Mexico counts among the five countries with the highest biodiversity in the world. In the Yucatán Peninsula, there are aquatic ecosystems with a very special microbial diversity. These ecosystems are essential for the ecological equilibrium of the region, and are…

Total internal reflection microscopy (TIRM) measures the position of a Brownian particle above an interface by using its scattering of an evanescent wave. From the knowledge of the trajectory it is possible to reconstruct the interaction potential between the Brownian…

Interstellar dust was first identified through the extinction that it causes of optical starlight. Initially, observational and theoretical studies of extinction were made to identify simple ways of removing the effect of extinction. Over the last few decades it has…

In this study, we focus on the polarization angle of light scattered by terrestrial atmosphere-surface systems. The polarization angle describes the orientation of the plane in which the linearly polarized portion of light propagates. We show for skylight how this…

In this study, we focus on the polarization angle of light scattered by terrestrial atmosphere-surface systems. The polarization angle describes the orientation of the plane in which the linearly polarized portion of light propagates. We show for skylight how this…

This essay contests the view that humanity’s centuries-long experience with clocks is marked by a steady increase in time awareness that culminated in the modern compulsion known as “time discipline”. It argues, in contrast, that modern time discipline emerged during…

Electoral authoritarian regimes represent the modal type of political regimes in the developing world. To control electoral outcomes, such regimes may deploy a broad variety of repressive and manipulative measures. Despite their empirical as well as normative relevance, we possess…

"We shortly recall the mathematical and physical aspects of Talbot’s self-imaging effect occurring in near-field diffraction. In the rational paraxial approximation, the Talbot images are formed at distances z = p/q, where p and q are coprimes, and are superpositions…

The objective of this research is to elaborate an endogenous growth
model which allows us to examine the mutual interaction between economic
growth, labour market behaviour and population growth. We show how the
introduction of disequilibrium and some nonlinearities give…

The study of natural fluctuations has been of great interest for
economists for decades. Although the earliest formal models of business
cycles, around the 1950s, were endogenous (Hicks, Kaldor, Goodwin), the
dominant strategy during the most of the last century…