Universitat de Barcelona

Bayesian Neural Networks versus deep ensembles for uncertainty quantification in machine learning interatomic potentials

Abstract Neural-network-based machine learning interatomic potentials have emerged as powerful tools for predicting atomic energies and forces, enabling accurate and efficient simulations in atomistic modeling. A key limitation of traditional deep learning approaches, however, is...

Emergency Department-Based Screening and Linkage-to-Care for Hepatitis B, C, and D in a Referral Hospital in Barcelona, Spain: Reduction in Hepatitis C Prevalence After Five Years

Background: Emergency Department (ED) viral hepatitis screening programs typically report short-term outcomes. We evaluated the medium-term impact of an ED-based screening for Hepatitis C (HCV), Hepatitis B (HBV), and Hepatitis D (HDV) viruses. Methods: Prospective opportunistic...

Reduced-frequency bictegravir, emtricitabine, and tenofovir alafenamide in virologically suppressed adults with HIV: a single-centre randomised phase 2 pilot trial in Spain

Background Reduced-frequency oral antiretroviral therapy may lessen treatment burden, but the exposure thresholds required to maintain virological suppression and the role of the HIV reservoir remain undefined. Methods BETAF-RED was a 48-week, single-centre, randomised, open-labe...

Layered Nickel–HHTP Networks for Efficient Chemiresistive Sensing of CH 4 and CO 2

ABSTRACT The synthesis and single‐crystal structural elucidation of Ni‐HHTP are reported for the first time, achieved from crystals of sufficient size for electron diffraction analysis. These studies reveal that the crystal structure of Ni‐HHTP alternates between radical‐rich and...

Ultraslow brain dynamics as neurophysiological markers of information sampling during learning

To learn, we must actively sample information from our environment: selecting, prioritizing, and extracting relevant cues. Here, we investigated whether ultraslow event-related potentials (ERPs) could track information sampling as participants learned new words from sentence cont...

Cell Type‐Specific Extracellular Vesicles in Mouse Brain: Proteomic Signatures Highlight Astrocytic GlialCAM Network and GPCR Enrichment

Extracellular vesicles (EVs) mediate intercellular communication in the central nervous system (CNS) and are emerging as biomarkers of brain health and disease. However, the molecular composition of cell type-specific brain EVs, particularly astrocyte-derived EVs (ADEVs), remains...

Hidden genomic structure and widespread structural polymorphism across environmental gradients in the spiny sea star Marthasterias glacialis

Abstract Genomic regions of reduced recombination can preserve linkage among co-adapted alleles, facilitating local adaptation despite high connectivity. Such regions—often generated by chromosomal inversions—may be especially important in highly dispersive marine taxa yet remain...

Valenced Encounters: Exploring the Affective Component of Implicit Attitudes

Abstract Implicit attitudes typically involve a valence—an affective component that reflects a positive or, more often, negative appraisal of members of socially relevant categories. Surprisingly, however, discussions of implicit attitudes have paid little explicit attention to v...

Mapping autonomy in mental health care: a scoping review protocol

Autonomy is regarded as a fundamental principle in the global reform of mental health care, as promoted by the Convention on the Rights of Persons with Disabilities (CRPD) and reflected in various international initiatives aimed at eliminating coercive practices and fostering rig...

Kinetic Interactions Between the Emerging Pollutant Tungsten(VI), Hydrogen Peroxide, and Biological Amino Acids

ABSTRACT The kinetics of the reduction of tungstate ion by hydrogen peroxide in aqueous media containing phosphate ions, both in the absence and presence of amino acids as oxidizable organic substrates, have been monitored spectrophotometrically at 225–230 nm. Three long‐lived tu...

Beyond the Markovian limit: Exact solutions for active motion in a power-law viscoelastic bath

Active particles from bacteria to synthetic microswimmers often navigate viscoelastic media with complex relaxation dynamics. The classical active Brownian model that assumes instantaneous friction is clearly not applicable to describe such motility, while the non-Markovian proce...

Visually identified breakpoints in muscle oxygen saturation are not equivalent to ventilatory thresholds in national-level triathletes

Abstract Purpose Portable near-infrared spectroscopy (NIRS) enables cost-effective monitoring of muscle oxygen saturation (SmO 2 ) during exercise, presenting a promising alternative for delineating exercise intensity domains. This study investigated whether SmO 2 breakpoints (BP...

Magnetoelectric BaTiO 3 /CoFe 2 O 4 Thin‐Film Meshes for Neuronal Differentiation

ABSTRACT Magnetoelectric composites offer a powerful route for remotely converting magnetic stimuli into local electrical cues, with promising biomedical applications in electrical stimulation. In strain‐mediated magnetoelectric heterostructures, however, efficient coupling depen...

Integrated multiomics analysis reveals metabolic and microbiome alterations in Wilson disease

Wilson disease (WD) is a rare autosomal recessive disorder caused by mutations in ATP7B , which encodes a copper transporter. Abnormal ATP7B function leads to copper deposition, mainly in the liver and brain, resulting in hepatic, neurological, and psychiatric impairments. Metabo...

Atmospheric forcing and ocean preconditioning for dense shelf water cascading in the northwestern Mediterranean

<title>Abstract</title> Dense shelf water cascading (DSWC) in the northwestern Mediterranean Sea occurs due to the densification and overflow of shelf water in winter. This process ventilates the deep basin with waters that can be denser than those generated by open-ocean convect...

Availability and representativeness of freshwater macroinvertebrate data to enable Europe-wide assessment of biodiversity trends

Freshwater ecosystems, though covering less than 1% of Earth's surface, harbor around 10% of all species. Pressures like pollution, water extraction, and habitat loss can exhibit complex interactions in their effects on freshwater biodiversity. Understanding the effects of these...

Measuring masses of transiting Earth-like planets: first insights from the PLATO RV Data Challenge

Abstract The PLATO Stellar Variability Mitigation Working Group designed a radial-velocity (RV) data challenge to assess the precision and accuracy achievable on RV semi-amplitudes in the context of the future PLATO follow-up. Using Sun-as-a-star observations obtained with HARPS-...

Defining global priorities in hematopoietic transplantation and cellular therapy: a statement paper from EBMT Global ComMittee

Abstract Hematopoietic cell transplantation, cellular and gene therapies, and (CAR)-T cells have revolutionized outcomes in hematologic disorders. However, major disparities persist in their availability, accessibility, and affordability, particularly in low- and middle-income co...

Cost-Effectiveness of a Host-Response Point-of-Care Assay for Early Sepsis Diagnosis in UK Emergency Departments

BACKGROUND: Early recognition of sepsis in emergency departments (EDs) improves outcomes and reduces healthcare resource use. However, current clinical practice (CCP), largely based on the National Early Warning Score 2 (NEWS2) and clinical judgement, has limited diagnostic sensi...

Institutional sustainability mediates the effects of university branding on student loyalty

The objective of this study is to analyse the mediating role of perceived institutional sustainability as a mechanism that strengthens the relationships between reputation, brand image and loyalty in higher education institutions. Although the university branding literature has e...