El modelo dominante de la circulación atmosférica presume que el aire más caliente sube, generando así los vientos horizontales. La teoría de la bomba biótica (BPT) [1] propone un segundo mecanismo, en la cual la condensación intensa sea la causa primaria de los vientos superficiales. Los críticos de la BPT discuten que cualquier movimiento del aire resultando de la condensación sea isotrópico [2]. Este artículo explora la física de la condensación de vapor de agua bajo condiciones atmosféricas livianas, utilizando una estructura experimental diseñada para tal fin. Los datos demuestran una correlación altamente significativa (R2 >0.96, p valor <0.001) entre los flujos de aire observados y los cambios en la presión parcial resultante de la condensación.

This paper further explores the physics of water condensation, using an experimental structure designed for that purpose. The data show a highly significant correlation (R2 >0.94, p value <0.001) between observed airflows and partial pressure changes from condensation, when the results of different experiments are pooled. Changes in air density on cooling provide insufficient energy to account for the airflow. The finding is that the kinetic energy of the chilled air falls short by an order of magnitude, even to move a relatively small proportion of the 20 kg of air contained within the structure. Meanwhile the physics of condensation indicate a surplus of kinetic energy is made available from the air surrounding the locus of condensation. At low rates of condensation a considerable proportion of the available kinetic energy in the enclosed air is absorbed in friction and turbulence. That proportion reduces with higher rates of condensation.

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Mathematical models are being used extensively in the study of SARS-CoV-2 transmission dynamics, becoming an essential tool for decision making concerning disease control. It is now required to understand the mechanisms involved in the interaction between the virus and the immune response effector cells, both innate and adaptive, in order to support lines of research related to the use of drugs, production of protective antibodies and of course, vaccines against SARS-CoV-2. The present study, using a system dynamic approach, hypothesizes over the conditions that characterize the fraction of the population which get infected by SARS-CoV-2 as the asymptomatic patients, the mild symptomatic, acute symptomatic, and also super-spreaders, in terms of innate immune response, the initial virus load, the virus burden with shedding events, and the cytokine levels.

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