Recently, a new method to analyze biological nonstationary stochastic variables has been presented. The method is especially suitable to analyze the variation of one biological variable with respect to changes of another variable. Here, it is illustrated by the change of the pulmonary blood pressure in response to a step change of oxygen concentration in the gas that an animal breathes. The pre...

A complex b-structure on a manifold M with boundary is an involutive subbundle bT 0,1M of the complexification of bTM with the property that CbTM = bT 0,1M + bT 0,1M as a direct sum; the interior of M is a complex manifold. The complex b-structure determines an elliptic complex of b-operators and induces a rich structure on the boundary of M. We study the cohomology of the indicial complex of t...

En el marco de la pandemia covid-19, arte se convirtió en uno sus interpretantes más vigorosos, ejerciendo toda una pedagogía para transformar contacto inmediato mediatizado. Nuestro corpus conforma por tres conjuntos imemes que giran torno a del covid-19 y apoyan imágenes macro provenientes las artes plásticas. Se tratará analizar, desde perspectiva peirceana, sociosemiótica operacional (Trave...