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Rev Bras Epidemiol 2021 3;24:e210023. Epub 2021 May 3.

Instituto Multidisciplinar em Saúde, Universidade Federal da Bahia - Vitória da Conquista (BA), Brasil.

Objective: To evaluate the association between the co-occurrence of risk behaviors (RB) and the family context in Brazilian adolescents.

Methods: Cross-sectional study on 101,534 students from the 9th grade of elementary school in the National Survey of School Health - PeNSE 2015. The co-occurrence of RB was estimated by the sum of the presence of sedentary behavior, low fruit consumption, regular consumption of alcohol and tobacco. Read More

Int J Environ Res Public Health 2021 Apr 29;18(9). Epub 2021 Apr 29.

Department of Administration, Yuk-buk Elementary School, Yongin 17061, Korea.

Head Start is a nationwide developmental program for low-income families. This study aimed to investigate the association between the Head Start program and children's BMI status, as well as their quality of life with respect to socioecological obesogenic factors. This cross-sectional study employed the Early Childhood Longitudinal Study-Kindergarten cohort (ECLS-K) in which the data were collected in 2007 and analyzed in 2019. Read More

Int J Environ Res Public Health 2021 Apr 29;18(9). Epub 2021 Apr 29.

School of Sport, Exercise and Health Sciences, Loughborough University, Loughborough LE11 3TU, UK.

Sedentary behaviour (sitting) is a risk factor for adverse health outcomes. The classroom environment has traditionally been associated with prolonged periods of sitting in children. The aim of this study was to examine the potential impact of an environmental intervention, the addition of sit-stand desks in the classroom, on school children's sitting and physical activity during class time and after school. Read More

Prospects (Paris) 2021 Apr 28:1-17. Epub 2021 Apr 28.

Teachers College, Columbia University, 525 W 120th St, New York, NY 10027 USA.

This article seeks to use Dewey's interpretation of pragmatism and education as a model for how dominant notions of school exemplify a colonizing theory of nature. The article argues that Dewey sought to commodify nature as a tool for human progress. This aspect of Dewey's beliefs is further demonstrated in the kind of schooling that is being implemented through globalization. Read More

Microb Pathog 2021 Apr 30:104917. Epub 2021 Apr 30.

Department of Pharmacology, Robert Wood Johnson Medical School, Rutgers The State University of New Jersey, Piscataway, NJ, 08854, USA. Electronic address:

The obligate intracellular bacterium Chlamydia trachomatis is an important human pathogen with a biphasic developmental cycle comprised of an infectious elementary body (EB) and a replicative reticulate body (RB). Whereas σ, the primary sigma factor, is necessary for transcription of most chlamydial genes throughout the developmental cycle, σ is required for expression of some late genes. We previously showed that the Chlamydia-specific transcription factor GrgA physically interacts with both of these sigma factors and activates transcription from σ-and σ-dependent promoters in vitro. Read More