Autonomous University of Yucatán

Discrete wave dynamics in vibrating membranes: A cellular automaton approach

We introduce a two-dimensional cellular automaton (CA) framework in which wave-like membrane dynamics emerge from purely local, discrete interactions. The model evolves second-order local rules with explicit velocity, acceleration, and optional damping, combined with an asynchron...

Socioecological Trade-offs in the Yucatan Peninsula: Stakeholder Perceptions of How Urban and Tourism Development Reshape Nature’s Contributions to People

Tourism expansion and urban development in the Yucatan Peninsula have intensified pressures on ecosystems, altering the natural contributions to people (NCP) that sustain regional wellbeing. To better understand emerging socioecological conflicts, we applied a multi-criteria anal...

The Effect of SolvationSphere Composition on theNucleophilic Substitution Mechanism: The Hunt for the Elusive CarbocationIntermediate

Abstract Despite its ubiquity, the SN1 carbocation intermediate and its reaction profile have remained computationally elusive, owing to the sensitivity to the number of solvating molecules and the flat potential energy surface. The ionization step for solvolysis of tert-butyl ch...

Salivary Cobalt, Nickel, Chromium and Titanium After Fixed Orthodontic Appliance Removal: A 3-Month Pilot Longitudinal Study

Objective: Our objective was to determine the salivary levels of cobalt, nickel, chromium, and titanium ions at the end of fixed orthodontic treatment and during the post-removal period (1 and 3 months after removal of the fixed appliance). Methods: This pilot longitudinal study...