Universidad Nacional Autónoma de México

Exploring the Role of the SLC12A Cation-Coupled Chloride Cotransporters in the Cardiovascular System

Cardiomyopathies are a major category of cardiovascular disease, significantly contributing to global morbidity and mortality. Their pathogenesis involves a complex interplay of genetic and environmental factors, with multiple gene families playing critical roles in disease progr...

An identity for the sum of residues related to Goldbach partitions

Abstract In this paper, we introduce the Goldbach varphi function, \varphi_{k}:\mathbb{Z}/p_{k}\#\mathbb{Z}\rightarrow\mathbb{R}, which provides a normalized representation of the remainder term in a double sieve of dimension \omega=2. We establish a fundamental identity connecti...

Attraction to water and polarization in dragonflies and damselflies along a light pollution gradient

Abstract Aquatic insects, like odonates, rely on polarized light as a visual cue to locate water bodies for reproduction. However, artificial polarization from light pollution can lead them into ecological traps. This study investigates odonate preference for polarized light cues...

How Norms Depend on the Presence and Status of Observers: The Relational Contingency of Everyday Behaviors in 90 Societies

Norms are fundamental to social life, but basic questions about how they are affected by social context remain. Specifically, how do normative constraints depend on the presence and status of observers, and how do such relational contingencies vary across cultures? Using data fro...

Observation of critical scaling in the Bose gas universality class

Critical exponents characterize the divergent scaling of thermodynamic quantities near phase transitions and allow for the classification of physical systems into universality classes. While quantum gases thermalizing by interparticle interactions fall into the XY model universal...

ODIN: Confirmation and 3D Reconstruction of Six Massive Protoclusters at Cosmic Noon

Abstract Protoclusters represent sites of accelerated galaxy formation and extreme astrophysical activity characteristic of dense environments. Identifying massive protoclusters and mapping their spatial structures are therefore crucial for understanding how large-scale environme...

A Hybrid High-Order Method for the Power-Law Brinkman Problem with Robust Error Estimates in all Regimes

Abstract. In this work, we propose and analyze a new hybrid high-order method for the Brinkman problem for fluids with power-law viscosity. The proposed method supports general meshes and arbitrary approximation orders and is robust in all regimes, from pure (power-law) Stokes to...

Liquid–Liquid Extraction of Chromium(III) with Trihexylammonium Octanoate Using Thiocyanate as Extractant

Thiocyanate ions (SCN−) play a critical role in the extraction of Cr(III) from aqueous solutions into the ionic liquid trihexylammonium octanoate ([T6AC7COO]). Extractions were carried out at room temperature without pH adjustment, as the process remained effective despite pH var...

Strategic selfing as reproductive assurance in response to pollinator instability: The mixed mating system of a dry-season flowering pioneer shrub, Wigandia urens

Abstract In the context of global pollinator decline, understanding reproductive strategies under unpredictable environments is crucial. Wigandia urens (Boraginaceae) is a dominant shrub in central Mexico that blooms during the dry season when pollinator activity is significantly...

Enabling Sustainable Food Supply Chain Design Through Life Cycle Assessment and Network Optimization: A Plant-Based Protein Case Study in the Mexican Cold Chain

This study presents an integrated approach for sustainable food supply chain design by evaluating how sourcing geography and logistics network structure influence Global Warming Potential (GWP) in a multi-echelon Mexican cold chain integrating Life Cycle Assessment (LCA) and Line...

Degradation of malachite green by Sm2O3 microspheres synthesized by the coprecipitation method

This work reports the synthesis of samarium oxide (Sm2O3) microspheres and their effectiveness in degrading malachite green (MG) dye, both in the dark and under UV light. Single-phase cubic Sm2O3 (C-type) was prepared by a direct coprecipitation method, followed by calcination at...

Data Compression of the D1200 Suite: Achieving the Optimal Balance Between Size and Accuracy with the Diet‐ D200 Subset

ABSTRACT The evaluation of non‐covalent interactions remains a cornerstone of density functional theory benchmarking, yet the increasing size of reference datasets like the D1200 presents a significant computational bottleneck. This work introduces an optimized “Diet‐D1200” proto...

Sleep Wellness Education: A Museum-University joint forces project

Abstract Most educational interventions available primarily target parents and caregivers. Early childhood represents a crucial period of rapid cognitive development, during which play activities enhance brain structure and function, thereby promoting executive functions. Through...

Earliest simultaneous multi-color optical observations of GRB 230328B: from 41 seconds to the host-galaxy identification

Abstract We present a multiwavelength study of the long-duration gamma-ray burst GRB 230328B, combining prompt γ-ray observations with exceptionally early simultaneous optical photometry and extensive X-ray, radio, and host-galaxy follow-up. NUTTELA-TAO began simultaneous g′r′i′...

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...

Plasmonic Studies Using Self-Assembled Metallic Nanostructures Deposited on a Lithographically Patterned Substrate

Self-assembled artificial nanostructures, such as DNA origami, have attracted interest as templates for the placement of inorganic materials because their design enables the incorporation of binding sites for attaching nanocomponents with nanometer-scale precision. In this work,...

Maternal Dietary B-Complex Vitamin Pattern and Risk of Complex Congenital Heart Defects in a Mexican Population

Background/Objectives: Congenital heart defects (CHDs) are among the most common congenital anomalies worldwide, and maternal nutrition during early pregnancy may influence their development. Although previous studies have mainly evaluated individual B-complex vitamins, the contr...

A systematic review of the effects of vanadium exposure on the health of human populations

BACKGROUND: Vanadium is a metal naturally occurring in various ecosystems. Both natural and anthropogenic sources contribute to high concentrations in the air, soil, and water. Several experimental and epidemiological studies have linked this exposure to multiple adverse health e...

Tinea capitis in the Americas: Epidemiological Trends and Etiological Distribution from a Systematic Review

Background: Tinea capitis remains one of the most common superficial fungal infections in children worldwide and represents an important public health concern due to its high prevalence, potential complications, and changing epidemiology. This study aimed to characterize the epid...

Population Structure, Fecundity, and Reproductive Patterns of Erichsonella attenuata (Isopoda: Valvifera: Idoteidae) in Tamiahua Lagoon, Veracruz, Mexico

Erichsonella attenuata is a free-living marine isopod distributed across the Gulf of Mexico; however, quantitative information on its population structure and reproductive biology remains limited. We examined 2315 individuals collected in Tamiahua Lagoon, Veracruz, Mexico, to des...