Studia Universitatis Babeş-Bolyai
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Antimicrobial effects produced by gold nanoparticles obtained with extracts of Allium sativum and Allium ursinum
Get PDFGold nanoparticles (AuNPs) obtained by green synthesis using plant extracts from the genus Allium have attracted significant scientific interest due to their potential applications as antimicrobial agents in the biomedical field. This study investigates the antimicrobial potential of AuNPs obtained by green synthesis using extracts of Allium sativum and Allium ursinum. These plant extracts are rich in sulfur compounds (allicin), flavonoids and polyphenols, which not only facilitate the formation of nanoparticles, but also confer them increased antimicrobial properties. The nanoparticles thus obtained were characterized by spectroscopic methods (UV-Vis) and were tested for antimicrobial activity. Microbiological tests performed in vitro demonstrated an antimicrobial activity of the nanoparticles against Gram-positive (Staphylococcus aureus) and Gram-negative (Escherichia coli) bacteria but also against Candida albicans and Candida parapsilosis. The results support the idea that gold nanoparticles functionalized with Allium extracts may constitute a promising alternative in the development of natural antimicrobial compounds with applications in medicine, the food industry and the pharmaceutical field.
Article history: Received 16 May 2025; Revised 29 May 2025;Accepted 29 May 2025; Available online 25 June 202
Intrinsic Motivational Climate and Physical Activity Levels of Female Students in Budapest, Hungary
Get PDFMotivation is a vital determinant in sustaining physical activity (PA). Motivation influences not only PA participation but also serves as a crucial determinant of exercise adherence. The study of motivational processes in sports for adolescents is crucial because, according to the World Health Organization, globally, 81% of adolescents aged 11-17 years were insufficiently physically active in 2022. The present research aimed to investigate a) the relationship of the variables of IMCPEQ [ intrinsic motivational climate of PE lessons questionnaire] with PA of Hungarian female students and b) the differences concerning motivational components of students’ PA. A sample of 325 Hungarian female students from nine schools aged 13–15 (mean age = 14.07; SD = 0.87) was used. They responded to the questionnaires online. Pearson correlation coefficient and one-way ANOVA were performed to identify the relationship and differences between variables. Findings indicated a significant positive relationship between PA levels and Task-involving climate, Social-relatedness supporting climate, Autonomy-supporting climate, Enjoyment, and Physical activity. No relationship was present between Ego/competitive climate variable and PA levels. Moreover, the intrinsic motivational climate in physical education (PE) significantly influenced differences in PA levels among female students. Post hoc test with Bonferroni corrections’ results indicated significant differences in the variables. To summarize, IMCPEQ, as analysed by the Self-determination Theory and Achievement Goal Theory, encouraged physical activity. According to the study results and based on the higher mean of the task-involving climate, students’ personal development, objectives, and expertise in skills should be emphasized.
Article history: Received: 2024 November 18; Revised 2025 January 08; Accepted 2025 January 10; Available online: 2025 February 10; Available print: 2025 February 2
Machine Learning - Based Prediction of Algerian University Student Participation in Sports Activities
Get PDFStudent participation in university sports is influenced by individual, social, cultural, and institutional factors. Despite the recognized benefits of sports, many students face barriers such as academic pressures and inadequate infrastructure. This study proposed a machine learning-based approach to predict sports participation among Algerian university students, focusing on identifying key factors like gender and athletic background to guide inclusive sports policies. Using models like logistic regression and decision trees, the study effectively predicted participation patterns and highlighted the most attractive sports disciplines, enabling better resource planning and tailored programs. This approach offers valuable insights for fostering a dynamic, inclusive sports ecosystem and emphasizes the potential of machine learning to enhance university sports management.
Article history: Received: 2024 November 07; Revised 2025 January 20; Accepted 2025 January 22; Available online: 2025 February 10; Available print: 2025 February 2
Alexandra-Maria Vrînceanu, Feminist Ideology and Translated Literature, Iaşi: Institutul European, 2024, 244 p.
Get PDFThe young scholar Alexandra-Maria Vrînceanu has an extensive experience as a freelance interpreter and certified translator at Cartea Românească Publishing Press and Black Swan Publishing Press. Since 2019 Vrînceanu has been teaching seminars and practical courses on translation, discourse analysis, and English grammar at the Faculty of Letters of “Alexandru Ioan Cuza” University in Iaşi, Romania.
The present study on feminist ideology and the process of translating literature was initially Vrînceanu’s doctoral thesis which she successfully defended in 2023. This piece of scholarship is extremely interesting from several points of view. Firstly, the connection between translation and gender has already been approached as a feminine or feminized activity. In other words, translation has been associated with stereotypes of women’s traditional condition. Translation is subordinated to the source text, it depends on the source text that has the authority and the power of a husband in traditional matrimony, translation is always under the suspicion of treason and infidelity. If it is beautiful, it is unfaithful, and if it is faithful, it is bland and simple. On the other hand, historically, translation was an opportunity for the woman writer to confront the public space, to practise a sort of veiled authorship that was much more acceptable than overt authorship
SOCIO-CULTURAL DYNAMICS OF ROMANIAN THROUGH THE LENS OF RL2 LEARNERS
Get PDFSocio-cultural Dynamics of Romanian through the Lens of RL2 Learners. This research investigates the social and cultural dynamics of the Romanian language, with a particular emphasis on its status as a prestige language within the RL2 learner communities. Using a mixed-methods research design, the study combines quantitative data with qualitative data obtained from observations and a questionnaire addressed to RL2 learners. Shifting the role played by the Romanian language from being a ‘minor’ language to being a prestige language within an RL2 community of practice through cultural immersion underscores the significance of social interactions in the language learning process. By offering a detailed understanding of the Romanian language within its cultural milieu, this study seeks to contribute to the portrayal of the RL2 learner profile.
Dinamica socio-culturală a limbii române prin filtrul vorbitorilor de RL2. Această cercetare investighează dinamica socială și culturală a limbii române, cu accent pe statutul său de limbă de prestigiu în cadrul comunităților de vorbitori de RL2. Folosind o metodă mixtă de cercetare, studiul îmbină date cantitative cu date calitative obținute din observații și dintr-un chestionar adresat vorbitorilor de RL2. Schimbarea rolului jucat de limba română de la o limbă „minoră” la o limbă de prestigiu în cadrul comunităților de vorbitori de RL2 subliniază importanța interacțiunilor sociale în procesul de învățare a unei limbi străine. Oferind o înțelegere detaliată a limbii române în mediul său cultural, acest studiu urmărește să contribuie la portretizarea profilului vorbitorului de RL2.
Cuvinte-cheie: limbă de prestigiu, limbă „minoră”, RL2, comunitate, identitate socială
Article history: Received 14 January 2025; Revised 2 April 2025; Accepted 28 April 2025; Available online 10 June 2025; Available print 30 June 2025
PLURILINGUALISM AND ASSESSMENT. ROMANIAN AS A FOREIGN AND HERITAGE LANGUAGE
Get PDFPlurilingualism and Assessment. Romanian as a Foreign and Heritage Language. The study presents the revision process of two rating grids for the examinations provided through Babeș-Bolyai University – Romanian Cultural Institute Consortium for Testing Romanian as a Foreign Language. It focuses on how plurilingual competence was addressed as part of the revision. The first case presents revisions to the grid for written production, level A1. The revision process was corpus-based and started from the analysis of 352 texts produced in live exams. Reordering the grid criteria prioritised the criterion of efficacy (task fulfilment). In this study we focus on the criterion of accuracy, which operationalised the use of foreign (i.e., from an additional language) words by plurilingual test takers in their written production. This led to the addition of a new descriptor to the assessment instrument. The second case presents the revision process of the rating grid for spoken production, level B1, with a focus on the criterion of accuracy. The grid descriptor operationalising phonological control changed in order to reflect the influence of other languages on pronunciation, rhythm, accent, stress, and intonation. Intelligibility replaced the idealised native speaker as a reference point, in accordance with the new perspective reflected in the phonological control grid of the Common European Framework of Reference for Languages: Learning, Teaching, Assessment. Companion Volume (CEFR CV). The study presents how the adaptation of this grid was influenced by the significant number of test takers with Romanian as heritage language. These processes of rating-grid revision are considered a first step into what needs to be a robust effort to adapt language assessment to the plurilingual reality of speakers.
REZUMAT. Plurilingvism și evaluare. Româna ca limbă străină și ca limbă moștenită. Studiul prezintă procesul de revizuire a două grile de evaluare pentru examenele organizate de către Consorțiul Universitatea Babeș-Bolyai – Institutul Cultural Român pentru Testarea Românei ca Limbă Străină și se axează asupra modului în care competența plurilingvă a fost inclusă în procesul de revizuire. Primul caz prezintă revizuirea grilei pentru producții scrise, nivelul A1. Procesul de revizuire s-a bazat pe analiza unui corpus de 352 de texte produse ca parte a unor sesiuni de examinare. Una dintre consecințe a fost reordonarea criteriilor incluse în grilă, cu prioritizarea criteriului eficienței (îndeplinirea sarcinii). În acest studiu ne concentrăm asupra criteriului acurateței. Acesta include, în forma sa actuală, un nou descriptor care operaționalizează utilizarea de cuvinte din alte limbi în producțiile scrise ale candidaților. Al doilea caz prezintă procesul de revizuire a grilei de evaluare pentru producțiile orale, nivelul B1, cu accent asupra criteriului acurateței. Descriptorul care operaționalizează controlul fonologic în cadrul grilei a fost schimbat pentru a reflecta influența altor limbi asupra producției candidatului în ceea ce privește pronunția, ritmul, accentul și intonația. Inteligibilitatea a înlocuit modelul unui vorbitor nativ idealizat ca punct de referință, în acord cu noua perspectivă reflectată în grila pentru controlul fonologic din Cadrul European Comun de Referință pentru Limbi: Învățare, Predare, Evaluare. Volumul Companion. Studiul prezintă modul în care adaptarea acestei grile a fost influențată de numărul semnificativ de candidați care au româna ca limbă moștenită. Aceste procese de revizuire a grilelor de evaluare sunt considerate un prim pas pentru ceea ce ar trebui să fie un efort amplu de abordare a realității plurilingve a vorbitorilor în procesul de evaluare lingvistică.
Cuvinte-cheie: plurilingvism, competență plurilingvă, limbă moștenită, evaluare, grilă de evaluare
Article history: Received 13 February 2025; Revised 20 April 2025; Accepted 12 May 2025; Available online 10 June 2025; Available print 30 June 2025
Carmen Andrei, « Réflexions sur l’identité, la culture et la littérature belges », Paris, L’Harmattan, coll. « Des Hauts et Débats », 2022, 259 p.
Get PDFDans Réflexions sur l’identité, la culture et la littérature belges, Carmen Andrei, professeure à l’Université « Dunărea de Jos » de Galați, explore la singularité d’une littérature belge qui, loin de souffrir de sa position périphérique, en tire au contraire une force féconde. L’ouvrage constitue une synthèse de plusieurs années de recherches, réunissant des textes déjà publiés ou présentés lors de colloques, ici révisés et, pour certains, substantiellement remaniés. L’ensemble s’articule autour de la question identitaire, envisagée dans ses rapports à la culture et à la production littéraire belge.
Organisé en six parties, le volume s’ouvre sur un chapitre introductif intitulé « Prolégomènes aux questionnements identitaires dans la culture de la Belgique ». S’appuyant sur les travaux de Benoît Denis et Jean-Marie Klinkenberg, Carmen Andrei y propose une lecture synthétique de l’évolution de la littérature belge de langue française, articulée autour d’une périodisation tripartite qui met en lumière la relation ambivalente qu’entretiennent les écrivains belges avec le centre parisien – une rélation oscillant entre dénégation et intégration
On reachability and controllability for a Volterra integro-dynamic system on time scales
Get PDFThe paper studies and relates the notions of reachability and controllability for the Volterra integro-dynamic system on time scales. More specifically, we obtain necessary and sufficient conditions for reachability and controllability. In addition, we obtain an equivalence between the concepts of reachability and controllability studied.
Mathematics Subject Classification (2010): 45D05, 34N05, 93B03, 93B05.
Received 01 March 2024; Accepted 20 March 2024
Metric conditions, graphic contractions and weakly Picard operators
Get PDFIn the paper of S. Park (Almost all about Rus-Hicks-Rhoades maps in quasi-metric spaces, Adv. Theory Nonlinear Anal. Appl., 7(2023), No. 2, 455-472), the author solves the following problem: Which metric conditions imposed on f imply that f is a graphic contraction? In this paper we study the following problem: Which metric conditions imposed on f imply that f satisfies the conditions of Rus saturated principle of graphic contractions?
Mathematics Subject Classification (2010): 54H25, 47H10, 54C60.
Received 23 October 2023; Accepted 11 March 2024
On the stabilization of a thermoelastic laminated beam system with microtemperature effects
Get PDFThe present article investigates a one-dimensional thermoelastic laminated beam with microtemperature effects. Using the energy method, we prove in the case of zero thermal conductivity that the unique dissipation due to the microtemperatures is strong enough to exponentially stabilize the system if and only if the wave speeds of the system are equal. Our result is new and improves previous results in the literature.
Mathematics Subject Classification (2010): 35B40, 74F05, 93D15, 93D20.
Received 22 October 2024; Accepted 28 February 2025