Pontificial Catholic University of Valparaiso

Frost risk, phenology and adaptation in cold-climate viticultural systems

CONTEXT Late spring frost remains a major climatic constraint in cold- and cool-climate viticulture, where grapevine development is strongly shaped by seasonal temperature variability. Although climatic warming is often expected to reduce frost hazard through declining frost freq...

Overweight, Obesity, and Musculoskeletal Symptom Burden in Chile: A Population-Based Cross-Sectional Study

Background/Objectives: Musculoskeletal symptoms (MSS) are among the leading causes of pain and functional limitation worldwide, yet population-level evidence linking excess body weight to MSS in Latin America remains scarce. This study examined the association between body mass i...

Acculturation Processes and Food Neophobia

Food is a pivotal agent in the exchange of culture and the evolution of novel dietary practices, exerting influence on both immigrant communities and the host territories. Nevertheless, the process of acculturation frequently engenders tensions within migrant households, impactin...

Professional Perspectives on Children's Participation in the Chilean Child Protection System

ABSTRACT Meaningful participation in child protection systems is crucial for enhancing both decision‐making processes and the lives of children and adolescents. This study explores professionals' perceptions of child participation and risk assessment within the Chilean Child Prot...

Mapping the Crowdfunding–Entrepreneurship System: A Longitudinal and Structural Bibliometric Analysis

Crowdfunding has become a central mechanism for entrepreneurial finance, yet the evolution and thematic structure of its intersection with entrepreneurship remain insufficiently understood. This study provides an integrated, longitudinal, and structurally grounded bibliometric an...

Cognitive vergence and pupil response during oddball task are associated with Alzheimer´s disease cerebrospinal fluid neurodegenerative biomarkers

Alzheimer’s disease (AD) can be diagnosed using cerebrospinal fluid (CSF) biomarkers reflecting amyloid and tau pathology. However, they provide no information about functional network status. We aimed to determine whether CSF biomarkers (Aβ42, p-Tau, t-Tau, and Aβ42/p-Tau ratio)...

Sociodemographic and Anthropometric Determinants of Body Dissatisfaction in a Sample of Spanish Adolescents: The EHDLA Study

Body dissatisfaction is prevalent among adolescents and linked to adverse outcomes. This study examined sociodemographic and anthropometric factors associated with body dissatisfaction in Spanish adolescents. Cross-sectional data from the Eating Healthy and Daily Life Activities...

Cardiometabolic multimorbidity phenotypes and their associations with functional and cognitive outcomes in older Chilean adults: findings from the Chilean national health survey

Abstract Background Multimorbidity is highly prevalent among older adults and is associated with functional decline, disability, cognitive impairment, and increased healthcare burden. However, traditional disease-count approaches may fail to capture the heterogeneity of multimorb...

Coastal streetlights shape intertidal sessile community abundance and are associated with altered post-disturbance recovery in urban rocky shores

Coastal urban environments concentrate high levels of artificial light at night (ALAN), yet how persistent light pollution interacts with urban habitat conditions to shape intertidal community structure remains poorly understood. Here, we combined field surveys on natural rocky p...

Characterization of the Immune Response of Atlantic Salmon to Tenacibaculum dicentrarchi Using In Vivo and In Vitro Approaches

Tenacibaculosis, primarily caused by Tenacibaculum dicentrarchi in Chile, is now the second leading infectious cause of mortality in Chilean Atlantic salmon (Salmo salar) farming, yet the host immune response remains uncharacterized. Here, we combined in vitro and in vivo approac...

Predicting Spatial Variability of PR Protein Concentration in White Grape Juice Using UAV Multispectral Data and Machine Learning

Background: Pathogenesis-related (PR) proteins, primarily thaumatin-like proteins (TLPs) and chitinases, are the principal cause of protein haze formation in white wines, increasing bentonite requirements and affecting winemaking efficiency. However, evaluating their spatial vari...

Cognitive vergence and pupillary responses as functional oculomotor signatures to differentiate AT(N) biological profiles in older adults with mild cognitive impairment

Abstract The locus coeruleus (LC), the earliest site of tau accumulation in Alzheimer’s disease, directly influences pupillary and vergence oculomotor systems. Whether task-evoked oculomotor dynamics can non-invasively differentiate AT(N) profiles, A+T+ (biological Alzheimer’s di...

Synthesis and In Vivo Antifungal Evaluation of 3-Acyl-bromoindole Regioisomers: A Multi-Targeting Study on Postharvest Pathogen Control and Molecular Dynamics

Background/Objectives: Postharvest fungal decay caused by Botrytis cinerea and Monilinia fructicola poses major threats to global fruit security. Driven by the need for sustainable crop protection agents, this work presents the systematic synthesis, biological evaluation, and com...

Bioinformatic Identification and Experimental Validation of Novel Antioxidant Peptides Derived from Salmon Collagen

The objective of this study was to identify and experimentally validate novel antioxidant peptides derived from salmon collagen through an integrated bioinformatic and experimental workflow. Collagen sequences from Salmo salar were subjected to in silico enzymatic hydrolysis, and...

Bioactive Properties and Pharmaceutical Potential of New World Mistletoes of the Genus Tristerix: A Review

Mistletoes of the genus Tristerix, native to South America, represent a unique group of mostly hemiparasitic plants with potential medicinal applications. This review synthesizes existing knowledge on their biological and phytochemical properties, focusing on three main species e...