arte na abordagem de Lévi-Strauss da cultura, enfatizando o modo pelo qual um determinado tipo de expressão artística, a poesia, poderia ser colocada no conjunto das preocupações estruturalistas em antropologia.

The essay analyzes the role of art in Levi-Strauss’ approach to culture, and emphasizes how a particular artistic expression - poetry -can be understood by struturalistic anthropology.