Search

During the COVID 19 pandemic, wearing a mask has become the norm for personal protection. Low-cost face masks made from different cloth materials are common in developing countries. The efficiency of a mask is characterized by its constituent materials; however, its fitting performance is not yet defined. In this study, low-cost mask designs for children were developed. Preferences of children were obtained via a survey. The morphologies of the masks were developed using geometric origami. An experimental visualization test was established by simulating sneezes of children, considered as the riskiest event by which the virus can be spread. Given the lack of data on children, the main features of their sneezes were scaled from adult data. A quantitative methodology was developed to assess the performance of a mask by using tracer particles and recording with high-speed cameras. Five mask configurations were analyzed, considering the mask size and the presence of a filter and a nose clip. The mask size and presence of a clip were identified as key factors affecting the fitting performance during a simulated sneeze.

Este trabajo presenta los resultados de un análisis de las redes de académicos del Espacio Interdisciplinario (EI), con el objetivo de aportar a la discusión sobre el valor de las redes de colaboración en contextos académicos. Desde 2009, más de 650 docentes e investigadores han participado de los Programas de Núcleos y Centros Interdisciplinarios del EI. En este sentido, se sostiene que un análisis de las redes interdisciplinarias permite conocer los vínculos entre grupos e integrantes y esto posibilita reconocer el potencial de estos programas como herramientas de validación e intercambio del trabajo entre pares e instrumentos de difusión de la interdisciplina.