1. Evaluating the psychometric properties of the 7C vaccination readiness scale : evidence from SloveniaMitja Vrdelja, Stefani Branilović, Monika Lamot, Andrej Kirbiš, 2026, izvirni znanstveni članek Povzetek: Vaccine hesitancy remains a major global public health challenge. Psychological models, such as the 7C vaccination readiness scale, aim to identify key psychological determinants of vaccine uptake. While the scale has shown validity in various cultural contexts, its psychometric properties have not yet been evaluated in Slovenia. Methods This study assessed the psychometric properties, convergent validity, and criterion validity of the Slovenian version of the 7C scale using a representative sample of 1,350 adults via confirmatory factor analysis (CFA), correlation coefficients, and regression analyses. Results The bifactor model showed mixed psychometric properties. CFA revealed a weak model fit, with two items showing inadmissible estimates; these were removed. The revised model showed improved estimation and acceptable, though still suboptimal, fit indices. Convergent validity was supported by significant correlations between the general vaccination readiness factor and conspiracy beliefs, while individual components showed weaker associations. Criterion validity analyses showed that the general factor was the strongest predictor of vaccination intention, with calculation and compliance also contributing. The 7C model explained more variance in vaccination intention than the 5C model, suggesting greater utility. Despite structural limitations, the scale demonstrates practical value and offers recommendations for refinement. Conclusions The Slovenian version of the 7C scale proved to be a valuable tool for predicting vaccination intention. The general factor was a robust predictor, and calculation and compliance showed additional validity. However, components like complacency and constraints need revision to improve model fit. With refinement, the 7C scale holds promise for research and public health applications across contexts.
Ključne besede: vaccine hesitancy, 7C vaccination readiness scale, psychometric properties
Objavljeno v DiRROS: 10.06.2026; Ogledov: 14; Prenosov: 12
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2. Chemical ordering and non-linear magnetic behavior : enhancing magnetocaloric effect in FeMnNiGeSi high-entropy materialsVincent Fournée, G. Lengaigne, Pascal Boulet, Sorour Semsari Parapari, Sergej Ražnjević, Sašo Šturm, Franca Albertini, 2026, izvirni znanstveni članek Povzetek: High-entropy alloys (HEAs) offer opportunities to discover new functional materials with combination of properties not reached in other classes of materials. Here we report a detailed investigation of the structure, magnetic and magnetocaloric properties of some high entropy materials in the FeMnNiGeSi quinary system. Our findings indicate the persistence of partial chemical ordering, with transition metal atoms and metalloids preferentially occupying specific crystallographic sites. This ordering is further supported by ab initio total energy calculation. In turn, the magnetic moment - carried out mainly by Fe and Mn - exhibits a strong dependence on the crystallographic sites occupied by these magnetic atoms. By exploring the chemical landscape, we observed highly non-linear magnetic behavior upon Mn doping, resulting in an isothermal entropy change (ΔSm) as high as 35 Jkg−1K−1 in 5 T, while the transition temperature can be tuned in the range from 160 to 263 K, approaching room temperature. These outstanding performances suggest that rare-earth free high entropy materials can rival conventional magnetocaloric materials. Additionally, we find that the first-order magnetostructural transition can evolve into a second-order magnetic transition through chemical tuning. This opens the possibility of discovering similar materials near the boundary between first- and second-order transitions, with vanishing hysteresis - potentially addressing their mechanical instability issue.
Ključne besede: high-entropy alloys, magnetocaloric properties
Objavljeno v DiRROS: 04.06.2026; Ogledov: 71; Prenosov: 55
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3. Enhanced hemocompatibility and cytocompatibility of stainless steelMetka Benčina, Niharika Rawat, Domen Paul, Janez Kovač, Katja Lakota, Polona Žigon, Veronika Kralj-Iglič, Aleš Iglič, Ita Junkar, 2024, izvirni znanstveni članek Ključne besede: surface modifications, electrochemical anodization, non-thermal plasma treatment, altered surface properties, blood platelets, human coronary stents
Objavljeno v DiRROS: 03.06.2026; Ogledov: 75; Prenosov: 81
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5. MWCNT-driven modulation of thermal and flow properties in PTT/PP polymer systemsAjitha A. Ramachandran, Arunima Reghunadhan, P. S. Sari, Miroslav Huskić, Sabu Thomas, 2026, izvirni znanstveni članek Povzetek: The thermal and viscoelastic performance of polymer blends is decisive for their deployment in advanced engineering and electronic applications. Here, we report a systematic investigation of immiscible poly(trimethylene terephthalate) (PTT)/polypropylene (PP) blends reinforced with multiwalled carbon nanotubes (MWCNTs). While the incorporation of MWCNTs did not markedly alter the thermal degradation profiles, it significantly modified the viscoelastic behavior by inducing a constrained polymer region within the PTT phase. Quantitative analysis of filler dispersion effectiveness, entanglement density, reinforcing efficiency, and constrained volume provides new insights into nanotube–matrix interactions. Rheological results revealed a terminal-to-nonterminal transition with increasing nanotube content, confirming percolated network formation at low filler loadings. These findings establish clear structure–property correlations that extend beyond qualitative descriptions, offering a predictive framework for tailoring immiscible blends through nanofiller engineering. Such insights highlight the potential of PTT/PP/MWCNT systems in functional applications, including lightweight structural components and conductive composites for electronics.
Ključne besede: polymer blends, thermal properties, viscoelastic properties
Objavljeno v DiRROS: 09.04.2026; Ogledov: 151; Prenosov: 99
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6. Cold-bonded artificial aggregate : processing, performance and perspectivesJehangeer Raza, Vilma Ducman, Narinder Singh, Francesco Colangelo, Priyadharshini Perumal, Ilenia Farina, 2026, pregledni znanstveni članek Povzetek: This article reviews cold-bonded artificial aggregates (CBAAs) produced from industrial wastes such as bottom ash, fly ash, slags, sludges, and other waste-derived precursors. It provides a detailed examination of the factors influencing their performance and the treatments used to enhance their properties. CBAAs are broadly classified into two groups based on binder type: cement-based aggregates and alkali-activated aggregates (AAAs). Cementbased CBAAs develop their required properties through hydration and pozzolanic reactions. Reported compressive strengths typically range from 1 to 12 MPa, while water absorption ranges from 10 % to 25 %. These properties vary significantly with precursor type, mix proportions, curing conditions, and surface treatments. In AAAs, cement is replaced by an alkaline binder to provide a more environmentally sustainable alternative. The properties of AAAs result from the formation of N-A-S-H or C-A-S-H gels, with commonly reported compressive strengths between 2 and 8 MPa. Performance can be improved by selecting the appropriate precursor type and optimizing the ratio of precursor to alkaline activator. Carbonation further enhances the properties of CBAAs by reducing porosity by up to 30 %, increasing compressive strength by a factor of two to three, and capturing CO₂ through the formation of CaCO₃. Environmental assessments indicate that converting industrial waste into aggregates can lower greenhouse gas emissions and keep leaching parameters within regulatory limits. This review also identifies ongoing challenges, such as precursor variability, energy demand, and scaling production, and outlines future directions to support the commercial deployment of CBAAs.
Ključne besede: cold bonded artificial aggregate, recycling, properties, perspective
Objavljeno v DiRROS: 09.03.2026; Ogledov: 254; Prenosov: 197
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7. Enhanced mechanical performance and refined intermetallic layer in underwater friction-stir-welded AA5083–Cu dissimilar jointsPattanam Ramamoorthy Kannan, N. Premkumar, M. Arul, S. Dinesh, 2026, izvirni znanstveni članek Ključne besede: underwater friction stir welding, AA5083 aluminum, pure copper, dissimilar joints, intermetallic compounds, mechanical properties, microstructural refinement, SEM analysis
Objavljeno v DiRROS: 04.03.2026; Ogledov: 345; Prenosov: 241
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8. Microstructural evolution and its impact on mechanical and corrosion performance of 316L ODS steels processed by mechanical alloying and pulse plasma sinteringAnna Dobkowska, Kalyan Das, Mirosław Jakub Kruszewski, Aleksandra Zielińska, Marlene González, Bogusława Adamczyk-Cieślak, Jiří Kubásek, Jan Pokorný, David Nečas, Črtomir Donik, Irena Paulin, Kamil Majchrowicz, Jarosław Mizera, Matjaž Godec, 2026, izvirni znanstveni članek Ključne besede: ODS steels, austenitic steels, corrosion, mechanical properties
Objavljeno v DiRROS: 02.03.2026; Ogledov: 324; Prenosov: 284
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9. Deep learning-based prediction and experimental evaluation of mechanical properties in basalt-fiber-SiC-reinforced hybrid epoxy compositesSM Ravikumar, JM Prabhudass, A Adinaryanan, N. Yuvaraj, S. Dinesh, Elakkiya Azhagar, 2026, izvirni znanstveni članek Ključne besede: basalt fiber, silicon carbide filler, mechanical properties, deep neural network, hybrid composite for structural applications
Objavljeno v DiRROS: 26.02.2026; Ogledov: 456; Prenosov: 233
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10. Understanding bio-based polymers : a study of origins, properties, biodegradation and their impact on health and the environmentSabina Kolbl Repinc, Blaž Stres, Mirica Karlovits, Igor Karlovits, Petra Jerič, Ondrej Panák, Anja Verbič, Blaž Likozar, Uroš Novak, 2025, pregledni znanstveni članek Ključne besede: bio-based polymers, biopolymers, degradation, environmental impact, functional material properties, safe and sustainable by design
Objavljeno v DiRROS: 23.02.2026; Ogledov: 467; Prenosov: 311
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