The University of Valle (Spanish: Universidad del Valle), also called Univalle, is a public, departmental, coeducational, research university based primarily in the city of Cali, Valle del Cauca, Colombia. It is the largest higher education institution by student population in the southwest of the country, and the third in Colombia, with more than 30,000 students. The university was established by ordinance No. 12 of 1945, by the Departmental Assembly as the Industrial University of Valle del Cauca (Spanish: Universidad Industrial del Valle del Cauca), under the leadership of Tulio Ramírez Rojas and Severo Reyes Gamboa.The university has two campuses in Cali. The main one, known as University City of Melendez (Spanish: Ciudad Universitaria Meléndez, CUM), is located in the southern neighborhood of Melendez and hosts the faculties of Engineering, Humanities, Integrated Arts, Sciences, and Social Sciences and Economics, as well as the institutes of Education and Pedagogy, and Psychology. Its second one, located in the centric San Fernando neighborhood, hosts the faculties of Administration Sciences and Health. The university also has several satellite campuses across the department in the cities of Buenaventura, Buga, Caicedonia, Cartago, Palmira, Tuluá, Yumbo, and Zarzal, and one campus in the neighboring Cauca department in the city of Santander de Quilichao. The university offers education at technological, undergraduate and postgraduate levels, with 258 academic programs, which includes 65 master and medical specialties, and 8 doctorates. Also, it hosts an excellence research center, six research centers, three research institutes, and 204 research groups.The university is member of several university organizations including the Association of Colombian Universities (ASCUN), the Iberoamerican Association of Postgraduate Universities (AUIP), and the Iberoamerican University Network Universia. The Valle, National and Antioquia universities form what is known as the Golden Triangle of higher education in Colombia, being among the most selective and competitive universities in the country. It is one of the 15 universities in the country to have received a high quality institutional accreditation by the Ministry of Education, through resolution 2020 of June 3, 2005. The accreditation was for eight years, making the university one of only a few to be accredited for such a duration. The university is considered a premier school in the country and usually excels in its Health and Engineering programs.
Computational simulation is a valuable tool for advancing personalized ergonomics. This study evaluated the ability of musculoskeletal simulation to estimate individual lumbar loading during manual lifting tasks representative of construction activities. Fifty-six Colombian adults were recruited to reflect national anthropometric distributions and grouped by BMI and stature. Participants performed two standardized lifting tasks with a 10 kg load: symmetric lifting from the floor to xiphoid height and lateral lifting from a 0.40 m surface to shoulder height with contralateral transfer. Whole-body kinematics and ground reaction forces were processed in OpenSim software using the validated model to estimate L5-S1 compression and shear forces. Results showed a moderate association between lumbar compression and body weight, while shear forces exhibited low correlations with kinematic variables. Subject-specific scaled models revealed substantial inter-individual differences in lumbar loading related to lifting technique and anthropometric characteristics, highlighting the potential of musculoskeletal simulation for personalized risk assessment in construction.
This study analyzes the dynamic interdependence between tourism activity, energy transition variables, and macroeconomic uncertainty in Spain from 2019 to 2024. Using a Quantile Connectedness Approach based on a Quantile Vector Autoregression (QVAR) model, it captures asymmetric and state-dependent spillovers among tourism emissions, jet fuel and carbon prices, inflation, and uncertainty indicators. Results show that the tourism-energy nexus forms a highly interconnected system whose intensity varies across market regimes. During crises, energy and uncertainty variables dominate as shock transmitters, while in recovery phases, air tourism regains influence, supporting system reactivation. Jet fuel and carbon prices are key transmission channels linking tourism and macroeconomic volatility, with inflation and policy uncertainty amplifying effects. Carbon pricing evolves from a volatility source to a stabilizing mechanism as transition expectations consolidate. The findings highlight asymmetric resilience in tourism and provide insights into policies aligning tourism recovery with energy transition and climate goals.
Background:Gastric cancer (GC) incidence varies markedly across Colombia. Host genetic polymorphisms in cytokine genes modulate the inflammatory response to Helicobacter pylori and may influence disease progression. Objective:To evaluate IL-1B-511, IL-10-1082 and TNF-A-308 polymorphisms and their association with gastric precursor lesions in Colombian populations with contrasting GC risk. Methods:We studied 160 dyspeptic patients from Túquerres (high risk) and 105 from Tumaco (low risk). Gastric lesions were classified using the Sydney system. Cytokine polymorphisms were genotyped by polymerase chain reaction-restriction fragment length polymorphism and sequencing. Associations were assessed using logistic regression. Results:The IL-1B-511TT and IL-10-1082AA genotypes were significantly more frequent in Túquerres than in Tumaco (p < 0.05). Individuals carrying the IL-10-1082AG genotype had a significantly higher risk of gastric atrophy (odds ratio = 5.45; 95% confidence interval, 1.0-30.59). Conclusion:IL-10-1082AG is associated with increased risk of gastric atrophy in high-risk Colombian populations, supporting its potential role as a biomarker of GC susceptibility.
In the present work, a combined theoretical-experimental approach was employed to elucidate the structure of a modified UiO-67 (Zr/Ti) MOF functionalized with MoO2Cl2 through a three-step process and to propose a detailed mechanism for the oxygen atom transfer reaction. Experimental characterization techniques (X-ray diffraction, X-ray photoelectron spectroscopy, and electron paramagnetic resonance (EPR)) were integrated with periodic and cluster-based density functional theory calculations to validate the synthesis and to model the catalytic behavior. EPR data confirmed the formation of Mo(V) species during the catalytic cycle, supporting the intermediates proposed by theoretical studies. This synergistic strategy enabled a deep understanding of both the synthesis process and the catalyst's function, demonstrating how theory-guided design and experimental validation can drive the development of next-generation MOFs with tunable reactivity and scalable application potential.
Objective: To analyze the acute effects of rigid ankle taping on kinematic, kinetic, and performance variables during the single-leg drop jump in university combat sport athletes. Method: Thirty participants took part in a quasi-experimental within-subject design, performing single-leg drop jumps with and without rigid ankle taping. Measurements were obtained using the My Jump 2 application and the free motion analysis software Kinovea, recording jump height, stiffness, knee dynamic valgus, and maximum ankle dorsiflexion. Statistical analysis was conducted with the Wilcoxon signed-rank test, with significance set at p < 0.005. Results: Rigid ankle taping significantly reduced maximum ankle dorsiflexion during landing (32.2 degrees vs. 29.9 degrees; Delta = 2.97; p < 0.005). No relevant changes were observed in knee dynamic valgus. In terms of performance, increases were noted in jump height and stiffness, although these differences were not statistically significant. Conclusion: Rigid ankle taping restricts ankle dorsiflexion without producing relevant changes in immediate performance, providing useful evidence for sports physiotherapy practice in combat sport athletes.
