Abstract Objectives The present study aimed to develop an application to guide healthcare professionals on using personal protective equipment (PPE) during the COVID-19 pandemic and prevent and treat skin lesions caused by these devices. Methods This is a study on technological production. The framework for application development consisted in the following phases: Phase 1-“Design: identification of application development requirements;” Phase 2-“Application prototype development”: including an integrative literature review in major databases; Phase 3-“Application construction”: elaboration of the decision tree, algorithm, database structuring, and software development; Phase 4-“Transition”: application functionality test. Result Our application Simplifica EPI is an innovative technology; this software is a tool to assist healthcare professionals in using PPE. In addition, it describes how to prevent and care for skin lesions caused by PPE. Simplifica EPI has 25 screens and 32 images. It will be available on the Google Play Store after its registration with the Brazilian National Institute of Industrial Property. Conclusions After an integrative literature review, the application Simplifica EPI was developed as an innovative technology with great potential for use by healthcare professionals.

A formação da austenita em condições isócronas em um aço de baixo carbono e microligado com Nb, a diferentes taxas de aquecimento e usando curvas dilatométricas, foi estudada utilizando o modelo de Johnson-Mehl-Avrami-Kolmogorov (JMAK), em conjunção com a relação funcional entre a energia de ativação aparente e a taxa de aquecimento. Mostrou-se que essa relação funcional é logarítmica e que a energia de ativação aparente diminui de 152,5 para 118,1 kJ/mol, quando a taxa de aquecimento aumenta de 0,1 para 16 K/s, para o expoente n da equação de JMAK igual a 1,0.

The austenite formation under isochronal conditions in Nb micro-alloyed low carbon steel was studied using the Johnson-Mehl-Avrami-Kolmogorov (JMAK) model, for different heating rates and by means of dilatometric curves. The functional relationship between the apparent activation energy and heating rate was used in addition to this model. It was shown that this functional relationship is logarithmic and that the apparent activation energy decreases from 152.5 to 118.1 kJ/mol when the heating rate increases from 0.1 to 16 K/s, with the n exponent of the JMAK equation equal to 1.0.