Pedagogical and Technological University of Colombia

Robustness, convergence, and homoclinic classes in the dynamics of the Hénon map

We analyze the dynamics of the Hénon map 𝑇 𝑎 , 𝑏 ⁡ ( 𝑥 , 𝑦 ) = ( 𝑦 + 1 − 𝑎 ⁢ 𝑥 2 , 𝑏 ⁢ 𝑥 ) from three complementary perspectives. First, we prove the persistence of a trapping region for parameters ( 𝑎 ′ , 𝑏 ′ ) near ( 1 . 4 , 0 . 3 ) , showing that the associated attractor 𝛬 𝑎 ′...

Exploratory characterization of bacterial communities and predicted functional profiles in six water samples from four Colombian Andean lakes using 16S rRNA gene amplicon sequencing

Northern Andean highland lakes support agriculture, water provision, and local livelihoods, but their bacterial communities remain insufficiently characterized. We conducted an exploratory survey of bacterial community composition and predicted functional potential in six water s...

Perceptions of government and health-sector corruption and inappropriate professional conduct during the COVID-19 pandemic among workers in 13 Latin American countries: a multicountry cross-sectional study

ABSTRACT Objectives To describe agreement with statements concerning perceived corruption in government and the health sector and perceived inappropriate acts by physicians and other health professionals during the COVID-19 pandemic, and to examine whether these perceptions diffe...

HUMAN DIGNITY IN THE FACE OF ARTIFICIAL INTELLIGENCE: A BIOETHICAL PERSPECTIVE FROM SOCIAL JUSTICE AND EDUCATION

Artificial Intelligence (AI) is one of the most significant technological shifts that has occurred in the 21st century, particularly in the social and educational environments. Although its analytical and predictive function presents unprecedented potentialities of development, i...

HUMAN DIGNITY IN THE FACE OF ARTIFICIAL INTELLIGENCE: A BIOETHICAL PERSPECTIVE FROM SOCIAL JUSTICE AND EDUCATION

Artificial Intelligence (AI) is one of the most significant technological shifts that has occurred in the 21st century, particularly in the social and educational environments. Although its analytical and predictive function presents unprecedented potentialities of development, i...

PHYSICAL ENVIRONMENTAL STIMULI AS TRUST PRECONDITIONS, AFFECTIVE MEDIATION, AND UNPLANNED BUYING BEHAVIOR IN SHOPPING MALLS: EVIDENCE FROM A CROSS-BORDER EMERGING MARKET

Unplanned purchasing in brick-and-mortar retail has received sustained theoretical attention under the Stimulus-Organism-Response (S-O-R) framework, yet the vast majority of empirical work concentrates on digital, e-commerce, and livestreaming environments in high-income economie...

PUBLIC EDUCATION POLICY IN COLOMBIA: JURISPRUDENTIAL ANALYSIS

The realization of the right to education is developed through the formation of public education policy, which contributes to the fact that this right transcends from the declarative to the effective. The objective of this article is to analyze the jurisprudential treatment that...

Perceived academic disruption in the event of a future pandemic among Latin American university students: a multicountry cross-sectional study

Abstract Introduction The COVID-19 pandemic substantially disrupted higher education by limiting in-person training and accelerating the transition to virtual learning. During the 2022 mpox outbreak, concerns emerged about the possibility of renewed academic disruption among univ...

Exploratory serum mass spectral fingerprinting and machine learning for case-control classification of preeclampsia

Preeclampsia is a pregnancy-specific hypertensive disorder associated with maternal and perinatal morbidity and mortality and can increase the risk of vascular diseases after pregnancy. However, a timely and unequivocal diagnosis in the first weeks allows access to appropriate me...

Sociodemographic factors associated with anticipatory perceived labor vulnerability related to the Russia–Ukraine war among workers in Latin America

Abstract Introduction The COVID-19 pandemic disrupted labor markets in Latin America, a region characterized by high informality, socioeconomic inequality, and uneven social protection. Shortly afterward, the Russia–Ukraine war generated global uncertainty regarding inflation, co...