Autonomous University of Yucatán

Multidisciplinary insights into Late Pleistocene-Holocene palaeoenvironment at the archaeo-palaeontological Loltún Cave site in Yucatán, Mexico

Abstract A lack of well-dated archaeological and palaeontological sequences containing proxy-based palaeoenvironmental information has hindered the reconstruction of long-term human-biodiversity interactions in Mexico. Here, we re-evaluate the stratigraphy of the Huechil Chamber...

The time has come: integrating vaccination and vector control for Aedes-borne disease prevention

Dengue control has entered a new phase. Vaccination and vector control are often considered separate interventions, yet they act at different and potentially complementary points in the transmission cycle. Vaccination provides individual-level protection against dengue in eligibl...

Physicochemical, Mechanical and Biological Characterization of a PCL/PLA-Based Biocomposite for Potential Dental Post Applications in Primary Teeth

Early childhood caries frequently affects maxillary anterior primary teeth, and their rehabilitation remains a clinical challenge due to the lack of suitable resorbable intracanal posts. This study aimed to develop and characterize a biodegradable polymer-ceramic biomaterial for...

Re-Epithelialization of Donor Sites and Meshed Skin Grafts Using Cryopreserved Cultured Cutaneous Allograft (Epifast®): Experience in Patients with Extensive Burns

Extensive full-thickness burns remain a major challenge in reconstructive surgery because limited donor-site availability frequently delays definitive wound coverage and increases the risk of infection, prolonged hospitalization, and hypertrophic scarring. Cryopreserved cultured...

Spontaneous Triplet Bicorial, Triamniotic Pregnancy Complicated by A Hybrid Spectrum of Selective Fetal Growth Restriction and Twin to Twin Transfusion Syndrome

BACKGROUND: Spontaneous triplet pregnancy is a rare occurrence (1 in 8,000 pregnancies) that carries an 8.2-fold higher risk of developing monochorionic placentation compared to pregnancies resulting from assisted reproductive technologies. In this case, the coexistence of the “h...

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...