bluuebunny/crossref_metadata_2025 huggingface dataset:
Supramolecular hydration structure of graphene-based hydrogels: density functional theory, green chemistry and interface application
Authors: Le Hon Nhien , Nguyen Duy Khanh , Dang Minh Triet , Nguyen Huyen Trinh , Dao Thi Bang Tam , Nguyen Trung Do , Ha Thuc Chi Nhan , Le Van Hieu
Published: January 2025

Natural hydration shells are discovered to play an essential role in the structure and function of biomolecules (deoxyribonucleic acid, protein and phospholipid membrane). Hydration layers are also important to the structure and property of artificial graphene-based materials. Our recent researches prove that graphene-based hydrogels are supramolecular hydration structures that preserve graphene nanosheets from irreversible stacking via van der Waals forces and π-π interactions. In this manuscript, density functional theory (DFT) and high performance computing (HPC) are used for modeling and calculating van der Waals force between graphene nanosheets in water-intercalated AB bilayer graphene structures. A layer of water molecules significantly decreases the intersheet van der Waals force. Experimentally, a novel hydrogel of graphene oxide – silica gel – zinc hydroxide (GO-SG-ZH) is synthesized to demonstrate the advantages of hydrated hydrogel structure in comparison with dry powder structure. The synthesis of graphene-based hydrogels is a green chemistry approach to attain extraordinary properties of graphene-based nanostructures. Hydration forces in the hydrogel prevent van der Waals stacking and graphene agglomeration. Analytical characterizations exhibited moisture contents, three-dimensional structures, elemental compositions, functional groups and antibacterial activities. Non-stacking state of graphene-based nanosheets in GO-SG-ZH hydrogel was suitable for direct brush painting on polymer substrates, typically polylactide films. GO-SG-ZH coating on polylactide film was antibacterial and stable in aqueous food simulants for one month. In general, supramolecular graphene-based hydrogels are bioinspired hydration structures to advance nanoscale properties and nanotechnology applications.
DA 362: A Gamma-Ray-emitting Compact Symmetric Object
Authors: Swain Subhashree , Paliya Vaidehi S. , Saikia D. J. , Stalin C. S.
Published: January 2025

The γ-ray detection from an astrophysical object indicates the presence of an extreme environment where high-energy radiation is produced. With the continuous monitoring of the γ-ray sky by the Fermi Large Area Telescope (LAT) leading to deeper sensitivity, high-energy γ-ray emission has now been detected from a diverse class of jetted active galactic nuclei (AGNs). Here, we present the results of a multiwavelength study of the radio source DA 362, which was reported to be a blazar candidate of uncertain type. However, it was recently identified as a bona fide compact symmetric object (CSO) based on its subkiloparsec, bipolar radio morphology, and lack of radio variability. This makes DA 362 only the fourth γ-ray-emitting object of this enigmatic class of radio-loud AGNs. Using five very-long-baseline interferometry observations covering 1996–2018, we found the jet separation velocity to be subluminal (v
app ~ 0.2c), thus supporting its CSO nature. Its Fermi-LAT observations revealed a γ-ray flaring activity, a phenomenon never detected from the other three γ-ray-detected CSOs. This object is bright in the near-infrared band but extremely faint in the optical-UV filters, hinting at possible obscuration. Swift X-Ray Telescope observation of DA 362 reveals an extremely hard X-ray spectrum, though a strong claim cannot be made due to large uncertainties. We conclude that deeper observations are needed to probe the broadband properties of this enigmatic object and to understand the origin of high-energy γ-ray emission.
«Per ocasió com se deye que devie ésser guerra» Almacenaje y uso de armas en los castillos bajomedievales a partir del caso de Morvedre
Authors: Mateu Alexandre
Published: January 2025

Los reyes y señores solían custodiar en sus castillos cantidades notables de armas. Ahora bien, ¿cuántas se almacenaban, de qué tipo y con qué finalidad? El objetivo del presente estudio es avanzar en la resolución de estas cuestiones a partir del análisis del castillo de Morvedre, actual Sagunt. La riqueza de las fuentes documentales conservadas para dicha fortificación ha hecho posible cuantificar este armamento y trazar su evolución a través de un análisis cualitativo y diacrónico entre los siglos XIV y XVI. A través de los datos obtenidos se ha planteado una hipótesis sobre el propósito con el que los reyes mantenían estos depósitos. Además, se ha podido constatar el aumento de la cantidad de armas a consecuencia de la Guerra de los dos Pedros o la actualización de los almacenes durante el final del siglo XV e inicios del XVI mediante la compra de artillería pirobalística, escopetas y picas.
Una encrucijada de voluntades: conflictos «poliédricos» en Hispania Roma, Cástulo y los ilergetes (218-195 a. C.)
Authors: Ventós Gerard
Published: January 2025

La Segunda Guerra Púnica y la revuelta del 197-195 a. C. sumieron parte de la península ibérica en un estado de inestabilidad e incertidumbre, provocando la aparición de nuevos enfrentamientos que se imbricaron con el conflicto ya existente. En toda la región surgieron nuevas rivalidades internas o se reactivaron las antiguas, así como conflictos intercomunitarios por la hegemonía regional. Por este motivo, en este artículo superamos el modelo bipolar que estudia la guerra como un enfrentamiento entre comunidades políticas definidas y analizamos la realidad poliédrica de ambas contiendas. A través del análisis de dos episodios concretos, el conflicto interno en Cástulo y la guerra por la primacía regional de los ilergetes, pretendemos demostrar la superposición de enfrentamientos en un mismo espacio y tiempo, con la participación de múltiples actores que defienden objetivos diversos en el marco de un enfrentamiento mayor.
Los centuriones legionarios y sus espacios Una revisión por medio de la epigrafía de las sedes campamentales del Africa Proconsularis-Numidia (ss. I-III d. C.)
Authors: Ortiz de Bruguera Jorge
Published: January 2025

La epigrafía de las bases campamentales altoimperiales del Africa Proconsularis-Numidia, junto con la información arqueológica, han sido los dos grandes elementos puestos al servicio de la reconstrucción de paisajes epigráficos. Conocer la forma en la que se distribuyen y concentran las distintas inscripciones ha tenido una doble finalidad: la primera, la de dar una panorámica actualizada de la ubicación de los distintos espacios donde se registra el paso de centuriones legionarios. La segunda, la de incidir en las razones que explican su presencia en ellos. El resultado final ha sido una mejor comprensión de las funciones y los comportamientos de estos suboficiales, e incluso de las esencias de su estatuto militar.
La fonction rituelle du dispositif Différents et Compétents : ambiguïtés et dons professionnels
Authors: Hatano-Chalvidan Maude
Published: January 2025

Cet article propose de revenir sur un dispositif particulier de Reconnaissance d’Acquis de l’Expérience professionnelle des personnes en situation de handicap : le dispositif Différents et Compétents créé en 2006. Ce dernier a déjà fait l’objet de recherches et d’interprétations en termes de formation et d’accompagnement (Laville, Mazereau, 2022). Ce texte propose une nouvelle lecture de ce qui se joue au sein du dispositif qui peut être lu comme une forme de co-activité codifiée où la mise à l’épreuve visible (passage du candidat devant un jury professionnel) implique également de manière invisible la mise à l’épreuve du formateur-accompagnant. Ce non-dit du dispositif pris dans sa forme rituelle produit de l’ambiguïté fonctionnelle (Durkheim, 1991) avec laquelle chacun (formés et formateur) travaille son expérience et construit du sens sur son vécu et par extension sur son propre parcours social et professionnel. Ce sens de l’expérience nous amène ainsi à nous interroger sur la place d’une forme de « don pédagogique » au cœur de la relation formés et formateurs-accompagnants.
Vers un dispositif innovant de formation à la communication des médecins généralistes avec leurs patients : une démarche didactique professionnelle pour identifier des ajustements multiregistres
Authors: Rabiaza Andry , Saillot Eric
Published: January 2025

Cet article présente l’approche exploratoire d’une recherche doctorale qui vise à construire un dispositif innovant de formation à la communication des médecins généralistes avec leurs patients. Cette recherche s’appuie sur le modèle des ajustements multiregistres, et sur une démarche de didactique professionnelle. Les premières étapes ont cherché à identifier les représentations de médecins généralistes en matière d’ajustements dans la situation de communication avec leurs patients. La seconde phase a expérimenté un dispositif innovant de formation basé sur des entretiens d’autoconfrontation, pour analyser les compétences communicationnelles et relationnelles en développement chez des médecins généralistes dans leur approche centrée patient.
Poder, prestigio y propaganda: los cántabros de Cuba y la revista La Montaña
Authors: Rodríguez Pereda Enrique
Published: January 2025

Los cántabros emigrados a Cuba se convirtieron entre finales del siglo XIX y principios del XX en una de las principales comunidades españolas de la isla. Acorde a su poder, decidieron crear una revista que mostrase su destacada posición social y, al mismo tiempo, difundiese las noticias de su tierra de origen. Fruto de ese proceso surgió La Montaña, editada en La Habana entre 1915 y 1954. La revista permitió a los montañeses de Cuba ejercer una gran influencia en la Provincia de Santander, y su carácter cubano la convirtió en una excepción. En este trabajo se analiza el devenir de La Montaña junto a las principales personalidades que la dirigieron o colaboraron en ella, así como se destaca su carácter propagandístico y la ideología conservadora que acompañó su línea editorial. Con ello se pretende sentar una base para futuras investigaciones que permitan profundizar en la historia de la publicación y en el estudio de su impacto.
El oficio de periodista durante la Gran Guerra (1914-1918) ¿Un trabajo peligroso? Entre la innovación, la censura y el presidio
Authors: Pulido Azpíroz Alejandro
Published: January 2025

La Gran Guerra (1914-1918) supuso a nivel global un proceso de modernización de la prensa y, por tanto, de la profesión de periodista. Este desarrollo también se apreció en regiones como el País Vasco y Navarra, donde los medios de comunicación evolucionaron de forma muy notable, presentando rasgos típicos de la prensa de la sociedad de masas. Dicho desarrollo se caracterizó por un uso de nuevos géneros como las crónicas de guerra y del empleo de nuevas tecnologías, destacando los casos de los periodistas vinculados a Euzkadi y Diario de Navarra. Se vio a su vez acompañado de serias dificultades, sobresaliendo las diversas formas de censura, algunas ejercidas por el Gobierno español y otras por los países beligerantes. Analizaremos esta modernización prestando atención a los casos particulares de periodistas como Imanol, Garcilaso, así como a la represión sufrida por numerosos periodistas, en particular los aliadófilos.
Da mesquita à catedral, percurso por um lugar central em Lisboa
Authors: Bugalhão Jacinta
Published: January 2025

No presente texto procura-se apresentar, de forma muito sintética, os dados históricos, arqueológicos e urbanísticos que concorrem para a hipótese aqui sustentada: a mesquita aljama de al-Ushbuna localizava-se no local onde hoje se implanta a Sé Catedral de Lisboa. A construção do templo cristão representa um exemplo clássico de reversibilidade dos espaços sagrados urbanos, entre o Gharb al-Andalus e o medievo reino de Portugal. Sob o claustro e o aterro que o infra-estrutura, a nascente da Catedral, conservam-se ruínas de um monumental edifício de época islâmica que se interpreta como complexo da mesquita aljama de al-Ushbuna.
Destruction productive ou prédation permanente ? L’eau, le travail et l’accumulation dans la production de fraises à Huelva (Andalousie, Espagne)
Authors: Buier Natalia , Narotzky Susana
Published: January 2025

Cet article aborde une énigme majeure de nos sociétés capitalistes : comment expliquer la reproduction et l’expansion d’un système économique qui semble systématiquement détruire la vie humaine ou autre ? Les concepts d’accumulation prédatrice et de destruction productive ont été proposés comme cadres théoriques pour expliquer les processus capitalistes. Un premier examen du vaste champ sémantique de la prédation, de la destruction productive et de l’accumulation de valeur fournit une base pour notre étude ethnographique. À travers l’exemple de la culture intensive de fraise dans le Sud de l’Espagne, nous abordons les contradictions qui relient l’accumulation de valeur, la reproduction de la nature humaine et non humaine, et la continuité du système économique politique. Nous concluons qu’un aspect crucial de l’extraction et de l’accumulation de valeur est la (dé)connexion entre la production et la reproduction, à savoir le fait que la reproduction des matériaux ou de l’énergie utilisés dans la production n’est pas comptabilisée dans l’échange. En reliant la dévaluation des ressources humaines et non humaines à l’accumulation de valeur, nous cherchons à développer théoriquement les aspects interdépendants de la production et de la destruction de valeur et leur effet potentiel sur la reproduction sociale systémique.
W.S. Merwin’s Search for Walt Whitman, Whoever He Was
Authors: Folsom Ed
Published: January 2025

This essay recounts the author’s decades-long conversations with W.S. Merwin about Walt Whitman. Critics have long assumed that Merwin had a primarily negative attitude toward Whitman’s poetry, viewing him as a spokesperson for the U.S.’s embrace of manifest destiny and its catastrophic ecological impact. Some of Merwin’s dismissive attitude toward Whitman was inherited from two of Merwin’s acknowledged poetic mentors, Ezra Pound and T.S. Eliot, who both also had mostly negative attitudes toward Whitman. The essay argues, however, that both Pound and Eliot had somewhat hidden reserves of admiration for Whitman, and that the same is true of Merwin. The essay examines those aspects of Whitman that Merwin was both attracted to and influenced by—those moments when Whitman spoke of the grass and those moments when Whitman confronted silence and wordlessness—and analyzes Merwin’s poems “A Contemporary” and “Whoever You Are” as direct responses to Whitman, places where Merwin records his deep and intimate engagement with Whitman.
“Neither knowing nor not knowing”: Existential Anxiety and Ecological Certainty in the Poetry of W.S. Merwin
Authors: Vernon Peter
Published: January 2025

This paper argues that Merwin’s poetry is constantly aware of the dangers caused by mankind’s impact on the environment, which has the effect of separating humanity from the natural world. In this situation Merwin is certain of the rights of animals and oppressed peoples, yet his poetic voice is less certain of his position in the world. His poetry is suffused with a sense of absence, with the loss of friends, homes, animals, and family. These losses and consequent grief are examined in The Vixen, The Folding Cliffs, and other volumes collected in Migration: New and Selected Poems. Merwin’s poetry expresses loss through apophatic arguments, and rhetorically through praeteritio, and antithesis, which create an elegiac tone in the evocation of place. Since he sees the world holistically, he has frequent recourse to synesthesia. Merwin writes of loss and argues from the negative, but paradoxically although all has been lost, nevertheless something beautiful, sensual, and permanent remains—the poems themselves: Merwin’s lost world held in words.
Californie à Paris: Photographic Circulation and the Making of Imperial Identities, c. 1900
Authors: Görgen Carolin
Published: January 2025

Cet article propose une étude de cas de l’album souvenir Californie : Illustration pour l’Exposition de Paris 1900 dans le but de retracer la manière dont l’illustration photographique a servi à la fois à la promotion de la Californie en Europe et à la construction d’une identité de l’État de la côte Ouest au moment d’un impérialisme naissant. En analysant la séquence des images, leur mise en scène ainsi que les descriptions et traductions élaborées en français et en allemand, l’article reconstruit la solidification d’un récit partagé de l’Ouest américain, avec une iconographique jugée typiquement « californienne ». L’accent est mis sur les origines des contributeurs et leurs relations avec les réseaux de photographes locaux, notamment le California Camera Club, qui fournit la grande majorité du matériel photographique pour les publications commerciales de l’État au début du XXe siècle. La publication de Californie est une occasion rare pour diffuser auprès d’un public européen les productions d’une communauté de photographes éloignée. En même temps, le format même de l’album promotionnel reproductible va transporter une vision impériale de l’Ouest américain jusqu’à ses propres habitants, façonnant ainsi la compréhension locale de la place de la Californie dans le monde européen.
L’histoire sociale des sacrements au XIXe siècle : un premier bilan du croisement de la démographie historique, de l’histoire sociale et de l’histoire religieuse
Authors: Gourdon Vincent
Published: January 2025

Depuis une vingtaine d’années, le regard des historiens sociaux, des historiens démographes et des spécialistes de l’histoire sociale de la famille sur les archives religieuses catholiques du XIXe siècle s’est mis à changer et des sources comme les registres paroissiaux (livres de baptême, mariage, sépulture, mais aussi confirmation) se sont faites plus présentes dans leurs recherches. L’article passe en revue les principaux axes de renouvellement historiographique stimulés par cet intérêt nouveau, tout en pointant des pistes encore à défricher. Les actes de baptême sont de loin les sources les plus mobilisées, notamment autour de la question des choix de parrainage. Les actes de mariage religieux ont souvent été délaissés au profit des actes civils, mais leurs spécificités (les dispenses, en particulier) commencent à susciter des études. Une histoire sociale de la confirmation, sacrement longtemps négligé par les chercheurs, émerge enfin. Le dialogue entre historiens sociaux et spécialistes du fait religieux qui se construit autour des registres paroissiaux, éclaire d’une lumière nouvelle l’histoire sociale du XIXe siècle, celle de la famille tout particulièrement, mais il ouvre également des pistes nouvelles d’analyse des pratiques religieuses au-delà du paradigme de la sécularisation.
Des habits d’une « nuance plus ou moins carmélite ». Coudre la bure du Carmel au XIXe siècle
Authors: Jusseaume Anne
Published: January 2025

Cet article s’intéresse aux pratiques et au sens de la fabrication de l’habit religieux au couvent dans la France du XIXe siècle à partir d’une étude de monastères de Carmélites déchaussées, qu’ils soient restaurés après la Révolution française ou nouvellement fondés au XIXe siècle. Ce travail de couture, archétype du travail féminin, est investi d’un sens symbolique spécifique puisque l’habit est le signe et l’incarnation matérielle de la vocation et de l’appartenance à l’ordre des Carmélites. Interdit en 1792, partiellement gardé dans la clandestinité et progressivement repris au début du XIXe siècle, l’habit fait l’objet d’un effort réglementaire renouvelé dans le contexte de la politique anticléricale de la Troisième République, le tout dans le souci constant de retrouver et de préserver une tradition vestimentaire et identitaire. Cette remise en ordre normative, qui s’opère à travers la mémoire de la Révolution et par les circulations textuelles et textiles entre couvents, accompagne la production interne aux couvents. De l’approvisionnement en tissu à la confection en passant par la coupe, la fabrication de l’habit est soumise à des contraintes socio-économiques et à l’exigence de pauvreté tout comme à l’organisation du travail au sein du monastère. Ce dernier est réservé à quelques-unes – les robières – et demeure périodique parmi l’activité laborieuse du couvent. En croisant des imprimés et des sources internes aux monastères – textes réglementaires, chroniques, livres de comptes et pièces textiles – cet article questionne, à partir de la production réglementaire concernant l’habit religieux et sa fabrication, la tension entre une quête de tradition partagée et les adaptations en pratique de monastères autonomes.
Des bancs de l’Université à la gloire des autels : le doctorat des femmes en question dans l’Église catholique au tournant du XXe siècle
Authors: Tesson Clarisse
Published: January 2025

Alors que le titre de « docteur de l’Église » est utilisé par l’Église catholique depuis le Moyen Âge pour honorer des saints dont les écrits ont contribué à la défense et à la compréhension de la doctrine chrétienne, il faut attendre le XXe siècle pour qu’il soit accordé à des femmes. Si les premières proclamations datent de 1970, les premières demandes officielles remontent au début du XXe siècle, autour des figures de Thérèse d’Avila et de Thérèse de Lisieux. Bien que toutes deux carmélites, leurs causes ne sont pas portées par les mêmes acteurs ni par les mêmes contextes nationaux, mais se trouvent liées par le fait qu’elles se heurtent toutes deux au refus du pape Pie XI de proclamer une femme docteure de l’Église. Le présent article cherche à retracer l’histoire de ces premières demandes d’octroi du titre de docteur de l’Église à des femmes, au regard de l’évolution de la place des femmes dans la société et de leur nouvel accès à l’Université, à partir de la fin du XIXe siècle, mais de facteurs plus internes à la sphère religieuse comme peuvent l’être le renouveau et le débat autour de la mystique au tournant du siècle.
Le miracle financier de Gallipoli.
Authors: Castelnuovo Antoinette Guise
Published: January 2025

Les récits de miracle permettent de penser la manière dont s’élabore un imaginaire collectif qui déborde le catholicisme et dont l’impact peut être très concret dans différents domaines : des catholiques se mobilisent pour faire connaître la vie de Thérèse de Lisieux (1873-1897), son image, sa voie spirituelle et ses capacités d’intercession. Ils se constituent en une multitude de réseaux de solidarité destinés à convertir le monde, à développer les œuvres de charité, mais aussi à obtenir une reconnaissance institutionnelle à même, pensent-ils, de contribuer à leur propre transformation intérieure et de démultiplier les effets spirituels et sociaux de leurs prières. Envisager la fabrication de la sainteté sous l’angle du miracle de Gallipoli permet de mieux comprendre le fait de croire comme une pratique éminemment sociale, qui plus est historiquement située. L’étude d’un dossier restitué dans son contexte donne accès à une religiosité sensible en montrant à quel point elle est connectée aux strates institutionnelles, dogmatiques et pratiques qui constituent l’Église catholique.
Historiographie anglophone : faire de l’histoire religieuse dans une société enracinée dans la religion
Authors: Harrison Carol E.
Published: January 2025

Le dernier quart de siècle a vu le renouveau de l’histoire religieuse au sein de la recherche universitaire anglophone. Les historiens travaillant aux États-Unis, et dans une moindre mesure, au Royaume-Uni, remettent de plus en plus en question l’hypothèse selon laquelle la modernité va de pair avec la sécularisation. Le lien entre les deux apparaît davantage comme une relique des certitudes du XIXe siècle que comme un cadre d’interprétation utile. Les études récentes sur la religion au XIXe siècle européen mettent en évidence ses modèles de croissance et son dynamisme plutôt que de se contenter d’indexer son déclin. Cet article se concentre sur trois pistes de recherche qui orientent actuellement les travaux : 1. l’empire et l’église missionnaire ; 2. le pluralisme et la religion volontaire ; et 3. le rôle des femmes dans l’église.
The Ethics of Ad Fraud
Authors: Tyagi Mani , Srivastava Priyanka , Khanna Kirti
Published: January 2025

This chapter will delve into the ethical implications of the prevention of ad fraud. It will explore how businesses can and should respond to the challenges posed by ad fraud, not only from a compliance standpoint but also from an ethical one. The chapter will discuss the broader impact of ad fraud on stakeholders, including consumers, advertisers, and the digital advertising ecosystem as a whole, and propose actionable strategies for companies to adopt ethical practices in combating ad fraud. brief introduction to ad fraud by defining it, and its prevalence in the advertising industry, explaining the cause of it. It will explain its effects on business practices, which include loss of consumer trust, damage to the reputation of the concerned industry, distortion of brand name and image, and reduced ROI; eventually marketers will confront damage to their credibility, audience misrepresentation, and revenue loss. It will also address the importance of overcoming ad fraud from an ethical and corporate responsibility perspective.
The Development of a Digital Educational Game Design Training in Teacher Education
Authors: Kulaksız Taibe , Kelleci-Alkan Özge
Published: January 2025

This design-based research study aimed to develop and refine a digital educational game development training framework for pre-service teachers. Following established instructional design models, the curriculum was designed to equip pre-service teachers with key competencies in pedagogy, scenario, game design, and technical skills. In the first iteration, challenges related to the delayed introduction of technical training were identified, particularly for participants with limited technical skills. This was addressed in the second iteration by integrating blog-based programming language training earlier in the process, allowing pre-service teachers to create more advanced game prototypes. The results demonstrated significant improvement in pre-service teachers' digital educational game development self-efficacy scores, as shown by higher mean scores in the second iteration. Participants expressed positive feedback on the revised course structure, noting that the earlier integration of technical skills enhanced their ability to design and develop digital educational games.
Implementing Design-Based Research in Developing Mobile Flipped Learning Module at TVET Institution
Authors: Mohsin Norharyanti , Halili Siti Hajar
Published: January 2025

This chapter outlines the design and development of a mobile flipped learning module aimed at enhancing teaching practices among educators in TVET higher learning institutions through the flipped classroom approach. The mobile flipped learning (MFL) module plays a significant role in fostering the professional development of lecturers, enabling them to incorporate the flipped classroom strategy into their teaching practices. Utilizing a design-based research technique, the module development was divided into four major phases – analysis, design and develop with validation using ACTA technique, implementation, and usability. It involves 30 lecturers with a mixed method data collection technique. Findings indicate a positive impact on lecturers' professional development, enhancing their performance, attitude, behavior, and effort in adopting new practices with the MFL module. This strategy offers new insights into integrating technology into teaching practices and enhancing students' learning experiences.
AI and Its Transformative Role in Financial Services
Authors: Dhawas Pranali , Katankar Veena Kewalram , Gorakh Jayshree , Shende Rashmi Ravi , Madankar Mangala , Sahni Tanishka
Published: January 2025

The financial services industry is undergoing a significant transformation driven by advancements in artificial intelligence (AI). This chapter explores the multifaceted impact of AI on financial services, highlighting its potential to enhance efficiency, accuracy, and customer experience while simultaneously presenting challenges related to ethics, security, and regulation. By leveraging AI technologies such as machine learning, natural language processing, and predictive analytics, financial institutions are revolutionizing areas such as risk management, fraud detection, personalized banking, and investment strategies. The chapter delves into case studies and real-world applications, illustrating how AI is reshaping traditional banking models and enabling the development of innovative financial products and services.
ML Use in Fraud Detection in the Financial Sector
Authors: Yadav Sameer , Singh Archana , Peddapalli Nagaraj , Chauhan Amit , Ahmed Syed Arfath , Bhoopathy V.
Published: January 2025

Detecting fraud is complex, requiring analysis of vast data over time, making it resource-intensive for human investigators. This chapter explores key forms of financial fraud, including those involving corporations, banks, and insurance sectors. It provides a thorough evaluation of various machine learning techniques, such as supervised and unsupervised learning, deep learning, and ensemble methods, used to detect and prevent these financial crimes. The chapter examines the effectiveness of algorithms like LR, DT, SVM, and NN in identifying complex fraud patterns. Additionally, it discusses advanced approaches like anomaly detection, clustering, and real-time fraud detection systems. It highlights ongoing challenges and proposes potential future developments, including explainable AI, federated learning, and improved data processing techniques. This comprehensive exploration aims to deepen the understanding of machine learning's role in fraud detection and guide future research toward more effective and reliable fraud prevention strategies
rGO and carbon black embedded positive electrode for lead-acid battery
Authors: Dissanayeka R. J. , Buddhika W. G. K. S. , Randika K. K. Pipun , Madushan M. K. T. , De Silva R. C. L. , Abeykoon A. M. K. L. , Kottegoda I. R. M.
Published: January 2025

Lead acid battery has long been recognized as a versatile cost-effective energy storage solution for applications, including automotive, renewable energy integration, and telecommunications. The present research aims to investigate the impact of specific additives such as carbon black and reduced graphene oxide on the positive electrode of lead oxide batteries. To assess the performance of lead oxide batteries, the electrode material is formulated by combining lead oxide, lead dioxide, and additives at appropriate ratios and characterized using XRD and SEM. The discharge capacity of each positive electrode is investigated using a two-electrode cell and results were compared with a similar commercial cell. When the rGO or carbon black ratio of the positive electrode is 0.4% (w/w), the respective discharge capacities of the battery were 276.4mAh and 243.68mAh which is well above the discharge capacity of a commercial battery under similar conditions. In addition, the respective voltage drops of the battery with each rGO and carbon black were 0.22V and 0.30 V which is significantly less than that of a similar commercial battery (1.07V). In addition, a stable capacity was observed in the rGO based battery during the chargedischarge cycling. These findings highlight the potential of rGO and carbon black as additives in improving the electrochemical performance of lead-acid batteries.
The effect of dye on conductivity of Polymer (PVC) observed by spectroscopic studies
Authors: Bhardwaj M. K. , Awasthi S. K.
Published: January 2025

The conducting behaviour of Pure and Malachite green mixed Polyvinyl Chloride (PVC) samples prepared using the solution cast method in various ratios, was investigated using Ultraviolet (UV)transmittance, UV absorbance, Infrared (IR) transmittance, and X-ray Diffraction (XRD). The results show that UV transmittance decreases with sensitizer concentration in PVC. UV absorbance shows an increasing trend with the degree of sensitization. The formation of a charge transfer complex in a polymer matrix was inferred from these studies. Reduction in electronic bandgap and hence change in conductive behaviour is reported.
Novedad léxica como medida de riqueza léxica en un corpus oral contemporáneo
Authors: Martínez-Martínez Inmaculada , Ueda Hiroto
Published: January 2025

Los estudios cuantitativos del léxico más generalizados son, entre otros, los léxicos básicos, los disponibles y los que miden la riqueza léxica (Ávila Muñoz 2014). En esta última dirección se ubica el presente estudio. Tradicionalmente, la fórmula empleada a partir de la cual se obtiene la riqueza media de cada texto es TTR (Type Tokens Ratio), consistente en dividir el número de vocablos diferentes entre el total de palabras (Capsada y Torruella 2017). Esta fórmula es válida cuando se comparan corpus de igual tamaño, pero no resulta fiable al cotejar textos de distinta dimensión. Junto a la densidad, otros índices para medir la riqueza léxica -como la diversidad (Baayen 2001), la información (Shannon y Weaver 1963) o lo que llamamos la peculiaridad (Baayen 2001, 2008)- tampoco están exentos de problemas. En este artículo se revisan tales conceptos y se propone la novedad de frecuencia (N) como un nuevo índice de riqueza léxica. Se ofrece una definición, la fórmula correspondiente y se aplica al corpus sociolingüístico PRESEEA-Santander en dos direcciones: la categoría gramatical y los parámetros sociolingüísticos (sexo, edad y nivel educativo). Se aprecia, a tenor de los análisis, una diferencia notable de novedad léxica en función de la categoría gramatical y escasa en lo que atañe a los criterios sociolingüísticos, probablemente como medio para garantizar la comunicación humana. La metodología a partir de la cual se lleva a cabo la estadística léxica emplea el paquete R de ggplot y psych.
Circulación de representaciones sociodiscursivas y (re)producción de estereotipos en torno a la problemática habitacional en la CABA
Authors: Marchese Mariana
Published: January 2025

El derecho a la vivienda es uno de los más vulnerados en Argentina y afecta, especialmente, a las personas en situación de pobreza extrema. Este trabajo se centra en esa problemática dentro de la Ciudad Autónoma de Buenos Aires (CABA). En él, se estudia, lingüístico-discursivamente, cómo la construcción y la circulación de estereotipos acerca de dichas personas: a) impactan sobre sus posibilidades de autogestión y de resiliencia y b) son acciones discursivas inscriptas dentro del concepto ‘violencia invisible’. El corpus analizado se compone de discursos legales y de discursos ‘de’ y ‘en’ los medios de comunicación. Todos ellos, asociados a la problemática habitacional de las personas en situación de pobreza extrema que habitan la CABA. El paradigma de investigación es interpretativista, el enfoque es el Análisis Crítico del Discurso (ACD), la metodología es inductiva y cualitativa con triangulación de datos y se aplica el Método de Abordajes Lingüísticos Convergentes (MALC), que incorpora el estudio de procesos y de roles participantes. Respecto de estos, los resultados revelan que las personas en situación de pobreza extrema son representadas con un patrón lingüístico-discursivo que les resta capacidad de acción, lo que dificulta su posibilidad para abordar la problemática habitacional de manera proactiva. Sobre la base de estos datos concretos, se concluye que resulta relevante analizar los discursos que rodean esa problemática para colaborar en la toma de decisiones más efectivas y equitativas.
Ideologemas y topoi argumentativos ante el lenguaje no sexista
Authors: Falorni Silvia
Published: January 2025

Bajo el enfoque de la glotopolítica, en este estudio se presentan los resultados de 11 grupos focales realizados en torno al lenguaje no sexista, de los cuales se analizaron los ideologemas y los topoi argumentativos que participan en la perpetuación de los efectos del patriarcado. Se identificaron 8 ideologemas y se concluyó que en ellos se reflejan 2 ideologías lingüísticas principales: en primer lugar, la falta de reconocimiento de sus demandas en el ámbito lingüístico como algo relevante y la consecuente la percepción de los movimientos feministas y disidentes como agresivos y exagerados. Por otro lado, circula una visión estructuralista-funcional de la lengua, en la que el lenguaje no sexista quedaría relegado al ámbito de la forma y de lo políticamente correcto.
Precursores psicolingüísticos de la lectura y ajuste de la concepción simple de la lectura a lo largo de la educación Primaria en un contexto de bajo rendimiento lector
Authors: Cubilla Bonnetier Daniel , Sánchez-Vincitore Laura Virginia
Published: January 2025

El modelo de la concepción simple de la lectura postula que la comprensión lectora es el resultado de la conjunción de dos factores: la comprensión del lenguaje oral y la destreza en la decodificación, que a su vezse asienta sobre precursorescognitivos como la conciencia fonológica y la velocidad de nombrado. Diversas pruebas internacionales han mostrado en estudiantes de Panamá un bajo nivel lector previo a la apariciónde la pandemia porSARS-CoV-2. Este estudio se realizó tras un año de suspensión de la educación presencial en el país. Su finalidad fueevaluar de forma virtual el estado del desarrollo lectorde una muestra representativa de 339 estudiantes de 2°, 4° y 6° de primaria de la región metropolitana de Panamá, estudiar la contribución a la lectura de determinadas capacidades psicolingüísticasy comprobar el ajuste del modelo de la concepción simple de la lectura en un contexto de bajo desempeño lector. Los resultados mostraron un desarrollo precario de la lectura en 2° grado. Por otra parte,el aporte a la lecturade la velocidad de nombrado fue creciendo a lo largo de la primaria y el de la conciencia fonológica resultó más persistente de lo esperado. Por último, se encontró un buen ajuste de la concepción simple de la lecturaal contexto de estudio, aunque con los rasgos distintivos deun aporte persistente del factor de decodificación a la comprensión lectora y una mayor contribución del componente de precisión quedel de fluidez al factor de decodificación.
Peak‐to‐average power ratio reduction of orthogonal frequency division multiplexing signals using improved salp swarm optimization‐based partial transmit sequence model
Authors: Tripathi Vandana , Patel Prabhat , Jain Prashant Kumar , Shukla Shailja
Published: January 2025

Several peak‐to‐average power ratio (PAPR) reduction methods have been used in orthogonal frequency division multiplexing (OFDM) applications. Among the available methods, partial transmit sequence (PTS) is an efficient PAPR reduction method but can be computationally expensive while determining optimal phase factors (OPFs). Therefore, an optimization algorithm, namely, the improved salp swarm optimization algorithm (ISSA), is incorporated with the PTS to reduce the PAPR of the OFDM signals with limited computational cost. The ISSA includes a dynamic weight element and Lévy flight process to improve the global exploration ability of the optimization algorithm and to control the global and local search ability of the population with a better convergence rate. Three evaluation measures, namely, the complementary cumulative distribution function (CCDF), bit error rate (BER), and symbol error rate (SER), demonstrate the efficacy of the PTS‐ISSA model, which achieves a lower PAPR of 3.47 dB and is superior to other optimization algorithms using the PTS method.
Agrarian issue and peasant reproduction in the contradictions of capital versus labor
Authors: Souza Suzane Tosta
Published: January 2025

This article aims to highlight some contributions of Conceição (1991, 2005, 2007, 2013) to the reading of the Brazilian agrarian issue, emphasizing reflections on the process of peasant reproduction amidst the contradictions of capital advancement in the countryside, the agribusiness expansion in a context of capital productive restructuring on a global level, the transformations in the labor world due to the structural crisis, and the intensification of mobility and precarious working conditions both in the countryside and in cities. The research was conducted based on a bibliographic survey, treatment and analysis of concepts that support the debate on the agrarian issue, utilizing, also, secondary data and readings from other authors, especially in the discussion of methodology. It is concluded that it is essential to bring to light the reflections pointed out by the author, mainly due to the observation of few analyses that address the repercussions of the capital crisis and the restructuring it undergoes to meet the objectives of accumulation, including in the countryside, while, contradictorily, peasant reproduction constitutes itself in a unit of submission and confrontation against this process.
Levantamento da flora e elaboração de um catálogo das espécies presentes na Área de Preservação da ONG Ambiental Águas de Minas, Divinópolis – MG
Authors: Duarte Ana Carolina Oliveira
Published: January 2025

O Cerrado abriga uma rica diversidade, mas é um dos biomas mais ameaçados do mundo. A antropização influencia a paisagem, sendo fundamentais os estudos da florística para traçar estratégias de conservação. As áreas verdes são importantes na preservação e qualidade de vida no meio urbano. A ONG Ambiental Águas de Minas vem implementando ações de proteção dos recursos naturais. Assim, o objetivo deste estudo foi realizar levantamento da flora e elaborar um catálogo com as espécies identificadas na área da ONG, visando fornecer subsídios para conservação. A pesquisa foi conduzida em Divinópolis-MG, com foco nas espécies arbóreas. O material botânico foi herborizado e identificado por meio de literatura especializada. Após a correta identificação das espécies, foi confeccionado um catálogo para auxiliar na conservação da área e divulgação botânica, disponibilizado digital e gratuitamente. Foram identificadas 24 espécies arbóreas, sendo a mais representativa a família Fabaceae. As imagens obtidas foram inseridas juntamente com as informações retiradas de materiais botânicos de referência. A confecção do guia foi fundamental para revelar as diferentes espécies vegetais presentes na área. Este estudo contribui de forma significativa para a ampliação dos conhecimentos botânicos da população local, de conhecimentos científicos e conservação ambiental.
Nuances e relações sobre o Terroir e a Indicação Geográfica do café de Minas Gerais: uma abordagem histórica
Authors: Ferreira Daniele Araújo , Alves Adriana Célia
Published: January 2025

A cafeicultura, há séculos, constitui um dos segmentos mais dinâmicos do setor econômico de Minas Gerais, considerando o volume de produção, a movimentação de capitais e a massa socioeconômica ocupada nessa atividade. O presente trabalho tem como objetivo central realizar uma análise epistemológica, por meio de um levantamento bibliográfico de cunho qualitativo exploratório, descrevendo as relações presentes na produção de café que possuem Indicação Geográfica (IG) e o terroir específico no estado de Minas Gerais, além de evidenciar o aumento da produção cafeeira no estado. O café é o produto agrícola brasileiro com o maior número de registro de IG no Instituto Nacional da Propriedade Industrial. Sua trajetória histórica integra a formação socioeconômica e cultural do Brasil desde o século XVIII. A IG tem sido objeto de observação e pesquisas por permitir a identificação da origem de produtos ou serviços com base em sua localização geográfica. O conceito de terroir, por sua vez, está relacionado a categorias-chave da Geografia, abrangendo a interação entre o meio natural e os fatores humanos. Esse conceito é essencial, pois considera não apenas aspectos naturais (clima, solo, relevo), mas também elementos humanos que influenciam a produção. As análises desenvolvidas neste trabalho fundamentaram-se nesses conceitos, permitindo evidenciar que a produção de café em Minas Gerais está diretamente vinculada tanto à IG quanto ao terroir. Constatou-se que, além de ser o maior produtor de café do Brasil, o estado se destaca pela produção de cafés certificados, reconhecidos nacional e internacionalmente, conforme os padrões estabelecidos pela Associação Brasileira da Indústria de Café (ABIC) por meio do Programa de Qualidade do Café.
Network Embedding Methods: Study and Comparison
Authors:   1 LIMPAF laboratory, Department of Computer Sciences, University of Bouira, 10000 Bouira, Algeria, BENBATATA Sabrina , SAOUD Bilal ,   2 Electrical Engineering Department, Sciences and Applied Sciences Faculty, LISEA laboratory, University of Bouira, 10000, Bouira, Algeria
Published: January 2025

Graph is a powerful language that can model many systems in different fields such as information sciences, social sciences, Biology, mathematics, physics, etc. Graphs can capture very well the relationships between nodes and their structure. Representing data through graphs has some limitations and is challenging to use them like input in machine learning and deep learning models. This challenge can be overcome by using network embedding. Embedding represents a network into low-dimensional vector space. Several methods have been proposed to embed networks. Methods like DeepWalk, Node2Vec and GraphSAGE have gained traction. DeepWalk employs random walks to capture local neighborhood information, generating embeddings using skip-gram models. Node2Vec extends this by incorporating biased random walks, balancing exploration and exploitation of the network. GraphSAGE adopts a neighborhood aggregation strategy, aggregating features from a node's local graph structure through different convolutional layers. These methods facilitate downstream tasks like node classification, link prediction and clustering. Challenges include scalability to large networks, handling heterogeneous information and preserving structural characteristics. Recent advancements integrate techniques like attention mechanisms and reinforcement learning for improved embeddings. Network embedding methods continue to evolve, catering to diverse applications in social networks, biology and recommendation systems, offering insights into complex network structures. In this paper we provide networks embedding concepts and some methods. A comparison between embedding methods is presented. Embedding network methods on node classification tasks on different benchmark datasets have been conducted in order to evaluate them. Through rigorous evaluation, we assess their effectiveness in capturing latent features and improving classification accuracy across various domains.
The Role of Linguo-Stylistic Devices in Principled Negotiations.
Authors: Baghramyan Ruzanna
Published: January 2025

The research examines the linguo-stylistic features of persuasive speech used in business negotiations in films. In particular, strategies for the effective use of certain stylistic devices (euphemism, epithet, gradation/climax, allusion, metonymy, metaphor, etc.) used in Principled negotiations in the context of situational, functional, and personal styles are discussed. Reference is made to the method of Principled negotiation, its fundamental value, the four main merits, as well as the importance of BATNA (the best alternative to the negotiated agreement). Through the linguo-stylistic analysis of the film-based business discourse, the stylistic devices are highlighted, the use of which ensures the implementation of the merits of Principled negotiations. Special emphasis is placed on the effectiveness of using persuasive speech as a strategic technique of language intervention in the negotiation process. The basis for the examination of the examples in the research are the selected negotiation episodes from movies. Based on the analysis, the most applicable stylistic devices in Principled negotiations are distinguished.