661. Electrocatalytic trends of different Cantor entropy alloys for alkaline and acidic hydrogen-evolution reactionsBarbara Ljubec Božiček, Bor Arah, Monika Kušter, Iztok Naglič, Boštjan Markoli, Maja Ponikvar-Svet, Lara Einfalt, Miran Čeh, Belisa Alcantara Marinho, 2024, original scientific article Abstract: Medium- and high-entropy alloys (MEAs and HEAs) are the basis of unique electrocatalysts for hydrogen-evolution reactions (HERs) due to their tunable chemical compositions and microstructures. Here, various Cantor MEAs (CoFeNi, CoFeNiMn, CoFeNiCr) and a HEA (CoFeNiMnCr) made up of affordable non-noble transitional metals with different structures (primary matrix and secondary phases, grain sizes, lattice parameters) were successfully synthesized with an inert-gas melting process. A close correlation was established between their physicochemical properties (elemental composition, microstructure, crystal structure) and the hydrogen-binding ability of the elements in the alloy on the electrocatalytic HER activity and stability in alkaline and acidic media. Advanced performances of electrocatalysts toward HERs were revealed in a specially designed electrochemical cell. Effectively identifying these electrocatalytic trends lays the groundwork for the strategic design of multi-component alloy electrocatalysts for practical HERs.
Keywords: water-spliting, hydrogen-binding energy, medium-entropy alloys, high-entropy alloys, spillover effect
Published in DiRROS: 10.11.2025; Views: 200; Downloads: 91
 Full text (4,83 MB)
This document has many files! More... |
662. Establishment of ELISA-comparable moderate and high thresholds for anticardiolipin and anti-β2 glycoprotein I chemiluminescent immunoassays according to the 2023 ACR/EULAR APS classification criteria and evaluation of their diagnostic performancePolona Žigon, Nika Boštic, Aleš Ambrožič, Žiga Rotar, Elizabeta Blokar, Manca Ogrič, Saša Čučnik, 2025, original scientific article Abstract: Objectives: Recently published 2023 ACR/EULAR APS classification criteria emphasize the importance of quantifying single-, double-, and triple-antiphospholipid antibody positivity, distinguishing between IgG and IgM isotypes, and delineating moderate/high levels of anticardiolipin (aCL) and anti-β2 glycoprotein I (anti-β2GPI) antibodies. We aimed to establish clinically important moderate/high thresholds for aCL and anti-β2GPI IgG/IgM chemiluminescent immunoassays (CLIA), in particular QUANTA Flash, comparable to our in-house ELISAs used for over two decades, and to evaluate their diagnostic performance. Methods: QUANTA Flash CLIA and in-house ELISAs were used to measure aCL and anti-β2GPI IgG/IgM. Moderate thresholds for QUANTA Flash CLIA were determined using a non-parametric approach, calculating a 99th percentile on serum samples from 139 blood donors, and by mirroring the diagnostic performance of in-house ELISA on 159 patient samples. Results: Thresholds for QUANTA Flash CLIA achieving diagnostic performance equivalent to in-house ELISAs were 40 CU for moderate and 80 CU for high levels for aCL and anti-β2GPI IgG and IgM. The assays showed good qualitative agreement, ranging from 76.10 to 91.19 %. When considering in-house ELISA results, 14 out of 80 (17.5 %) patients did not fulfill the new ACR/EULAR laboratory classification criteria, while 27 out of 80 (33.8 %) did not when considering QUANTA Flash CLIA results. Conclusions: We determined moderate and high thresholds for aCL and anti-β2GPI IgG and IgM detected with QUANTA Flash CLIA, aligning with long-established in-house ELISA thresholds. These thresholds are crucial for seamlessly integrating of the new 2023 ACR/EULAR classification criteria into future observational clinical studies and trials.
Keywords: anti-β2GPI, anticardiolipin, antiphospholipid syndrome, classification criteria
Published in DiRROS: 10.11.2025; Views: 181; Downloads: 92
Full text (1,19 MB)
This document has many files! More... |
663. Influence of natural variability and anatomical misalignment on the correlation between segmental myocardial edema and strain in acute myocarditisKanza Awais, Lana Kralj, Andreja Černe Čerček, Borut Kirn, 2025, original scientific article Abstract: Background: Acute myocarditis (AM) affects myocardial structure and function, assessed by cardiac magnetic resonance late gadolinium enhancement (CMR-LGE) and speckle tracking echocardiography (STE), respectively; however, the correlation between the two techniques at the segmental level is inconsistent. We studied natural heterogeneity and anatomical orientation mismatch as potential causes of correlation discrepancy. Methods: A total of 30 AM patients underwent left ventricle LGE-CMR and STE measurement, acquiring 18 segmental values depicting edema extent and peak longitudinal strain, respectively. Baseline segmental correlation was compared to average patient segmental correlation and to segmental correlation after spatial resolution reduction achieved by averaging adjacent segments in four successive iterations, where the degree of spatial resolution reduction was evaluated based on the relative decrease in segmental standard deviation. Results: Baseline segmental correlation was weak, i.e., r = 0.24 (p < 0.05) but improved in fitted SLGE and SpLS baseline correlation (r0 = 0.44, p < 0.05) and in average patient correlation (r = 0.55, p < 0.05). Iterative spatial resolution reduction increased the correlation to r1 = 0.49 and r2 = 0.51 and then decreased it to r3 = 0.11 (p < 0.05) and r4 = 0.07 (p > 0.05), with corresponding decreases in segmental standard deviation relative to baseline from σ0 = 12.87 to σ/σ0 = 0.68, 0.51, 0.38, and 0.29 in SLGE values and σ0 = 4.77 to σ/σ0 = 0.57, 0.41, 0.31, and 0.23 in SpLS. Conclusions: Improved correlation in average patients is associated with natural heterogeneity, which indicates a need to develop more robust indicators of ventricular function. The improved correlation in moderate spatial resolution reduction indicates a potential solution for anatomic orientation mismatch between CMR-LGE and STE techniques.
Keywords: acute myocarditis, anatomical orientation mismatch, cardiac magnetic resonance, late gadolinium enhancement, natural heterogeneity, segmental peak systolic strain, spatial resolution reduction, speckle tracking echocardiography
Published in DiRROS: 10.11.2025; Views: 173; Downloads: 85
Full text (3,07 MB)
This document has many files! More... |
664. Composition of bread samples in Slovenian food supply : Dietary fibre datasetHristo Hristov, Igor Pravst, 2025, complete scientific database of research data Abstract: This dataset reports the dietary fibre content of 58 bread samples taken from Slovenian food supply in 2022. Samples were purchased in Slovenian retailers and bakeries. Sample includes commonly consumed bread types. Bread types were classified according to the applicable national regulation, with additional model-based verification to identify products that did not meet wholegrain criteria. The dataset provides a robust basis for evaluating dietary fibre levels across bread categories and supporting nutrition and publich health policies.
Keywords: Bread samples, bread types, dietary fibre
Published in DiRROS: 10.11.2025; Views: 285; Downloads: 79
 Full text (140,73 KB) |
665. Hydrophilization of rice seeds by plasma treatments – super-hydrophilic surface finish and hydrophobic recoveryAlenka Vesel, Anca Macovei, Alma Balestrazzi, Dane Lojen, Gregor Primc, Rok Zaplotnik, Nives Ogrinc, Marián Lehocký, Miran Mozetič, 2025, original scientific article Abstract: The hydrophobic character of rice seeds protects them from quick water adsorption and, thus, premature germination. This property is, however, a drawback in modern agriculture, where rapid and uniform germination represents a high-quality trait. A method for rapid hydrophilization of the Lomello variety of rice is presented. The rice seeds were treated with low-pressure gaseous plasma to tailor the wettability. The treatment of seeds with hulls with oxygen plasma afterglow enabled the super-hydrophilic surface finish within 10 ms. Such extremely fast hydrophilization was attributed to irreversible surface oxidation by neutral oxygen atoms whose flux onto the seeds was approximately 3 × 1023 m−2s−1. Dehulled seeds were made super-hydrophilic by subsequent treatments with hydrogen and oxygen plasma, and the required dose of O atoms was between 2 × 1023 and 6 × 1024 m−2. Larger doses caused a loss of the super-hydrophilicity. Hydrophilization kinetics is proposed and supported by measuring surface wettability, morphology, and composition using various techniques. The hydrophobic recovery of seeds with hulls is marginal within the first few days after plasma treatments, but dehulled seeds lose the super-hydrophilic surface finish within a few minutes after the plasma treatment when stored at ambient conditions.
Keywords: rice seed, water adsorption, surface treatment, wettability, super-hydrophilicity
Published in DiRROS: 10.11.2025; Views: 176; Downloads: 89
Full text (13,19 MB)
This document has many files! More... |
666. Defluorination of polytetrafluoroethylene surface by hydrogen plasmaAlenka Vesel, Dane Lojen, Rok Zaplotnik, Gregor Primc, Miran Mozetič, Jernej Ekar, Janez Kovač, Marija Gorjanc, Manja Kurečič, Karin Stana-Kleinschek, 2022, independent scientific component part or a chapter in a monograph Keywords: polytetrafluoroethylene, fluorine depletion, hydrogen plasma, VUV radiation, surface modification, hydrophilic
Published in DiRROS: 10.11.2025; Views: 193; Downloads: 76
Full text (4,41 MB)
This document has many files! More... |
667. |
668. Changes in the sodium content in branded foods in the Slovenian food supply (2011–2020)Sanja Krušič, Hristo Hristov, Maša Hribar, Živa Lavriša, Katja Žmitek, Igor Pravst, 2023, original scientific article Keywords: food reformulation, sodium, salt, food policy, Europe, Slovenia
Published in DiRROS: 10.11.2025; Views: 161; Downloads: 80
Full text (1,57 MB)
This document has many files! More... |
669. Assessment of the use of food supplements by military personnel : study protocol and resultsIgor Pravst, Živa Lavriša, Hristo Hristov, Maša Hribar, Sanja Krušič, Katja Žmitek, Anita Kušar, Katja Zdešar Kotnik, Petra Golja, Anja Čibej, Larisa Pograjc, 2023, original scientific article Published in DiRROS: 10.11.2025; Views: 163; Downloads: 81
Full text (1,25 MB)
This document has many files! More... |
670. Comparative and population genomics of buckwheat species reveal key determinants of flavor and fertilityKaixuan Zhang, Yugi He, Xiang Lu, Yaliang Shi, Hui Zhao, Xiaobo Li, Jinlong Li, Yang Liu, Yinan Ouyang, Yu Tang, Zlata Luthar, Mateja Germ, Ivan Kreft, Vladimir Meglič, Barbara Pipan, 2023, original scientific article Keywords: genomics, genomic resources, genome sequencing, common buckwheat, genomics-assisted breeding, flavonoid content, flower morphology, buckwheat species, genetic gain, agronomic traits, nutritional quality traits
Published in DiRROS: 10.11.2025; Views: 179; Downloads: 83
Full text (10,28 MB)
This document has many files! More... |
