25949 research outputs found
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Modelos concretos en educación infantil: primeros pasos para avanzar hacia la modelización matemática = Concrete models in early childhood education: first steps towards mathematical modelling
No full textThe characteristics of the models that 5-6 year old children create during a mathematical modelling process are analysed in order to find creative and effective solutions to real problems. To this end, a mathematical modelling activity has been implemented based on the phases of comprehension, structuring, mathematization, mathematical work, interpretation, validation and exhibition/presentation. To identify how they construct the first models, we used the early childhood education indicators of the Rubric for Evaluating Mathematical Modelling Processes (REMMP) instrument that are most directly related to the creation of models (end of the mathematical work phase onwards). The main findings show that, with a teaching aid based on knowledge of early mathematical modelling (MMT), children are able to work mathematically, interpret, validate and present concrete models with the following characteristics: on the one hand, they rely on diagrammatic and narrative arguments; on the other hand, they rely on concrete, pictorial and symbolic representations. It is concluded that it is necessary to continue investigating the professional development of teachers so that they can progressively incorporate the professional competences required to design, implement and evaluate EMM practices in early childhood educationSe analizan las características de los modelos que crean niños de 5-6 años durante un proceso de modelización matemática, para encontrar soluciones creativas y eficaces a problemas reales. Para ello, se ha implementado una actividad de modelización matemática a partir de las fases de comprensión, estructuración, matematización, trabajo matemático, interpretación, validación y exposición/presentación. Para identificar cómo construyen los primeros modelos, se han utilizado los indicadores de educación infantil del instrumento Rubric for Evaluating Mathematical Modelling Processes (REMMP) que están más directamente relacionados con la creación de modelos (final de la fase de trabajo matemático en adelante). Los principales resultados muestran que, con una ayuda docente fundamentada en conocimientos sobre modelización matemática temprana (MMT), los niños son capaces de trabajar matemáticamente, interpretar, validar y presentar modelos concretos que reúnen las siguientes características: por un lado, se apoyan en argumentos diagramáticos y narrativos; y, por otro lado, en representaciones concretas, pictóricas y simbólicas. Se concluye que es necesario seguir investigando en torno al desarrollo profesional del profesorado para que, progresivamente, incorpore las competencias profesionales imprescindibles para diseñar, implementar y evaluar prácticas de MMT en educación infanti
Geomorphological Analysis of the Coast of the Collet Roman Maritime Villa and its Collet Est Pottery Workshop (Calonge i Sant Antoni, Catalonia)
No full textThe aim of this article is to define the geomorphological characteristics of the eastern end of the Palamós Bay during the Roman period, in order to understand the relationship between human occupation and the surrounding territory. Geological methods are used in the study, which also uses archaeological data. This comes from the excavation of the Collet Roman villa and the Collet Est pottery workshop. The geological data were obtained from both intensive and extensive fieldwork carried out in the vicinity of the pottery workshop, located to the east of the Roman villa. This work consisted of the study of the stratigraphic sequence of fill of the present-day alluvial plain. As a result of this research, it was found that this plain is the result of the contributions (through a progradation system) from the Aubí stream, and other secondary streams, which filled an ancient marshland that was partially open to the sea. This provided to the local inhabitants an inland lagoon protected from the sea currents and winds. So, it was ideal for the arrival of ships and their loading and unloading. It also provided the inhabitants of the Roman villa and its pottery workshop a reserve of fishing resourcesOpen Access funding provided thanks to the CRUE-CSIC agreement with Springer Natur
Drivers of Tipping Behaviour in Restaurants: The Case of Croatia
No full textTipping in the hospitality industry is a widespread but under-researched phenomenon, particularly in regions where cultural, economic, and social dynamics diverge from established norms. This study explores the critical role of consumer-perceived value in shaping tipping behaviour in the restaurant industry, specifically focusing on Croatia - a context where unique cultural, economic, and social dynamics influence tipping practices. Analysing data from 438 Croatian residents, the study reveals how service dimensions - such as food quality, ambiance, service convenience, and server quality - intersect with demographic characteristics and payment methods to influence tipping practices and WoM recommendations. The research situates Croatia's tipping practices within the broader framework of tourism innovation, emphasizing the interplay of legislative reforms (such as the introduction of card-based tipping), operational advancements (such as the integration of digital payment systems), and evolving cultural norms. These innovations enhance the dining experience for both locals and international tourists, aligning local hospitality practices with global standards. The findings underscore how transitional economies can leverage these combined innovations to strengthen their competitiveness in the global tourism market while fostering positive tourist perception
AI/ML for cybersecurity and robustness in optical networks: Key opportunities and challenges
No full textThe rapid evolution of optical networks has introduced new challenges in cybersecurity and network robustness, necessitating innovative solutions to ensure reliable and secure communication. This paper explores the opportunities and challenges of applying Artificial Intelligence (AI) and Machine Learning (ML) techniques to enhance the security and resilience of optical networks. We present a comprehensive survey of current AI/ML applications in optical networks, focusing on anomaly detection, threat mitigation, and adaptive resource management. By highlighting current limitations and proposing future research directions, this paper aims to provide a roadmap for enhancing AI/ML-driven methods to build secure, robust, and efficient optical network
Head-to-Tail Selective [2 + 2 + 2] Cycloadditions of Bisallenes Enabled by Ligand-Free Nickel(0)
No full textA ligand-free Ni(0) catalyst enables highly chemo- and regioselective [2 + 2 + 2] cycloadditions between 1,5-bisallenes and acetylenes, affording 6,6-fused hexahydroisoquinoline frameworks under mild conditions. DFT studies reveal that head-to-tail selectivity arises from competing oxidative cyclization pathways with metallacycle geometry dictating product formation. This work highlights how simple nickel complexes can achieve precise molecular construction without the need for ancillary ligandsWe are grateful for the financial support from the Spanish Ministerio de Ciencia, Innovación y Universidades (Projects PID2023-146849NB-I00/MICIU/AEI/10.13039/ 501100011033/FEDER, UE, RED2022-134939-T, PID-2021-127423NB-I00, predoctoral FPU20/00707 grant to R.M.-C.,
and Margarita Salas Grant (NextGenerationEU) to S.C.D.K.),a Beatriu de Pinós−AGAUR Postdoctoral Grant (2022 BP00051) to A.S., and the Generalitat de Catalunya (Project 2021-SGR-623). M.M. thanks the Ministerio de Ciencia, Innovación y Universidades for her fellowship (PID2021 127423NB-I00)Open Access funding provided thanks to the CRUE-CSIC agreement with American Chemical Society (ACS
Exploring the Impact of Topological Variations on the Stability of the Ground Singlet and Lowest-Lying Triplet States of Catacondensed Hexabenzenoids
No full textPolycyclic aromatic hydrocarbons (PAH) such as tetracenes, pentacenes, hexacenes, and some higher acenes play a central role in organic electronics due to their unique electronic properties. The impact of topological variations on the relative stability of PAH isomers in different electronic states is poorly understood, with limited insights into how Clar π-sextets and topological features such as bay, cove, fjord, and K-regions influence stability in their ground singlet (S0) and lowest-lying triplet (T1) states. In this work, density functional theory calculations of the S0 and T1 states of the 37 catacondensed hexabenzenoids are performed. A multivariate linear regression model with relative energy as the dependent variable and a series of topological parameters as the independent variables is used to quantify the effect of topology in the relative stability of the catacondensed hexabenzenoids. Analysis shows that, in S0, stability is enhanced by an increase in the number of Clar π-sextets and K-regions and decreased by the presence of coves and fjords. In T1, the main stabilizing factors are the number of Clar π-sextets and the number of rings involved in the antiaromatic region, whereas topological regions such as K-edges, bays, coves, or fjords are destabilizingResearch funding: Agencia Estatal de Investigación. Grant Numbers: PID2023-147424NB-I00, PID2023-146849NB-I00, RED2022-134939-T; Generalitat de Catalunya. Grant Numbers: 2021SGR623, ICREA-Academia-2024; Universitat de Girona. Grant Number: IFUdG2023/64 & European Union. Grant Number: H2020-MSCA-2022-PF-101106492Open Access funding provided thanks to the CRUE-CSIC agreement with Wile
Pla d'acció per a la reforma de l'avaluació de la recerca a la Universitat de Girona (UdG) en el marc de la coalició per a l'avanç de l'avaluació de la recerca (CoARA) = Action Plan for the Reform of Research Evaluation at the Universitat de Girona (UdG) Within the Framework of the Coalition for the Advancement of Research Evaluation (CoARA)
No full textAquest document descriu el pla d'acció estratègic de la Universitat de Girona (2025-2027) per reformar l'avaluació de la recerca d'acord amb els principis de la Coalició per a l'Avanç de l'Avaluació de la Recerca (CoARA). Emfatitza l'avaluació qualitativa, l'ús responsable de les mètriques i el reconeixement de la diversitat de resultats i trajectòries de recerca. El pla integra la ciència oberta, la igualtat de gènere, la sostenibilitat i els estàndards ètics en les pràctiques d'avaluació. Les accions clau inclouen la revisió dels criteris d'avaluació interna, la formació de les parts interessades, la promoció de les dades i el programari FAIR i la participació en xarxes nacionals i internacionals. La iniciativa reflecteix el compromís de la UdG de fomentar una cultura de recerca justa, inclusiva i amb impacte socialThis document outlines the University of Girona's strategic action plan (2025–2027) to reform research evaluation in alignment with the principles of the Coalition for the Advancement of Research Evaluation (CoARA). It emphasizes qualitative assessment, responsible use of metrics, and recognition of diverse research outputs and trajectories. The plan integrates open science, gender equality, sustainability, and ethical standards into evaluation practices. Key actions include revising internal evaluation criteria, training stakeholders, promoting FAIR data and software, and participating in national and international networks. The initiative reflects UdG’s commitment to fostering a fair, inclusive, and socially impactful research culture
Expressing (outweighed) reasons: a challenge for expressivism
No full textExpressivists aim to account for our ordinary discourse about moral reasons, which involves the distinction between merely having a pro tanto reason to do something and having all-things-considered reasons for or against it. However, they typically hold that reasons-talk lacks cognitive content and instead functions to express non-cognitive commendations of ‘doing something’ with our reasons—whether that means acting in accordance with them, being inclined to do so, or merely entertaining them. My main contention is that this is implausible, since we don’t typically approve of being moved, to any significant extent, by outweighed normative reasons. Those are situations where a subject believes that there is pro tanto reason for ϕ-ing while simultaneously believing that, overall, ϕ-ing ought not to be pursued. To demonstrate this, I apply the argument, in turn, to the accounts of Simon Blackburn, Neil Sinclair, and the Preferentialist framework outlined by David Sobel and Daan Evers. I ultimately conclude that contemporary expressivist proposals fall short of accommodating our moral reasons-talkThis work was supported by an FI grant from the Government of Catalonia (2024 FI-B 00215), awarded by the Department de Recerca i Universitats.
Open Access funding provided thanks to the CRUE-CSIC agreement with Springer Natur
An Evaluation of Co-CreasKnow, A Knowledge Management System for the Co-Creation of Educational Material, Applied to High Abilities Secondary Students
No full textThis article presents an evaluation model of Co-CreasKnow, a Knowledge Management System (KMS) designed to assist students to co-create educational material with teachers and family members using CocreHAs. Co-CreasKnow KMS keeps the knowledge generated in the process of co-creating educational material from being lost and allows it to be reused in subsequent co-creation processes. The proposed evaluation model uses a model for evaluating the technology acceptance of the Co-CreasKnow KMS and a model for assessing the KM maturity status in the co-creation process. A longitudinal evolutionary study was conducted in combination with Design-Based Research (DBR), examining the Co-CreasKnow KMS’s development across multiple iterations through the implementation of three co-creation experiments. These experiments used purposive sampling to work with small samples, which had been designed jointly by secondary students diagnosed with high abilities (HA) and their teachers and family members. The first models how users come to accept and use a technology. In the evaluation of the technology acceptance, the hypotheses associating ‘user satisfaction’ with both ‘perceived information quality’ and ‘perceived usefulness’ have been fulfilled. The Knowledge Management (KM) maturity status refers to the level of development and effectiveness it achieves. It is assessed using the General Knowledge Management Maturity Model (G-KMMM) for its ability to provide a comprehensive and structured evaluation of KM maturity status of different areas in the KM process. In relation to perceived KM maturity status, Level 2 (Awareness) was reached for people, Level 3 (Defined) for processes and Level 4 (Managed/Established) for technologyOpen Access funding provided thanks to the CRUE-CSIC agreement with Springer Nature
Cheese experiences across cultures
No full textThis book is not about bread – or, in a way, it is. It is about bread and about other products that shape the stories of cheese. They pair with cheese, they flavour cheese or they are accompanied by cheese. Rye bread is one of the secrets behind the production of Roquefort cheese. It is in this bread that the Penicillium Roqueforti mold grows, giving the cheese its unique colour and flavour. Rye bread transforms the cheese into Roquefort. Cheeses are dynamic by nature, through their making process and the people who make them possible. Cheeses reflect the landscapes they come from – from alpine pastures to coastal caves, from desert caravans to urban cellars. Cheeses are nomadic travelers. They cross borders. They connect generations. Each cheese carries within it a dialogue: between farmers and land, makers and tradition, eaters and culture. As a source of change, cheeses also bring people together. Cheeses invite conversation, encourage curiosity and challenge our senses. As this book aims to, cheeses become a shared language through personal narratives. Each cheese story is a reminder that identity is not static. It adapts, learns and reinvents itself with every encounter, with every cheese and, even, with the same cheese but in a different moment or from a different perspective. Cheese is a powerful agent of intercultural dialogue.
This book, Cheese Experiences Across Cultures, features 120 contributions from 127 experts with diverse academic and professional backgrounds in tourism. Each contribution includes two facing pages, with an image on the left-hand page and a text on the right, to tell cheese experiences from different cultural and territorial contexts. These experiences are based on cheese as a product, spaces of production, landscapes, places of consumption, markets, and other forms of experiences which happen in diverse places. As readers, you will travel through home kitchens, mountains or prisons, and you will engage in discussions about climate change, ethics or migration.
With contributors from 45 countries in North America, South America, Europe, Central Asia, East Asia, Middle East, Africa and Oceania, the book aims to offer a global and plural perspective on cheese, not only as a food product but as a key element in shaping the cultural identity of different individuals and societies, and the relationship between culture, nature and tourism through gastronomy. Cheese Experiences Across Cultures provides a perspective on cheese as an element that highlights territorial resources (both physical and human environments) and contributes to cultural exchange. This ethnographic and experiential perspective offers a broader understanding of how cheese acts as a vehicle for the exchange of knowledge, facilitating learning and interconnection between people and societies. The book also co-creates awareness of the role of cheese in the sustainable development of primary sector activities and their relationship with tourism, as well as the value of cultural and natural heritages and local traditions.
We invite you to enjoy this collective project Cheese Experiences Across Cultures, a free, open-access digital book promoted by the Social Council of the University of Girona on the occasion of Catalonia’s designation as the World Region of Gastronomy 2025With the support of: Universitat de Girona, Departament d’Empresa. Universitat de Girona, Consell Social. Diputació de Giron