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How to develop Municipal Waste Management Ordinances. Good Practices, Proposals, and Recommendations for Local Authorities
Get PDF[Resumen]: Este informe pretende ofrecer recomendaciones y referencias de buenas prácticas aplicables al proceso de elaboración de una ordenanza municipal en materia de gestión de residuos de competencia local, de modo que se adapte plenamente a las exigencias de la Ley 7/2022, de 8 de abril, de residuos y suelos contaminados para una economía circular, y que responda a las nuevas dinámicas de la política y el derecho de la UE sobre economía circular.[Resum]: Aquest informe pretén oferir recomanacions i referències de bones pràctiques aplicables al procés d'elaboració d'una ordenança municipal en matèria de gestió de residus de competència local, de manera que s'adapti plenament a les exigències de la Llei 7/2022, de 8 d'abril, de residus i sòls contaminats per a una economia circular, i que respongui a les noves dinàmiques de la política i el dret de la UE sobre economia circular.[Abstract]: This report aims to provide recommendations and good practice references applicable to the process of drafting a municipal ordinance on waste management under local jurisdiction, so that it is fully adapted to the requirements of Law 7/2022 of 8 April on waste and contaminated soils for a circular economy, and responds to the new dynamics of EU policy and law on the circular economy.Esta investigación se ha desarrollado en el marco del proyecto “Economía circular local (ECIL): políticas públicas, herramientas jurídicas y buenas prácticas en la gestión circular de los residuos municipales" (TED2021‐129734B‐I00.NG.EU BDNS 59843)El presente trabajo de investigación se ha hecho en el marco de investigación posdoctoral financiada por “Programa de axudas á etapa posdoutoral da Xunta de Galicia na convocatoria de diciembre de 2023 (Consellería de Cultura, Educación, Formación Profesional e Universidades)”Xunta de Galicia; ED481B 2023/6
Virtual Assistant for Navigation and Information Extraction from the Faculty’s Website
Get PDF[Abstract]: The search for information is a fundamental part of daily university life and can be timeconsuming in some cases. With the rise in the use of applications that leverage advances in Information Retrieval (IR) and Natural Language Processing (NLP), it is possible to create not only an efficient search system but also a fully interactive one. Large Language Models
(LLMs) have become much more accessible to developers, allowing them to take advantage of text generation functions for various purposes. This work presents a solution to facilitate Information Retrieval within the University of A Coruña’s environment: a Virtual Assistant in the form of a Chatbot that can respond to users, especially students from the Faculty of
Computer Science. The goal is to develop a tool that can be integrated with the faculty’s website, allowing it to access the relevant files and either answer students’ questions or redirect them to the appropriate documents. This approach will enhance the user experience by eliminating the need to search across different platforms and reduce the burden on the faculty’s information services. The final product has been evaluated using different Large Language Models, both to ensure its proper functioning and to conduct a small comparative study to determine the best fit for the system.[Resumo]: A procura de información é unha parte fundamental da vida universitaria diaria e pode levar moito tempo nalgúns casos. Co aumento no uso de aplicacións que aproveitan os avances en Information Retrieval (IR) e Natural Language Processing (NLP), é posible crear non só un sistema de procura eficiente, senón tamén un completamente interactivo. Os Large Language Models (LLMs) fixéronse moito máis accesibles para os desenvolvedores, permitindo que aproveiten as funcións de xeración de texto para varios propósitos. Este traballo presenta unha solución para facilitar a Information Retrieval no entorno da Universidade da Coruña: un Virtual Assistant en forma de Chatbot que pode responder aos usuarios, especialmente aos estudantes da Facultade de Informática. O obxectivo é desenvolver unha ferramenta que poida ser integrada no sitio web da facultade, permitindo que acceda aos arquivos relevantes e que responda ás preguntas dos estudantes ou os redirixa aos documentos axeitados. Este enfoque mellorará a experiencia do usuario ao eliminar a necesidade de buscar en diferentes plataformas e reducirá a carga sobre os servizos de información da facultade. O produto final foi avaliado usando diferentes Large Language Models, tanto para garantir o seu correcto funcionamento como para realizar un pequeno estudo comparativo para determinar a mellor opción para o sistema.Traballo fin de grao (UDC.FIC). Enxeñaría Informática. Curso 2023/202
Impact of competitive games in physical education classes on emotional and psychological well-being
Get PDF[Abstract] The increasing prevalence of problems related to mental health and emotional well-being among children and young people underlines the importance of educational institutions, particularly Physical Education, to foster emotional well-being. Therefore, Physical Education is a suitable educational space for working on emotions. This research aims to investigate whether the introduction of competition in Physical Education games influences the emotional intensity of students. Method: The sample consisted of 46 people aged between 10 and 12 years (M = 10.87; SD = 0.75), of whom 26 were girls (57%) and 20 boys (43%). To carry out the study, the sample was divided into two groups, a control group and an experimental group, with which non-competitive and competitive games were played, respectively, in the area of Physical Education. The instruments used in the research were the GES-C questionnaire and an ad hoc sociodemographic questionnaire created specifically for this study. Results: The research showed that non-competitive games generated greater intensity in any of the 4 positive emotions evaluated, as well as with competitive games in the 5 negative emotions evaluated. In the same line, it was also evidenced that positive emotions are significantly more intense when winning and negative emotions are significantly more intense when losing during the practice of competitive games. Conclusions: Competitive games favor emotional development differently from non-competitive games. Therefore, neither type of game should be eliminated from educational practice. That is why Physical Education teachers must make a selection of the games to be used during their classes, competitive or non-competitive, based on the previously established educational objectives
Rapid and simple morphological assay for determination of susceptibility/resistance to combined ciprofloxacin and ampicillin, independently, in Escherichia coli
Get PDF[Abstract] Current antibiograms cannot discern the particular effect of a specific antibiotic when the bacteria are incubated with a mixture of antibiotics. To prove that this task is achievable, Escherichia coli strains were treated with ciprofloxacin for 45 min, immobilized on a slide and stained with SYBR Gold. In susceptible strains, the nucleoid relative surface started to decrease near the MIC, being progressively condensed as the dose increased. The shrinkage level correlated with the DNA fragmentation degree. Ciprofloxacin-resistant bacilli showed no change. Additionally, E. coli strains were incubated with ampicillin for 45 min and processed similarly. The ampicillin-susceptible strain revealed intercellular DNA fragments that increased with dose, unlike the resistant strain. Co-incubation with both antibiotics revealed that ampicillin did not modify the nucleoid condensation effect of ciprofloxacin, whereas the quinolone partially decreased the background of DNA fragments induced by ampicillin. Sixty clinical isolates, with different combinations of susceptibility-resistance to each antibiotic, were co-incubated with the EUCAST breakpoints of susceptibility of ciprofloxacin and ampicillin. The morphological assay correctly categorized all the strains for each antibiotic in 60 min, demonstrating the feasible independent evaluation of a mixture of quinolone and beta-lactam. The rapid phenotypic assay may shorten the incubation times and necessary microbial mass currently required for evaluation.This work was funded by Project PI20/01263 awarded to J.L.F. within the National Plan for Scientific Research, Development and Technological Innovation 2017–2020 funded by the Instituto de Salud Carlos III (ISCIII)-General Subdirection of Assessment and Promotion of the Research-European Regional Development Fund (FEDER) “A way of making Europe”. This work was also supported by CIBERINFEC (Infectious Diseases Area of the Network Biomedical Research Center of the Carlos III Health Institute). This work was also funded by IMI 6th call COMBACTE New Drugs 4 Bad Bugs (ND4BB).info:eu-repo/granyAgreement/ISCIII/Programa Estatal de Generación de Conocimiento y Fortalecimiento del Sistema Español de I+D+I/PI20%2F01263/ES/DESARROLLO DE UN NUEVO PROCEDIMIENTO SIMPLE Y RAPIDO PARA DETERMINAR LA SENSIBILIDAD/RESISTENCIA BACTERIANA A QUINOLONAS Y SUS COMBINACIONES CON BETA-LACTAMICOS, DE MODO SIMULTÁNEO E INDEPENDIENT
Flow rate influence on sediment depth estimation in sewers using temperature sensors
Get PDFThe data collected in the laboratory-scale experimental campaign is openly accessible in ZENODO and available in these in-text data citation reference: Regueiro-Picallo et al. (2024b), with a license Creative Commons Attribution 4.0 International (CC BY-NC 4.0). https://doi.org/10.5281/zenodo.10821837[Abstract:] Enhancing sediment accumulation monitoring techniques in sewers will enable a better understanding of the build-up processes to develop improved cleaning strategies. Thermal sensors provide a solution to sediment depth estimation by passively monitoring temperature fluctuations in the wastewater and sediment beds, which allows evaluation of the heat-transfer processes in sewer pipes. This study analyses the influence of the flow conditions on heat-transfer processes at the water–sediment interface during dry weather flow conditions. For this purpose, an experimental campaign was performed by establishing different flow, temperature patterns, and sediment depth conditions in an annular flume, which ensured steady flow and room-temperature conditions. Numerical simulations were also performed to assess the impact of flow conditions on the relationships between sediment depth and harmonic parameters derived from wastewater and sediment-bed temperature patterns. Results show that heat transfer between water and sediment occurred instantaneously for velocities greater than 0.1 m/s, and that sediment depth estimations using temperature-based systems were barely sensitive to velocities between 0.1 and 0.4 m/s. A depth estimation accuracy of ±7 mm was achieved. This confirms the ability of using temperature sensors to monitor sediment build-up in sewers under dry weather conditions, without the need for flow monitoring.The experimental campaign was funded by the EU under the Horizon 2020 INFRAIA program (Co-UDlabs project. GA No. 101008626). The work developed by Manuel Regueiro-Picallo was funded within the postdoctoral fellowship programme from the Xunta de Galicia (Consellería de Cultura, Educación e Universidade, ED481B-2021-082).Xunta de Galicia; ED481B-2021-08
Enfermedad arterial coronaria transmitida por el donante en receptores de trasplante cardíaco: prevalencia, factores de riesgo y repercusión pronóstica
Get PDFPrograma Oficial de Doutoramento en Ciencias de la Salud[Resumen]: Introducción: La prevalencia reportada de enfermedad arterial coronaria transmitida por el donante (EACTD) es variable y su impacto pronóstico post-trasplante cardíaco (TC)incierto. Objetivos: Caracterizar la EACTD y su relevancia pronóstica post-TC. Métodos: Estudio multicéntrico de receptores adultos trasplantados de forma consecutiva en 11 centros españoles entre 2008-2018. Se incluyeron TC con coronariografía ≤3meses post-TC. EACTD significativa (EACTDs): estenosis ≥50% en las arterias coronarias. EACTD no significativa (EACTDns): estenosis < 50%. Progresión de enfermedad arterial coronaria (EAC): nueva EAC significativa, o afectación de nuevas coronarias. Las variables clínicas se evaluaron mediante regresión de Cox y riesgos competitivos. Mediana de seguimiento: 6,3 años. Resultados: De 1.918 pacientes evaluados se incluyeron 937. 65 (6,9%) presentaron EACTDs y107 (11,4%) EACTDns. No se demostró una asociación estadísticamente significativa entre EACTDs y mortalidad por cualquier causa (HR: 1,44; IC95%: 0,89-2,35; p=0,141);pero la EACTDs fue predictor independiente de mortalidad cardiovascular (HR: 2,25;IC95%: 1,20-4,19; p=0,011) y del evento combinado muerte cardiovascular/MACE (HR:2,42; IC 95%: 1,52-3,85; p<0,001). La EACTD fue predictor independiente de progresión de EAC.5201. Conclusión: La EACTD no se asoció con mayor mortalidad global post-TC, pero los TC con EACTDs tienen mayor mortalidad cardiovascular y más progresión de EAC.[Resumo]: Introducción:A prevalencia reportada de enfermidade coronaria transitida polo doante (EACTD)é variable e o seu impacto no prognóstico post-transplante cardíaco (TC) incerta. Obxectivos: Caracterización da EACTD e a súa relevancia prognóstica post-TC Métodos: Estudo multicéntrico de receptores adultos transplantados de forma consecutiva en 11 centros españois entre 2008-2018. Incluíronse os TC cunha coronariografía ≤3meses post- TC. EACTS significativa (EACTDs): calquer estenose ≥50% nas arterias coronarias. EACTD non significativa: estenose < 50%. Progresión de enfermidade arterial coronaria (EAC): nova EAC significativa, ou afectación de nuevas coronarias. As variables clínicas avaliáronse mediante regresión de Cox e riscos competitivos. Mediana de seguemento 6,3 anos. Resultados:De 1.918 pacientes avaliados incluíronse 937. 65 (6,9%) presentaron EACTDs e 107(11,4%) EACTDns. Non se demostrou unha asociación estatísticamente significativa entre a EACTDs e a mortalidade por calquer causa (HR: 1,44; IC 95%: 0,89-2,35; p=0,141);pero a EACTDs foi predictor independente da mortalidade cardiovascular (HR: 2,25; IC95%: 1,20-4,19; p=0,011) e do evento combinado muerte cardiovascular/MACE (HR:2,42; IC 95%: 1,52-3,85; p<0,001). A EACTD foi predictor independente de progresión da EAC. Conclusión:A EACTD non se asociou cunha maior mortalidade global post-TC, pero os receptores con EACTDs teñen una maior mortalidade cardiovascular e máis progresión da EAC.[Abstract]: Introduction: Reported prevalence of donor-transmitted coronary artery disease (TCAD) inheart transplant (HT) is variable and its prognostic impact after HT unclear. Objective:To characterize the TCAD and to study its prognostic relevance post-HT. Methods: Multicenter study of consecutive adult recipients who underwent HT in 11 Spanishcenters from 2008-2018. HT with coronariography ≤3 months post-HT were included. Significant TCAD (s-TCAD): any stenosis ≥50% in coronary arteries. Non-significant TCAD(ns-TCAD): stenosis <50%. Coronary artery disease (CAD) progression: new significantCAD or new coronary arteries affected. Clinical outcomes were assessed by means ofCox’s regression and competing risks. Median follow-up: 6.3 years. Results:From 1,918 patients evaluated, 937 underwent coronariography. s-TCAD wasfound in 65 (6.9%) and ns-TCAD in 107 (11.4%). Multivariable Cox’s regression did notshow a statistically significant association between s-TCAD and all-cause mortality (HR1.44, 95%CI 0.89–2.35; p=0.141); however, it was an independent predictor ofcardiovascular mortality (HR 2.25, 95%CI 1.20–4.19; p=0.011) and the combined eventcardiovascular death or MACE (HR 2.42; 95%CI 1.52–3.85; p<0.001). TCAD was anindependent risk factor for CAD progression. Conclusion:TACD has not been associated with an increased all-cause mortality post-HT, however, recipients with s-TCAD have an increased cardiovascular mortality and anincreased risk of CAD progression
Maternity care and infrastructures in Spain during Franco's regime
No full text[Abstract]: Over the last century, Western countries have undergone a process of medicalisation and
hospitalisation of childbirth. This process led to the subordination of midwives to doctors’
authority and made the hospital the main focus of childbirth care, which entailed a break
with the traditional formula. This article analyses the case of Spain, a country of special
interest due to the convergence of three elements: a belated passage of public health
insurance, a shortage of beds for maternity care and the context of a dictatorship where a
woman’s role was almost exclusively that of wife and mother. Under these circumstances,
home childbirth continued well into the 1970s, despite the interests of health
policymakers who defended hospital childbirth despite in a situation of insufficient
infrastructures. Hence, when hospital delivery care finally became predominant in Spain,
the debate about natural childbirth and a rejection of invasive techniques used in hospitals
had already begun in other countries.This work was supported by the European Union, the European Regional Development
Fund (ERDF), and Spain’s Ministry of Science and Innovation -State Research Agencyfor the project entitled “The historical development of private sector hospital companies
in competition and collaboration with the public sector: Spain from an international
perspective (1920-2020)”, ref. PID2021-122699OB-I00info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científicay Técnica y de Innovación 2021-2023/PID2021-122699OB-100/ES/EL DESARROLLO HISTORICO DE LAS EMPRESAS HOSPITALARIAS DEL SECTOR PRIVADO EN COMPETENCIA Y COLABORACION CON EL SECTOR PUBLICO: ESPAÑA EN PERSPECTIVA INTERNACIONAL (1920-2020
Direct Antenna Frequency-Hopped M-FSK Modulation With Time-Modulated Arrays
Get PDFFinanciado para publicación en acceso aberto: Universidade da Coruña/CISUG[Abstract]: We present an innovative approach that simultaneously enables direct antenna frequency-hopped M-ary frequency shift keying (DAFH-MFSK) modulation and beamsteering through the use of time-modulated arrays (TMAs). The distinctive feature of our approach lies in the modulation of the TMA excitations with binary periodic sequences, which can be easily frequency-adjusted and time-delayed to simultaneously allow for DAFH-MFSK direct antenna modulation and beamsteering. Notably, our TMA proposal offers a distinct advantage over conventional architectures in terms of performance metrics, including reduced insertion losses and enhanced phase resolution for beamsteering, while also simplifying hardware complexity.This work was supported in part by Grant ED431C 2020/15 funded by
Xunta de Galicia and ERDF Galicia 2014-2020; in part by Grant PID2022-
137099NB-C42 (MADDIE) and Grant TED2021-130240B-I00 (IVRY) funded
by MCIN/AEI/10.13039/501100011033; in part by the European Union
NextGenerationEU/PRTR; and funding for open access charge: Universidade
da Coruña/CISUG. (Corresponding author: José A. García-Naya.)Xunta de Galicia; ED431C 2020/1
An IoT system for a smart campus: Challenges and solutions illustrated over several real-world use cases
Get PDF[Abstract]: This article discusses the development of an IoT system for monitoring and controlling various devices and systems from different vendors. The authors considered key challenges in IoT projects, such as interoperability and integration, scalability, and data storage, processing, and visualization, during the design and deployment phases. In addition to these general challenges, the authors also delve into the specific integration challenges they encountered. Various devices and systems were integrated into the system and five real-world scenarios in a university campus environment are used to illustrate the challenges encountered. The scenarios involve monitoring various aspects of a university campus environment, including air quality, environmental parameters, energy efficiency, solar photovoltaic energy, and energy consumption. The authors analyzed data and CPU usage to ensure that the system could handle the large amount of data generated by the devices. The platform developed uses open source projects such as Home Assistant, InfluxDB, Grafana, and Node-RED. All developments have been published as open source in public repositories. In conclusion, this work highlights the potential and feasibility of IoT systems in various real-world applications, the importance of considering key challenges in IoT projects during the design and deployment phases, and the specific integration challenges that may be encountered.This work was supported in part by grants PID2022-137099NB-C42 (MADDIE) and TED2021-130240B-I00 (IVRY) funded by MCIN/AEI/10.13039/501100011033; and in part by the European Union NextGenerationEU/PRTR. Funding for open access charge: Universidade da Coruña/CISUG.Financiado para publicación en acceso aberto: Universidade da Coruña/CISU
Graphs with isolation number equal to one third of the order
No full text© 2024. This manuscript version is made available under the CC-BY-NC-ND 4.0 license https://creativecommons.org/licenses/by-nc-nd/4.0/. This version of the article has been accepted for publication in Discrete Mathematics (ISSN 2578-9252). The Version of Record is available online at 10.1016/j.disc.2024.113903.[Absctract]: A set D of vertices of a graph G is isolating if the set of vertices not in D and with no
neighbor in D is independent. The isolation number of G, denoted by ι(G), is the minimum
cardinality of an isolating set of G. It is known that ι(G) ≤ n/3, if G is a connected graph
of order n, n ≥ 3, distinct from C5. The main result of this work is the characterisation of
unicyclic and block graphs of order n with isolating number equal to n/3. Moreover, we
provide a family of general graphs attaining this upper bound on the isolation number.Partially supported by projects PID2019-104129GB-I00/MCIN/AEI/10.13039/501100011033 of the Spanish Ministry of Science and Innovation and Gen.Cat. DGR2021SGR00266.
Partially supported by project PID2020-113230RB-C21 of the Spanish Ministry of Science and Innovation