Universidad Técnica Particular de Loja

Parametric Module Using Recycled Fab Lab Materials Through Digital Technologies: A COIL Strategy Toward the Circular Economy

A Fab Lab is a collaborative environment that provides shared material resources, fabrication processes, tools, and knowledge for experimentation and prototype development. This study connects a previously developed parametric module with an exploratory material-recovery workflow...

Chemical and enantioselective analyses of Protium amazonicum resin essential oil: featuring the first natural occurrence of 4-epi-eudesm-5-ene

This study reports, for the first time, the chemical composition of an essential oil, distilled from the resin of Protium amazonicum collected in Ecuador within its native ecological context. Hydrodistillation gave an exceptionally high yield of 9.3% (w/w). GC analyses, using pol...

Red-Phase Countdown Timers at Signalized Intersections: A Systematic Review of Start-Up Efficiency and Premature Movement

Countdown timers at signalized intersections provide drivers with advance information about phase changes and may improve queue discharge, but previous studies have reported heterogeneous operational and behavioral effects. This systematic review synthesized field, controlled-roa...

Quantile Delta Mapping Downscaling of CMIP6 Daily Precipitation Under SSP1-2.6 to SSP5-8.5: Model Structure Dominates Projection Uncertainty at a Tropical High-Altitude Station

Daily precipitation projections for tropical high-altitude stations are critical for water resource management and flood risk assessment yet remain limited in data-scarce mountain environments. This study applies a chronology-preserving quantile delta mapping framework to the sam...

Multidimensional Quality of Scientific Infographics Produced in a GenAI-Required Undergraduate Geology Assignment: A Single-Course Artifact-Level Study from Ecuador

Generative artificial intelligence (GenAI) is increasingly used to produce scientific–visual material, but a polished result is not evidence that its content is correct or its sources are checkable. This study examined 41 infographics on scanning electron microscopy (SEM) and its...

Incidence trends and five-year survival of multiple myeloma and other plasma cell neoplasms in Girona, Spain: a population-based study, 1994–2020

Abstract Multiple myeloma is the most common malignant tumor originating in plasma cells. Its incidence varies across populations according to demographic and environmental factors, although its exact etiology remains unclear; reports on survival and advances in treatment are lac...

Evidence-Guided SEM–EDX Assessment of Electrodeposited Copper on a Screen-Printed Carbon Electrode: A Retrospective Case Study

Copper-modified screen-printed carbon electrodes require morphological and compositional assessment before further functionalization. This retrospective single-electrode study organizes SEM–EDX evidence into local composition, local coating interpretation, strip-region localizati...

Professional Quality of Life Among Institution-Based Psychologists in Ecuador: A Multilevel Cross-Sectional Study of Compassion Satisfaction, Burnout, and Secondary Traumatic Stress

Evidence on professional quality of life among psychologists in Latin America remains limited. This multicenter cross-sectional study examined compassion satisfaction, burnout, and secondary traumatic stress among 1078 Ecuadorian psychologists nested within 92 institutions using...

Cost–Accuracy Trade-Offs in Unpaved Rural Road Condition Assessment: Visual Indices and Smartphone-Based IRI in the Ecuadorian Andes

More than 90% of the road network of Loja, Ecuador, is unpaved and lacks an official condition metric. Low-cost measures relate to the IRI on pavements, but not demonstrably on unpaved roads. A 15 km Andean corridor was surveyed in one dry season with four visual–manual indices (...

Chemical and Enantioselective Characterization and Preliminary Biological Activities of Aristolochia lingulata Aerial-Part Essential Oil

Species of the genus Aristolochia are recognized as a rich source of structurally diverse specialized metabolites; however, the volatile chemical composition and biological properties of several Neotropical species remain poorly characterized. In particular, no information is cur...

Generative AI Adoption and Self-Reported Academic Integrity Risk: A Student Taxonomy in Latin American Higher Education

Generative Artificial Intelligence (GenAI) is reshaping technology-mediated learning environments in higher education, yet the structural heterogeneity of student adoption patterns—particularly across multimodal dimensions beyond text—remains empirically under-characterized. This...

Traffic Signal Noncompliance at Urban Intersections: Cycle-Level Evidence and Uncertainty-Aware Site Prioritization for Smart Urban Mobility in Ecuador

Traffic signal noncompliance at urban intersections remains a road-safety and traffic-management challenge, particularly where local monitoring and empirical evidence are limited. This study characterized yellow- and red-phase stop-line crossing events at eight signalized interse...

Psychological capital and gender: entrepreneurial orientation

Purpose This study examines the associations of psychological capital (PsyCap) and gender with entrepreneurial orientation (EO) among Ecuadorian entrepreneurs, providing evidence from an underexplored Latin American context. Design/methodology/approach Survey data were collected...

Curbside Parking Use, Turnover, and Regulatory Compliance in an Intermediate Latin American City: Field Evidence from Loja, Ecuador

Direct evidence on curbside parking use in intermediate Latin American cities remains limited. This study characterized parking duration, purpose, turnover, accumulation, and regulatory compliance across six segment–date sessions in central Loja, Ecuador. Of 1426 observed curbsid...

Spatial Inequalities in Public Space Quality: A GIS-Based Multi-Attribute Composite Index for Urban Planning in an Intermediate Latin American City

Public spaces are essential for urban well-being, social interaction, environmental quality, and territorial equity; however, their presence does not necessarily ensure adequate quality, accessibility, or multifunctionality. Although previous research has emphasized the importanc...