Burnout, autoeficácia e educação física: a produção acadêmica de 2008 a 2022 / Burnout, self-efficacy and physical education: academic production from 2008 to 2022 / Burnout, autoefectividad y educación física: la producción académica de 2008 a 2022

O presente trabalho teve como objetivo realizar um levantamento dos estudos sobre a síndrome de burnout e autoeficácia publicados entre 2008 e 2022 com professores de Educação Física (EF). É uma pesquisa de cunho bibliométrico, pautada numa abordagem quanti-qualitativa. As buscas foram feitas nas bases de dados da Capes, SciELO, LILACS e ERIC. Foram analisadas 56 publicações. Constatou-se que a maioria (69,6%, n = 39) foi publicada nos últimos cinco anos. Brasil, China e Turquia são os países com maior número de publicações sobre o tema. Apenas três artigos abordaram as categorias especificamente com professores de EF. Como resultado, conclui-se que há necessidade de se expandir os estudos sobre burnout e autoeficácia no Brasil e no mundo, especialmente com professores de EF, uma vez que os estudos são escassos, considerando os critérios de inclusão aplicados neste estudo. (AU)

The present work aimed to carry out a survey of studies on Burnout Syndrome and self-efficacy published between 2008 and 2022 with Physical Education teachers. It is a bibliometric research, based on a quantitative-qualitative approach. The searches were carried out in the CAPES, SciELO, LILACS and ERIC databases. Fifty-six publications were analyzed. It was found that the majority (69.6%, n = 39) were published in the last five years. Brazil, China and Turkey are the countries with the highest number of publications on the subject and only three articles addressed the subject specifically with Physical Education teachers. As a result, it is concluded that there is a need to expand studies on Burnout and self-efficacy in Brazil and in the world, especially with Physical Education teachers, since studies are scarce, considering the inclusion criteria applied in this study. (AU)

El presente trabajo tuvo como objetivo realizar un relevamiento de estudios sobre Síndrome de Burnout y autoeficacia publicados entre 2008 y 2022 con profesores de Educación Física. Se trata de una investigación bibliométrica, basada en un enfoque cuantitativo-cualitativo. Las búsquedas se realizaron en las bases de datos Capes, SciELO, LILACS y ERIC. Se analizaron 56 publicaciones. Se encontró que la mayoría (69,6%, n = 39) fueron publicados en los últimos cinco años. Brasil, China y Turquía son los países con mayor número de publicaciones sobre el tema y solo tres artículos abordaron el tema específicamente con profesores de Educación Física. Como resultado, se concluye que existe la necesidad de ampliar los estudios sobre Burnout y autoeficacia en Brasil y en el mundo, especialmente con profesores de Educación Física, ya que los estudios son escasos, considerando los criterios de inclusión aplicados en este estudio. (AU)

Irrigant Agitation Techniques versus Passive Ultrasonic Irrigation for Removing Debris from Curved Root Canals: An Environmental Scanning Electron Microscopic Study.

Introduction: The aim of this study was to compare the efficacy of passive ultrasonic irrigation (PUI) versus mechanical agitation of the irrigant promoted by the EasyClean (EC) and XP-Endo Finisher (XP-F) systems in removing debris from root canal walls, using environmental scanning electron microscopy (ESEM). Methods and Materials: Twelve curved mesiobuccal canals of mandibular molars were prepared with the ProTaper Next system up to file X2 (25/0.06). The specimens were embedded in flasks containing silicone putty, sectioned lengthwise, and a 4-mm long groove was made on the canal wall of the buccal half of the specimen, extending from 2 mm up to 6 mm short of the apex. Five cross-sectional markings were made along this groove to establish standardized locations for imaging. The same specimens were used to prepare a negative control group (without debris), a positive control group (completely covered by debris), and 3 experimental groups according to the final irrigation protocol employed: PUI, EC or XP-F. ESEM images were obtained and evaluated by 3 examiners. The amount of debris observed on the images was classified according to a 4-category scoring system. The kappa test was used to assess inter-examiner agreement, and the Kruskal-Wallis and Dunn tests were used to compare the scores (P<0.05). Results: The scores attributed to the PUI, EC, and XP-F groups were statistically similar to those attributed to the negative control group (P>0.05). Conclusion: Based on this in-vitro study, the mechanical agitation of the irrigant promoted by EC and XP-F was as effective as using PUI to remove debris from the root canal walls.

Estudo longitudinal dos efeitos da deficiência estrogênica sobre o fêmur de ratas / Longitudinal study of estrogen deficiency on fêmur rats

É cada vez maior a parcela de pessoas idosas na população brasileira e com este fenômeno o número de pessoas afetadas por patologias crônico-degenerativas. Dentre estas uma doença que merece destaque é a osteoporose, uma vez que vem se tornando um problema de saúde pública. Um dos principais fatores de risco para osteoporose é a deficiência estrogênica, sendo assim este estudo objetivou avaliar o efeito da deficiência estrogênica no tecido ósseo durante um período de 360 dias através de análise radiográfica e biomecânica. Para tanto 80 ratas, com 3 meses de idade e peso de aproximadamente 250g, foram divididas em 10 grupos experimentais (n=8) de acordo com o tempo de sacrifício e cirurgia a que foram submetidas (ovariectomia e cirurgia sham). As ratas pertencentes aos grupos OVZ e SHAM tiveram sua ração controlada (30g por animal). Após o período determinado (30, 60, 90, 180 e 360 dias das cirurgias) as ratas foram pesadas, anestesiadas e sacrificadas e seus fêmures retirados para análise. Os dados obtidos foram submetidos ao teste estatístico ANOVA e Tukey, com nível de significância de 5%. De acordo com os resultados obtidos observou-se que nos períodos de 30, 60 e 90 dias os efeitos da deficiência estrogênica sobre o tecido ósseo foram significativos.

The Brazilian population has undergone a process of aging, and this phenomenon with the number of people affected by chronic diseases is increasing. Among these a disease that deserves mention is osteoporosis, since it has become a public health problem. One of the main risk factors for osteoporosis is estrogen deficiency, so to better understand how estrogen deficiency affects the bone tissue present study aimed to evaluate the effect of estrogen deficiency on bone tissue over a period of 360 days by radiographic and biomechanics analysis. For this purpose 80 rats, 3 months old and weighing about 250g were divided into 10 groups (n = 8) according to the time of sacrifice and who underwent surgery (ovariectomy and sham surgery). The rats belonging to groups OVZ and SHAM had controlled his diet (30g per animal). After the specified period (30, 60, 90, 180 and 360 days of surgery) the rats were weighed, anesthetized and sacrificed, and their femurs were removed for analysis. Data were submitted to ANOVA and Tukey tests with significance level of 5%. According to the results obtained showed that in periods of 30, 60 and 90 days the effects of estrogen deficiency on bone tissue were significant