99 results match your criteria: "Universitat Politecnica de Catalunya-BarcelonaTech UPC[Affiliation]"

Imputing Missing Data in Hourly Traffic Counts.

Sensors (Basel)

December 2022

Centre Internacional de Mètodes Numèrics en Enginyeria (CIMNE), Universitat Politècnica de Catalunya BarcelonaTech (UPC), 08034 Barcelona, Spain.

Hourly traffic volumes, collected by automatic traffic recorders (ATRs), are of paramount importance since they are used to calculate average annual daily traffic (AADT) and design hourly volume (DHV). Hence, it is necessary to ensure the quality of the collected data. Unfortunately, ATRs malfunction occasionally, resulting in missing data, as well as unreliable counts.

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Background: PERTINENT is an active hospital-based surveillance system for pertussis in infants. In 2019, four of the six participating European countries recommended pertussis vaccination in pregnancy. Among infants aged <2 months, we measured the vaccine effectiveness (VE) in pregnancy; among infants aged 2-11 months, VE of vaccination in pregnancy and of primary vaccination (PV).

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Nanofluid Formulations Based on Two-Dimensional Nanoparticles, Their Performance, and Potential Application as Water-Based Drilling Fluids.

ACS Omega

June 2022

Tissue Regeneration and Repair Group: Orthobiology, Biomaterials and Tissue Engineering, UCAM-Universidad Católica de Murcia, Campus de los Jerónimos 135, Guadalupe, 30107 Murcia, Spain.

The development of sustainable, cost-efficient, and high-performance nanofluids is one of the current research topics within drilling applications. The inclusion of tailorable nanoparticles offers the possibility of formulating water-based fluids with enhanced properties, providing unprecedented opportunities in the energy, oil, gas, water, or infrastructure industries. In this work, the most recent and relevant findings related with the development of customizable nanofluids are discussed, focusing on those based on the incorporation of 2D (two-dimensional) nanoparticles and environmentally friendly precursors.

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Background And Objective: The effect of chronic pulmonary regurgitation (PR) on right ventricular (RV) dysfunction in repaired Tetralogy of Fallot (RTOF) patients is well recognized by cardiac magnetic resonance (CMR). However, the link between RV wall motion, intracardiac flow and PR has not been established. Hemodynamic force (HDF) represents the global force exchanged between intracardiac blood volume and endocardium, measurable by 4D flow or by a novel mathematical model of wall motion.

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Predicting 6-minute walking test outcomes in patients with chronic obstructive pulmonary disease without physical performance measures.

Comput Methods Programs Biomed

October 2022

Universitat Politecnica de Catalunya · BarcelonaTech (UPC), Barcelona 08019, Spain; Institute for Bioengineering of Catalonia (IBEC-BIST), Barcelona 08019, Spain; Biomedical Research Networking Center of Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Madrid 28029, Spain.

Background And Objective: Chronic obstructive pulmonary disease (COPD) requires a multifactorial assessment, evaluating the airflow limitation and symptoms of the patients. The 6-min walk test (6MWT) is commonly used to evaluate the functional exercise capacity in these patients. This study aims to propose a novel predictive model of the major 6MWT outcomes for COPD assessment, without physical performance measurements.

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Psychosocial and biological predictors of resident physician burnout.

Gen Hosp Psychiatry

September 2022

Department of Medicine, Psychiatry Functional Unit, Institute of Neuroscience, University of Barcelona (UB), Barcelona, Spain.; Department of Psychiatry and Psychology, Hospital Clinic, UB, Institut d' Investigació, Biomèdica August Pi i Sunyer (IDIBAPS), CIBERSAM, Barcelona, Spain. Electronic address:

Background: A high proportion of health professionals in training suffer from work-related stress and may develop a burnout syndrome.

Objectives: To study the incidence of burnout after the first year of residency in a teaching hospital and to identify baseline psychological, psychosocial work conditions, and biological risk factors.

Methodology: We assessed the following in a prospective cohort of residents at baseline (first month residence) and after 1 year: background factors (socio-demographics, psychiatric history), perceived stress score (Perceived Stress Scale), Maslach Burnout Inventory score, and psychosocial factors (Job Content Questionnaire).

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Males and females with first episode psychosis present distinct profiles of social cognition and metacognition.

Eur Arch Psychiatry Clin Neurosci

October 2022

Parc Sanitari Sant Joan de Déu, Sant Boi de Llobregats, Dr. Pujades 42. Sant Boi de Llobregat 08830, Barcelona, Spain.

Deficits in social cognition and metacognition impact the course of psychosis. Sex differences in social cognition and metacognition could explain heterogeneity in psychosis. 174 (58 females) patients with first-episode psychosis completed a clinical, neuropsychological, social cognitive, and metacognitive assessment.

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We report a new learning approach in science and technology through the Qui-Bot HO project: a multidisciplinary and interdisciplinary project developed with the main objective of inclusively increasing interest in computer science engineering among children and young people, breaking stereotypes and invisible social and gender barriers. The project highlights the social aspect of robotics applied to chemistry, at early ages. We successfully tested the project activities on girls between 3 to 13 years old.

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Power assisted MFC-based biosensor for continuous assessment of microbial activity and biomass in freshwater ecosystems.

Sci Total Environ

August 2022

GEMMA - Environmental Engineering and Microbiology Research Group, Department of Civil and Environmental Engineering, Universitat Politècnica de Catalunya·BarcelonaTech (UPC), c/ Jordi Girona 1-3, Building D1, 08034 Barcelona, Spain. Electronic address:

Microbial activity and biomass are important factors that determine nutrient and carbon fluxes in freshwater ecosystems and, therefore are also related to both water quality and climate change induced stressors. This study aimed at assessing the feasibility of a power assisted Microbial Fuel Cell (MFC)-based biosensors for the continuous monitoring of microbial activity and biomass concentrations in saturated freshwater ecosystems. For this purpose, four lab-scale reactors were constructed and operated for 30 weeks.

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Investigating the Impact of Information Sharing in Human Activity Recognition.

Sensors (Basel)

March 2022

Centre Internacional de Mètodes Numèrics en Enginyeria (CIMNE), Universitat Politècnica de Catalunya BarcelonaTech (UPC), 08034 Barcelona, Spain.

The accuracy of Human Activity Recognition is noticeably affected by the orientation of smartphones during data collection. This study utilized a public domain dataset that was specifically collected to include variations in smartphone positioning. Although the dataset contained records from various sensors, only accelerometer data were used in this study; thus, the developed methodology would preserve smartphone battery and incur low computation costs.

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Spatially-structured human mortality modelling using air pollutants with a compositional approach.

Sci Total Environ

March 2022

Research group on Engineering Sciences and Global Development (EScGD), Civil and Environmental Engineering Department, Universitat Politècnica de Catalunya - BarcelonaTech (UPC), Spain. Electronic address:

The human mortality models with a demographic approach are performed in function of time. The addition of information (social, economic, and environmental) in the structure of demographic models allows fitting observed values better. Air pollution influences human mortality and could be used as an environmental covariate in the demographic models.

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Attempts to quantify effect sizes of non-pharmaceutical interventions (NPI) to control COVID-19 in the US have not accounted for heterogeneity in social or environmental factors that may influence NPI effectiveness. This study quantifies national and sub-national effect sizes of NPIs during the early months of the pandemic in the US. Daily county-level COVID-19 cases and deaths during the first wave (January 2020 through phased removal of interventions) were obtained.

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Persons with first episode psychosis have distinct profiles of social cognition and metacognition.

NPJ Schizophr

December 2021

Parc Sanitari Sant Joan de Déu, Sant Boi de Llobregat (Barcelona), Barcelona, Spain.

Subjects with first-episode psychosis experience substantial deficits in social cognition and metacognition. Although previous studies have investigated the role of profiles of individuals in social cognition and metacognition in chronic schizophrenia, profiling subjects with first-episode psychosis in both domains remains to be investigated. We used latent profile analysis to derive profiles of the abilities in 174 persons with first-episode psychosis using the Beck's Cognitive Insight Scale, the Faces Test, the Hinting Task, the Internal, Personal and Situational Attributions Questionnaire, and the Beads Task.

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Mental health benefits of a 1-week intensive multimodal group program for adolescents with multiple adverse childhood experiences.

Child Abuse Negl

December 2021

Center for Healthy Minds, University of Wisconsin-Madison, 625 W. Washington Ave., Madison, WI 53703, United States of America; Universitat Oberta de Catalonia (UOC), Rambla del Poblenou, 156, 08018 Barcelona, Spain. Electronic address:

Background: Adverse childhood experiences (ACEs) are associated with a wide range of diseases, unsafe behavior and shorter life expectancy. However, there is scarce evidence on effective interventions for children or adolescents who report multiple ACEs, including abuse, neglect and household dysfunction.

Objective: The aim of this study was to evaluate the mental health outcomes of a multimodal program designed for adolescents with multiple ACEs.

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Benefits and risks of agricultural reuse of digestates from plastic tubular digesters in Colombia.

Waste Manag

November 2021

GEMMA - Group of Environmental Engineering and Microbiology, Department of Civil and Environmental Engineering, Universitat Politècnica de Catalunya·BarcelonaTech (UPC), c/ Jordi Girona, 1-3, Building D1, E-08034 Barcelona, Spain.

The aim of this study is to characterize the digestates from three plastic tubular digesters implemented in Colombia fed with: i) cattle manure; ii) cattle manure mixed with cheese whey; iii) pig manure. All the digesters worked under psychrophilic conditions. Physico-chemical characteristics, heavy metals, pathogens, and agronomic quality were investigated.

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Lessons from the COVID-19 air pollution decrease in Spain: Now what?

Sci Total Environ

July 2021

D.G. Calidad y Evaluación Ambiental del Ministerio de Transición Ecológica y Reto Demográfico, Madrid 28071, Spain.

We offer an overview of the COVID-19 -driven air quality changes across 11 metropolises in Spain with the focus on lessons learned on how continuing abating pollution. Traffic flow decreased by up to 80% during the lockdown and remained relatively low during the full relaxation (June and July). After the lockdown a significant shift from public transport to private vehicles (+21% in Barcelona) persisted due to the pervasive fear that using public transport might increase the risk of SARS-CoV-2 infection, which need to be reverted as soon as possible.

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Determination of the Operational Parameters for the Manufacturing of Spherical PVP Particles via Electrospray.

Polymers (Basel)

February 2021

Escola Tècnica Superior d'Enginyers de Camins, Canals i Ports, C/Jordi Girona 1, Campus Nord UPC, Universitat Politècnica de Catalunya-BarcelonaTech (UPC), 08034 Barcelona, Spain.

This work aims at bridging experimental and numerical approaches to determine the optimal operating parameters for the fabrication of well-shaped polyvinylpyrrolidone (PVP) particles via electrohydrodynamic atomization. Particular emphasis is given to the role of the PVP solution viscosity. Solutions of PVP at various concentrations dissolved in Dimethylformamide (DMF) were prepared and analyzed.

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Influence of atmospheric parameters on human mortality data at different geographical levels.

Sci Total Environ

March 2021

Research group on Engineering Sciences and Global Development (EScGD), Civil and Environmental Engineering Department, Universitat Politècnica de Catalunya - BarcelonaTech (UPC), Spain. Electronic address:

Human mortality data are often modeled using a demographic approach as a function of time. This approach does not present an adequate fit model for the number of deaths with great variability. For this reason, additional information (social, economic and environmental) is required for complementing and improving demographic modelling.

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Spatio-temporal air pollution modelling using a compositional approach.

Heliyon

September 2020

Research Group on Engineering Sciences and Global Development (EScGD), Civil and Environmental Engineering Department, Universitat Politècnica de Catalunya - BarcelonaTech (UPC), Spain.

Air pollutant data are compositional in character because they describe quantitatively the parts of a whole (atmospheric composition). However, it is common to use air pollutant concentrations in statistical models without considering this characteristic of the data and, therefore, without control of common statistical problems, such as spurious correlations and subcompositional incoherence. This paper now proposes a daily multivariate spatio-temporal model with a compositional approach.

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Data-driven Bayesian network modelling to explore the relationships between SDG 6 and the 2030 Agenda.

Sci Total Environ

March 2020

Engineering Sciences and Global Development (EScGD), Department of Civil and Environmental Engineering, Universitat Politècnica de Catalunya · BarcelonaTech (UPC), Jordi Girona, 1-3, 08034 Barcelona, Spain. Electronic address:

The Sustainable Development Goals (SDGs) are presented as integrated and indivisible. Therefore, for monitoring purposes, conventional indicator-based frameworks need to be combined with approaches that capture and describe the links and interdependencies between the Goals and their targets. In this study, we propose a data-driven Bayesian network (BN) approach to identify and interpret SDGs interlinkages.

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Bioimpedance has been widely studied as alternative to respiratory monitoring methods because of its linear relationship with respiratory volume during normal breathing. However, other body tissues and fluids contribute to the bioimpedance measurement. The objective of this study is to investigate the relevance of chest movement in thoracic bioimpedance contributions to evaluate the applicability of bioimpedance for respiratory monitoring.

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Engineered Macroscale Cardiac Constructs Elicit Human Myocardial Tissue-like Functionality.

Stem Cell Reports

July 2019

Center of Regenerative Medicine in Barcelona (CMRB), L'Hospitalet de Llobregat, Barcelona, Spain; Center for Networked Biomedical Research on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Barcelona, Spain; Institució Catalana de Recerca i Estudis Avançats (ICREA), Barcelona, Spain. Electronic address:

In vitro surrogate models of human cardiac tissue hold great promise in disease modeling, cardiotoxicity testing, and future applications in regenerative medicine. However, the generation of engineered human cardiac constructs with tissue-like functionality is currently thwarted by difficulties in achieving efficient maturation at the cellular and/or tissular level. Here, we report on the design and implementation of a platform for the production of engineered cardiac macrotissues from human pluripotent stem cells (PSCs), which we term "CardioSlice.

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Bayesian network modelling of hierarchical composite indicators.

Sci Total Environ

June 2019

Engineering Sciences and Global Development (EScGD), Department of Civil and Environmental Engineering, Universitat Politècnica de Catalunya · BarcelonaTech (UPC), Jordi Girona, 1-3, 08034 Barcelona, Spain. Electronic address:

The water, sanitation and hygiene (WaSH) sector has witnessed the development of multiple tools for multidimensional monitoring. Hierarchical and composite indicator (CI)-based conceptual frameworks provide one illustrative example. However, this approach does not address the existing interrelationship of the indicators they comprise.

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The Global Navigation Satellite Systems Reflectometry (GNSS-R) Microwave Interferometric Reflectometer: Hardware, Calibration, and Validation Experiments.

Sensors (Basel)

February 2019

Remote Sensing Lab (RSLab), Department of Signal Theory and Communications (TSC), Universitat Politècnica de Catalunya-BarcelonaTech (UPC), Jordi Girona 1-3, Campus Nord, D4 Building, 08034 Barcelona, Spain.

This manuscript describes the Microwave Interferometric Reflectometer (MIR) instrument, a multi-beam dual-band GNSS-Reflectometer with beam-steering capabilities built to assess the performance of a PAssive Reflectrometry and Interferometry System-In Orbit Demonstrator (PARIS-IoD) like instrument and to compare the performance of different GNSS-R techniques and signals. The instrument is capable of tracking up to 4 different GNSS satellites, two at L1/E1 band, and two at L5/E5 band. The calibration procedure of the up- and down-looking arrays is presented, the calibration performance is evaluated, and the results of the validation experiments carried out before the field experiments are shown in this paper.

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