The aim of this article is to provide rigorous at scale experimental evidence on the effectiveness of an ethnomathematics education program. This article describes and evaluates the impact of JADENKA (pronounced Ha-den-go), an intercultural bilingual mathematics program designed to increase the mathematical and ethnomathematical skills of the Ngabe preschoolers, within the comarca Ngabe-Buglé in Panama. To our knowledge, this is the first study to evaluate the effectiveness of an ethnomathematics intervention in preschool education through an RCT.

Question: Does reopening schools in the pandemic increase COVID-19 incidence and mortality?
Findings: On average, there was no systematic association between school reopening and COVID-19 incidence or mortality in So Paulo State, up to 12 weeks after reopening. This was also the case for schools in most vulnerable conditions. Aggregate mobility was already high before the school reopening and did not significantly increase afterwards.

Question: Does reopening schools in the pandemic increase COVID-19 incidence and mortality?
Findings: On average, there was no systematic association between school reopening and COVID-19 incidence or mortality in So Paulo State, up to 12 weeks after reopening. This was also the case for schools in most vulnerable conditions. Aggregate mobility was already high before the school reopening and did not significantly increase afterwards.

Creativity is a critical human 21st-century skill that allows us to produce novel and valuable ideas. Creative ideas are original and make a unique contribution to any field, but also, they help to solve complex problems that humanity is continuously facing. Creativity is essential at the individual level to solve problems on the job and in daily life. At the societal level, creativity can lead to new scientific findings, new movements in art, and new inventions.

Creativity is a critical human 21st-century skill that allows us to produce novel and valuable ideas. Creative ideas are original and make a unique contribution to any field, but also, they help to solve complex problems that humanity is continuously facing. Creativity is essential at the individual level to solve problems on the job and in daily life. At the societal level, creativity can lead to new scientific findings, new movements in art, and new inventions.

The main objective of this publication is to enable access to concepts and regulations to carry out an adequate management of the waste generated in health facilities in the region, by defining a normative and concept framework based on the international standards proposed by the World Health Organization (WHO). This to guarantee the adequate hygiene and safety of the workers and users of these establishments.

The main objective of this publication is to enable access to concepts and regulations to carry out an adequate management of the waste generated in health facilities in the region, by defining a normative and concept framework based on the international standards proposed by the World Health Organization (WHO). This to guarantee the adequate hygiene and safety of the workers and users of these establishments.