ABSTRACT Introduction: Exergames or active video games are digital platforms with functionality associated with body movement, which dialogue with improving physical activity levels, stimulating pleasure in practice and adherence to change habits, physically active behavior, and better quality of life. Objective: This study aimed to synthesize the available evidence on the contribution of exergame to Body Mass Index, physical activity level, glycemic control, blood pressure, and cardiorespiratory fitness in adolescents. Methods: This is a systematic review, reported following the PRISMA writing recommendations, without language restrictions, for articles indexed in the following databases: MEDLINE / PubMed, Embase, Cochrane Library, and Lilacs. Data extraction was performed analogously in a spreadsheet previously tested and standardized. The assessment of the risk of bias in the included studies was carried out by the RoB 1.0 tool in all of its domains in duplicate of reviewers. Initially, 3.039 studies were found. Results: The studies cover a total of 526 adolescents aged ten to 19. The most used platform in the studies was the Nintendo Wii, followed by the PlayStation, Xbox 360, and Dance Dance Revolution. The results indicated that interventions using exergames were effective for changing BMI, but there was no evidence on cardiovascular outcomes, with no effective changes in glycemic control and blood pressure and a significant response (p <0.05) in cardiorespiratory fitness. Conclusion: The exergame points to satisfactory results in improving health and can be incorporated as a relevant public policy in the adolescent health promotion. (PROSPERO Registration CRD42020181772). Level of evidence II; Therapeutic studies - investigation of treatment results.

RESUMEN Introducción: Los Exergames o videojuegos activos son plataformas digitales con funcionalidad asociada al movimiento corporal, que dialogan con la mejora de los niveles de actividad física, estimulando el placer en la práctica y la adherencia a cambios de hábitos, conducta físicamente activa y mejor calidad de vida. Objetivo: Este estudio tuvo como objetivo sintetizar la evidencia disponible sobre la contribución del exergame al índice de masa corporal, nivel de actividad física, control glucémico, presión arterial y aptitud cardiorrespiratoria en adolescentes. Métodos: Se trata de una revisión sistemática, reportada siguiendo las recomendaciones de redacción de PRISMA, sin restricción de idioma, para artículos indexados en las siguientes bases de datos: MEDLINE / PubMed, Embase, Cochrane Library y Lilacs. La extracción de datos se realizó de manera similar en una hoja de cálculo estandarizada y probada previamente. La evaluación del riesgo de sesgo en los estudios incluidos se realizó mediante la herramienta RoB 1.0 en todos sus dominios por duplicado de revisores. Inicialmente, se encontraron 3.039 estudios. Resultados: Los estudios abarcaron un total de 526 adolescentes de 10 a 19 años. La plataforma más utilizada en estudios fue la Nintendo Wii, seguida de la PlayStation, Xbox 360 y Dance Dance Revolution. Los resultados indicaron que las intervenciones con exergames fueron efectivas para cambiar el IMC, pero no hubo evidencia sobre los resultados cardiovasculares, no hubo cambios efectivos en el control glucémico y la presión arterial, y una respuesta explicativa (p <0.05) en la aptitud cardiorrespiratoria. Conclusión: El exergame muestra resultados satisfactorios en la mejora de la salud y puede ser incorporado como una política pública relevante en la promoción de la salud de los adolescentes. (Registro PROSPERO CRD42020181772). Nivel de evidencia II; Estudios terapéuticos: investigación de los resultados del tratamiento.

RESUMO Introdução: Exergames ou vídeo games ativos são plataformas digitais com funcionalidade associada ao movimento corporal, que dialogam com a melhora dos níveis de atividade física, estimulando o prazer na prática e a adesão à mudança de hábitos, comportamento ativo e melhor qualidade de vida. Objetivo: Este estudo teve como objetivo sintetizar as evidências disponíveis sobre a contribuição do exergame para o Índice de Massa Corporal, nível de atividade física, controle glicêmico, pressão arterial e aptidão cardiorrespiratória em adolescentes. Métodos: Trata-se de uma revisão sistemática, relatada seguindo as recomendações de redação do PRISMA, sem restrição de idioma, para artigos indexados nas seguintes bases de dados: MEDLINE / PubMed, Embase, Cochrane Library e Lilacs. A extração dos dados foi realizada de forma análoga em planilha previamente testada e padronizada. A avaliação do risco de viés nos estudos incluídos foi realizada pela ferramenta RoB 1.0 em todos os seus domínios em duplicata de revisores. Inicialmente, foram encontrados 3.039 estudos. Resultados: Os estudos abrangeram um total de 526 adolescentes de dez a 19 anos. A plataforma mais utilizada nos estudos foi o Nintendo Wii, seguido do PlayStation, Xbox 360 e Dance Dance Revolution. Os resultados indicaram que as intervenções com exergames foram eficazes para alterar o IMC, mas não houve evidências sobre os desfechos cardiovasculares, sem alterações eficazes no controle glicêmico e na pressão arterial e uma resposta significativa (p <0,05) na aptidão cardiorrespiratória. Conclusão: O exergame aponta resultados satisfatórios na melhoria da saúde e pode ser incorporado como uma política pública relevante na promoção da saúde do adolescente. (Registro PROSPERO CRD42020181772). Nível de evidência II; Estudos terapêuticos: investigação dos resultados do tratamento.

ABSTRACT It was our objective to estimate the prevalence and associated factors with low aerobic fitness among adolescents. A cross-sectional study was conducted with 575 subjects aged 11-17 years from Criciúma, SC, Brazil. The 9-minute walk/run test was used to assess aerobic fitness. Sociodemographic data and daily habits were collected using a self-administered questionnaire. Anthropometric evaluation was also performed to calculate anthropometric indicators of obesity. The Chi-square test and the binary logistic regression were used. The prevalence of low aerobic fitness in boys aged 11-13 years was 46.0% and in girls 40.5% (p< 0.05), while in boys aged 14-17 years, the prevalence was 59.6% and in girls 46.6 % (p<0.05). Boys aged 11-13 (OR: 5.04; 95%CI 1.93-13.17) and those aged 14-17 years (OR:3.78; 95%CI 1.90-7.52) and girls aged 11-13 years (OR: 3.62; 95%CI 1.24-10.52) from private schools were about four times more likely of having low aerobic fitness compared to those from public schools. Girls aged 11-13 years (OR: 2.40; 95%CI 1.04-5.54) with inadequate sleep were more likely to have low aerobic fitness than those with adequate sleep. High prevalence of low aerobic fitness was associated with private schools and inadequate sleep in both sexes.

Abstract: The objective of this paper is to investigate if the most recent left turn in Argentina can be considered a critical juncture; understood here as a period of significant change capable of perpetuating itself in time and space. In this sense, a process-tracing method underlies the institutionalist-historical analysis in which it is proposed to delineate the permissive, productive and reproductive conditions of the election of Néstor Kirchner in 2003. Therefore, it is concluded that this Argentine period of change is not limited to purely national factors, but it is related to a much more complex personalist subjectivity that lasts until today.

Resumen: El presente trabajo tiene por objetivo investigar si el más reciente giro a la izquierda en Argentina puede ser considerado una coyuntura crítica; entendida aquí como un período de cambio significativo, capaz de perpetuarse en el tiempo y en el espacio. En ese sentido, se fundamenta un análisis institucionalista-histórico, bajo el método de process-tracing, en que se propone delinear las condiciones permisivas, productivas y reproductivas de la elección de Néstor Kirchner en 2003. Así que se concluye que ese período de cambio argentino no se resume a factores puramente nacionales, pero sí se relaciona con una subjetividad personalista mucho más complexa que perdura hasta hoy.

Abstract Aims: The objective was to estimate the prevalence and the factors of behaviors of provocation and control of the weight associated with dissatisfaction with the body image among adolescents. Methods: Cross-sectional study with 580 adolescents (11 to 17 years old) from Criciúma, Brazil. The body image was evaluated by the silhouettes scale and the behaviors of provocation and weight control by questionnaires. A multinomial logistic regression was used (p ≤ 0.05). Results: Of the total number of adolescents, 48.6% were dissatisfied with being overweight (male 47.9%, female 49.3%) and 22.9% dissatisfied with thinness (male 23.8%, female 22.1%). Male adolescents who were dissatisfied with being overweight were more likely to be joked and laughed at because of their appearance and lower chances of being nicknames due to their size or body weight, while those who were unsatisfied with being thin were more likely to joke and laughter because of the appearance, compared to satisfied. Female adolescents who were dissatisfied with being overweight were more likely to be laughed at because they were uncoordinated and without food for 24 h, while those who were unsatisfied with being thin were less likely to be joking and laughing because of their appearance and higher chances to be the targets of laughter because they are uncoordinated, compared to those that are satisfied. Conclusion: The dissatisfaction with body image was associated with different behaviors of provocation and weight control according to sex.

Being mercury one of the most toxic heavy metals present in the environment, it is of major concern to develop cleanup technologies to remove it from wastewater and recover mercury polluted ecosystems. In this context, we study the potential of some microporous titanosilicates and zirconosilicates for taking up Hg2+ from aqueous solutions. These materials have unique chemical and physical properties, and here we are able to confirm that they readily remove Hg2+ from aqueous solutions. Moreover, the presence of the competitive Mg2+ and Na+, which are some of the dominant cations in natural waters, does not reduce the uptake capacity of some of these materials. Thus, several inorganic materials reported here may have important environmental applications, efficiently removing Hg2+ from aqueous solutions.