Vol. 12 No. 26 (2020): January - June

Cover: this edition could not go unnoticed the pandemic that affects all of humanity, illustrating in its images the vulnerability of an entire planet to the loss of health due to the existence of COVID-19. Design by MSc. Lenny Mendoza (lennymendoza@ucla.edu.ve) from the Universidad Centroccidental Lisandro Alvarado. Venezuela. In the same way, our editorial dedicates its lines to this fact that is and will be an isthmus in history.