University of Bío-Bío

The greenhushing communication dilemma: Consumer interpretations of promotional skepticism and signal invisibility

The growing concern over greenwashing has led some organizations to deliberately reduce the communication of their sustainability initiatives, a phenomenon known as greenhushing. Although recent research has examined its consumer consequences, less is known about how consumers na...

Topology-Driven Compression and Energy Absorption of PLA-Lattice-Reinforced Mortar

The design of cellular architectures based on topology offers a promising strategy for tailoring the mechanical performance of cementitious composites without altering the matrix composition. However, the influence of the topological transition from re-entrant auxetic structures...

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...

Scale Mixture of Akash Distribution with Applications to Income Data

In this paper, the scale mixture of Akash (SMAK) distribution is introduced. This new distribution results from a scale mixture of the Akash distribution and the exponential distribution. The SMAK distribution is an alternative to two-parameter distributions with a heavy right ta...

Slowly rotating condensate dark stars beyond the mean-field approximation

Abstract We investigate rotational properties and universal relations of slowly rotating Bose–Einstein condensate dark stars in the context of General Relativity, both at the mean-field level and when the leading beyond-mean-field Lee–Huang–Yang correction is retained self-consis...

Gödel-symmetric backgrounds and explicit spacetime symmetry breaking

Abstract Explicit diffeomorphism breaking in gravitational theories with nondynamical background fields is constrained by the compatibility between the modified Einstein equations and the contracted Bianchi identities. We implement an isometry-based approach in which the backgrou...

Predicting Early Dropout in University Entry Cohorts: Temporal Inter-Cohort Validation in a Chilean Public University

Early university dropout remains a major concern for higher education, particularly amid expanded access, diverse student profiles, and institutional efforts to promote persistence. This study evaluates predictive models of early dropout at a Chilean university using ten entry co...