Universidad Santo Tomás

Emergence of pedagogical reasoning in Biology teachers upon observing a feedback practice in biodiversity

The study investigates the emergence of pedagogical reasoning among in-service Biology teachers as they observe a video-recorded feedback practice focused on biodiversity. Unlike cognitivist perspectives, we conceive pedagogical reasoning as a situated and relational process that...

Mapping conservation status and land use change drivers in Chilean espinal agroforestry systems using CORONA KH‑4B and Sentinel‑2 data (1972–2023)

Abstract Over the past five decades, land-use change driven by government subsidies for tree planting—particularly of exotic species such as Pinus radiata and Eucalyptus spp.—together with irrigated agricultural expansion, has caused substantial declines in Chile’s ‘espinal’, an...

Factors associated with early death among children and adolescents with cancer in Brazil: a nationwide registry-based study

This study aimed to identify sociodemographic, clinical, and care-related factors associated with early death in childhood and adolescent cancer patients in Brazil. A retrospective cohort study was conducted using data from the Brazilian Hospital Cancer Registry Integrator Databa...

Dietary Fiber Supplementation Reduces Systolic Blood Pressure in High-Risk Patients with Type 2 Diabetes and Hypertension: A Secondary Analysis of a Randomized Trial

Background/Objectives: Dietary fiber supplementation has been associated with blood pressure (BP) reduction, but evidence comparing soluble (SDF) and insoluble (IDF) fiber types in high-risk populations is limited. This study aimed to compare the effects of SDF and IDF supplement...

Applicability of anthropometric indices for assessing speed and agility in children and adolescents: proposed reference values by age and sex

OBJECTIVE: a) To verify the applicability of anthropometric indices (body mass index (BMI), tri- weight index (TWI), body surface area (BSA)) for evaluating velocity and agility tests in children and adolescents, and to propose reference values. METHODS: A descriptive cross-secti...

Late Miocene capybara in the Atacama Desert reveals a wetter climate and a transcontinental dispersal pathway

Abstract We report the oldest record of a capybara (Caviidae: Hydrochoerinae) in Chile, dated at ca. 8.8 Ma, which along with paleobotanical proxy records, indicates a markedly wetter late Miocene Atacama Desert. Today hyperarid, the Atacama contrasts sharply with the semiaquatic...

Collector mobilities: Embodiment practices, relationality and sensoriality among seaweed collectors in southern Chile

New approaches to mobility studies have arisen in recent years, though most have focused on practices and experiences in metropolitan contexts. This research aims to expand the theoretical framework with its application in an eminently rural and archipelagic environment, where da...

Viridicatin from the Antarctic Fungus Penicillium sp. Protects Human Microglia and Patient-Derived Peripheral Immune Cells Against Oxidative Stress

Neurodegenerative diseases remain a major therapeutic challenge, with oxidative stress playing a central role in central and peripheral immune system dysfunction that leads to neuronal loss. Natural products from extreme environments represent an underexplored source of neuroprot...

Gender gaps in education and labor, human-capital efficiency and inclusive regional growth in Chile

Purpose This study investigates whether reducing gender gaps in education and labor markets contributes to regional economic growth in Chile. It provides empirical evidence on the economic costs of gender inequality across the country's diverse sixteen regions, highlighting how t...

Functional partitioning among core and peripheral bacteria shapes the giant kelp holobiont

The giant kelp Macrocystis pyrifera hosts diverse microbial communities integral to its ecological function, yet the distribution of microbial functions across different holobionts remains poorly resolved. Here, we used genome-resolved metagenomics to examine how microbial occupa...

Strategic responses to digital disruption: lessons from online business education in Chile

Purpose This paper provides a strategic and capability-based longitudinal analysis of the evolution of online undergraduate business education in Chile between 2012 and 2024. Rather than treating digital expansion as a purely technological shift, this study aims to examine how bu...