La tesis se enfoca en el estudio del concreto permeable y tiene como objetivo evaluar los parámetros necesarios para su diseño y producción utilizando materiales disponibles en la región Piura. El análisis se lleva a cabo siguiendo la metodología recomendada por el American Concrete Institute (ACI), así como las pautas establecidas por las normas técnicas para el concreto permeable de ASTM International y las normativas peruanas correspondientes. La actual investigación se presenta como una propuesta que intenta reducir los daños que las intensas precipitaciones pluviales ocasionan a la infraestructura vial de nuestro país, contribuyendo así a la sostenibilidad y resistencia de nuestras carreteras ante los retos climáticos que enfrentamos. Se ha determinado que las propiedades primordiales a examinar son: la resistencia a compresión, permeabilidad y contenido de vacíos. En...

“Quarantine and the restrictions necessitated by the COVID-19 pandemic have generated problems in nutrition and physical condition around the world. We aimed to determine factors associated with changes in perceived weight and lifestyle factors during the COVID-19 quarantine in Latin America, conducting a cross-sectional study based on a survey administered in more than a dozen countries during June–August 2020. Perceptions of weight changes and alterations in other habits were investigated and were associated with social factors and self-reported diseases. Of 8800 respondents, the majority perceived that they had gained weight and had been less physically active. Being female, living in Bolivia, obesity, and stress were factors associated with a higher perception of weight gain. A higher perception of physical activity was also associated with living in Chile, being of older age, be...

“Quarantine and the restrictions necessitated by the COVID-19 pandemic have generated problems in nutrition and physical condition around the world. We aimed to determine factors associated with changes in perceived weight and lifestyle factors during the COVID-19 quarantine in Latin America, conducting a cross-sectional study based on a survey administered in more than a dozen countries during June–August 2020. Perceptions of weight changes and alterations in other habits were investigated and were associated with social factors and self-reported diseases. Of 8800 respondents, the majority perceived that they had gained weight and had been less physically active. Being female, living in Bolivia, obesity, and stress were factors associated with a higher perception of weight gain. A higher perception of physical activity was also associated with living in Chile, being of older age, be...