Universidad de Los Andes

Association between plain-water consumption and suicide attempts among U.S. adolescents: Evidence from the 2017–2021 Youth Risk Behavior Survey

Background Adolescent suicide attempts remain difficult to predict, in part because research has concentrated on a narrow set of risk factors. We examined whether self-reported plain-water consumption is associated with past-year suicide attempt among U.S. adolescents, whether th...

Testing rational and behavioral predictions to long-term reversal: industry evidence from Latin America

The rational school predicts that return reversal may be significant in optimistic states but not in pessimistic ones. The behavioral school predicts that reversal may exist in industry segments with greater mispricing potential and more investor biases. We found little support f...

Mitigation of Acrylamide in Panela: Evaluating Storage and Additive-Based Strategies on Physicochemical Properties and Sensory Quality

Abstract Panela, a traditional non-centrifugal cane sugar sweetener, undergoes intensive thermal evaporation promoting acrylamide (AA) formation through Maillard reactions. This study characterized AA formation throughout traditional panela production in Útica, Colombia, and qua...

Brand relationships in conversation: a review of conversational agents using bibliometrics and language models

Purpose This paper aims to synthesise research on conversational agents in the context of brand relationships to map the current state of knowledge, propose an integrative framework and develop a future research agenda. Design/methodology/approach This study analyses 293 publicat...

Authentic Corporate Social Advocacy Across Five National Contexts: The Moderating Roles of Perceived Corporate Value Proximity and Publics’ Value-Driven Action Motivation

This study examines how authentic corporate social advocacy (CSA) influences publics’ supportive communication and consumption intentions across five national contexts and whether these effects depend on two value-based conditions. Organizational legitimacy theory provides the ov...

Mapping the nuclear environments of extreme coronal line emitting galaxies

Abstract Extreme coronal line emitters (ECLEs) are a rare class of galactic nuclei exhibiting unusually strong high-ionisation forbidden emission lines, and several ECLEs have been linked to tidal disruption events (TDEs). In this work, we compile and analyse optical spectra of 3...

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...

Effects of Desert Sands on the Fresh and Hardened Properties of Cement-Based Materials

Abstract The use of desert sands as an alternative to river sand in concrete may be limited by the presence of internally sourced sulfate and chloride ions, which may affect hydration and long-term performance. This study investigates the influence of naturally contaminated deser...

More than Infrastructure: How Institutional Frameworks Shape Socioeconomic Value in Toll Roads

Abstract Toll road projects are employed in developing countries to deliver critical infrastructure, fostering socioeconomic development. However, these initiatives often face community opposition because of misalignment between perceived local needs and promised benefits. This s...