Search in Publications
Found 6342 publications
Correction: A novel numerical investigation of fiber Bragg gratings with dispersive reflectivity having polynomial law of nonlinearity (Scientific Reports, (2025), 15, 1, (31110), 10.1038/s41598-025-12437-1)
Publication Name: Scientific Reports
Publication Date: 2025-12-01
Volume: 15
Issue: 1
Page Range: Unknown
Description:
Correction to: Scientific Reportshttps://doi.org/10.1038/s41598-025-12437-1, published online 24 August 2025 The original version of this Article contained an error in the name of author Mansour Shrahili, which was incorrectly given as Mansour Shrahilii. The original Article has been corrected.
Open Access: Yes
Application of whey protein-based edible coatings containing lemon peel powder and extract to maintain the antioxidant properties of table grapes during ambient storage
Publication Name: Food and Humanity
Publication Date: 2025-12-01
Volume: 5
Issue: Unknown
Page Range: Unknown
Description:
Table grapes are among the most widely consumed fruits worldwide; however, their shelf life is limited by water loss, microbial spoilage, and degradation of antioxidants. This study examined the effects of whey protein-based edible coatings enriched with 1 % lemon peel powder (LP1), 2 % lemon peel powder (LP2), 1 % lemon peel extract (LE1), or 2 % lemon peel extract (LE2) on the quality of Red Globe table grapes during 14-day ambient storage. The highest weight loss (33.2 %) occurred in uncoated samples, while LP1 had the lowest (20.4 %), indicating improved moisture retention. The initial pH of uncoated table grapes (3.63) increased to 4.23 by the end of storage. All coatings slowed this increase, resulting in final pH values ranging from 4.03 to 4.10. Regarding antioxidant-related parameters, LP1 showed higher total polyphenol content (TPC), ascorbic acid content, antioxidant activity (DPPH assay), and total monomeric anthocyanin (TMA) by 43.7 %, 25.0 %, 24.1 %, and 10.1 %, respectively, compared to uncoated samples. Among extract-enriched coatings, only LE1 maintained significantly higher antioxidant activity (75.8 %), while TPC and ascorbic acid levels were comparable to those of the uncoated samples. TMA content in LE-treated table grapes (23.6–22.5 mg CGE/100 g) was lower than in uncoated samples (26.7 mg CGE/100 g). Multivariate analyses (PCA, HCA) revealed distinct clustering between coated and uncoated samples, with LP1 showing the most pronounced separation. These results indicate that LP1 treatment may help reduce weight loss and support antioxidant stability, offering a potentially sustainable postharvest strategy for table grapes.
Open Access: Yes
Structural behavior of built-up I-shaped cold-formed steel beams with edge-stiffened holes, unstiffened holes, plain webs, and batten reinforcement
Publication Name: Results in Engineering
Publication Date: 2025-12-01
Volume: 28
Issue: Unknown
Page Range: Unknown
Description:
Perforated cold-formed steel (PCFS) back-to-back channel beams are increasingly gaining popularity in the building sector due to their numerous advantages and economic benefits. Notably, their lightweight nature allows for easier handling and installation, while the holes in PCFS beams facilitate the accommodation of utilities such as electrical and plumbing installations. In this study, a geometrically and materially nonlinear finite element model (FEM) was developed and validated using experimental data from existing literature. The validation results indicated a strong correlation, with the ratios of FEM and Direct Strength Method (DSM) predictions to experimental outcomes being 1.007 and 0.945, respectively. This demonstrates a significant agreement among experimental data, FEM analysis, and moment capacity estimations based on American Iron and Steel Institute (AISI) Standards, although AISI predictions were found to underestimate moment capacities by approximately 5.5 %. Following model validation, an extensive parametric study involving 192 FEM simulations was conducted to evaluate the influence of hole size, hole geometry, edge stiffeners, and batten reinforcements on the moment-carrying capacity of built-up I-shaped CFS beams. The findings indicate that, in comparison with beams having plain webs, the presence of web openings leads to a reduction in moment capacity of approximately 10 %, 9 %, 9 %, and 6 % for circular, slotted, square, and rectangular holes, respectively. Furthermore, the results demonstrate that the inclusion of stiffeners around web openings, together with batten reinforcement, markedly improves the structural performance of PCFS built-up beams. In particular, the maximum enhancement in moment capacity of beams with batten reinforcement and edge-stiffened holes, relative to those with unstiffened holes, is about 9 %, 10 %, 13 %, and 14 % for circular, rectangular, square, and slotted holes, respectively. Overall, the findings offer valuable insights into the structural behavior of perforated built-up CFS beams and emphasize the effectiveness of web hole stiffening and batten reinforcement strategies in mitigating strength reductions caused by web perforations.
Open Access: Yes
The potential of the P-graph for optimizing public service processes
Publication Name: Clean Technologies and Environmental Policy
Publication Date: 2025-12-01
Volume: 27
Issue: 12
Page Range: 8461-8473
Description:
The European Union set out several directives and standards for governments and local authorities on environmental policy issues in the planning and management of public services. Public service provisioning is subject to both traditional expectations (such as customer-friendliness and efficiency) and new environmental stewardship and sustainability expectations. This paper analyzes public service processes, particularly the university enrolment process. Our analysis used public service models (Service Blueprinting, Business Process Modeling, Process Chain Network) and a mathematical model (P-graph). Our research aims to analyze the university enrolment process and its efficiency, considering sustainability aspects and expectations and identifying the points that can be modified and improved to make it more efficient, sustainable, qualitatively positive, and economical. According to our research, school administrators are overburdened during the enrolment process, often resulting in overtime work and a high turnover ratio. Our results clearly show the high inefficiency of this administrative process, as administrators can only partially meet their expected labor targets during their regular working hours. We found that the university enrolment process can be improved and made more efficient and sustainable. Using the P-graph, we have found the process’s optimal path and resource requirements in a way that was not feasible with previous models. Heartened by these results, we propose introducing and applying the P-graph as a new model to study other public service processes.
Open Access: Yes
Evaluating the Impact of Aggregation Operators on Fuzzy Signatures for Robot Path Planning
Publication Name: Sensors
Publication Date: 2025-12-01
Volume: 25
Issue: 23
Page Range: Unknown
Description:
This study investigates the impact of different aggregation operators (commonly referred to as fuzzy operators) on the application of fuzzy signatures. Fuzzy signatures are specialized multidimensional data structures that symbolically represent data. As a use case, the study focuses on robot environment representation and path planning, presenting the results obtained by applying various aggregation operators including (Formula presented.), (Formula presented.), (Formula presented.) (Formula presented.) and (Formula presented.) (Formula presented.) on the normalized values obtained from the robot sensors. The comparison highlights their effects on the computational load and path lengths of the path planning task. The findings reveal that the most efficient aggregation operator, in terms of computational load and the path length, is the (Formula presented.) (Formula presented.) aggregation operator. Specifically, the (Formula presented.) (Formula presented.) consistently yielded the shortest paths (as low as 22 nodes) and the lowest execution times (down to 0.0913 s), demonstrating superior efficiency compared to the (Formula presented.) operator, which resulted in path lengths up to 34 nodes and execution times reaching 0.1923 s. This represents an improvement of up to 35.3% reduction in path length and 52.5% reduction in execution time when comparing the (Formula presented.) (Formula presented.) to the (Formula presented.) operator based on observed extreme values. Furthermore, this work provides the first empirical comparison of fuzzy aggregation operators specifically for fuzzy signature-based mobile robot path planning.
Open Access: Yes
DOI: 10.3390/s25237342
The Impact of Terrain Sampling Density on 5G NR-V2X Downlink Channel Modeling Using Various Propagation Models at the 3.6 GHz Band
Publication Name: Radioengineering
Publication Date: 2025-12-01
Volume: 34
Issue: 4
Page Range: 603-623
Description:
This study investigates the sensitivity of radio wave propagation models to terrain sampling density in a 5G New Radio Vehicle-to-Everything downlink scenario at 3.6 GHz. Four widely used models are analysed: the empirical ITU-R P.1546-6, the deterministic Parabolic Equation Method, and the hybrid ITU-R P.1812-6 and ITU-R P.452-16. Real terrain profiles from Hungary are considered at multiple resolutions, allowing a systematic assessment of how accuracy degrades as the representation of terrain becomes coarser. The analysis reveals a consistent ranking across environments: the empirical model is the least affected by resolution changes, while deterministic and hybrid methods are significantly more sensitive. To interpret these differences, the study introduces a spectral complexity measure of terrain profiles and establishes its strong relationship with error growth through regression analysis. This provides a novel framework for explaining and quantifying the impact of terrain detail on model behaviour. The findings highlight both the methodological contribution of linking spectral complexity to propagation accuracy and the practical implications for optimising the trade-off between computational efficiency and prediction reliability in vehicular network planning.
Open Access: Yes
Companies’ ESG performance under soft and hard regulation environment
Publication Name: Discover Sustainability
Publication Date: 2025-12-01
Volume: 6
Issue: 1
Page Range: Unknown
Description:
The growing integration of Environmental, Social, and Governance (ESG) factors into corporate decision-making and investment strategies has heightened the need for reliable and comparable ESG ratings. However, substantial divergence across rating agencies—driven by inconsistent methodologies, weighting schemes, and disclosure practices—poses challenges for investors, firms, and regulators. Addressing a key gap in the literature, this study investigates how regulatory environments influence ESG rating divergence by comparing hard, soft, and unregulated frameworks across five major economies: the United States, China, Japan, Germany, and India. ESG ratings were collected from Sustainalytics, S&P Global, and Refinitiv for the top 50 publicly listed companies in each country. The divergence was measured using absolute score differences between agencies, and statistical tests and cluster analysis were conducted to evaluate the impact of regulation on rating consistency. The results indicate that countries with strong, mandatory ESG disclosure regimes—such as Germany's CSRD and India’s BRSR—exhibit significantly lower levels of rating divergence, while unregulated markets like the USA and China display the highest discrepancies. Notably, Japan’s soft-law approach achieves alignment levels comparable to those of hard-law environments, emphasizing the role of regulatory enforcement. These findings reinforce both signaling and agency theories by demonstrating how regulatory oversight and transparency reduce information asymmetry and promote stakeholder trust. The study highlights the importance of direct supervision of ESG rating agencies and supports global harmonization of ESG disclosure standards as a means to enhance market efficiency and comparability.
Open Access: Yes
Blockchain and sustainable finance as enablers of regenerative finance: a bibliometric and thematic review
Publication Name: Discover Sustainability
Publication Date: 2025-12-01
Volume: 6
Issue: 1
Page Range: Unknown
Description:
Blockchain technology, sustainable finance, and regenerative finance are increasingly intersecting as vital research frontiers in addressing global environmental and social challenges. This study offers a comprehensive bibliometric and thematic analysis of the scholarly landscape at this intersection, aiming to illuminate how these domains are evolving and converging. Drawing on a curated dataset of 78 peer-reviewed articles sourced from Scopus and Web of Science, the research integrates quantitative bibliometric mapping with qualitative thematic insights to capture both the structural and conceptual dimensions of the field. The analysis employs co-word mapping to explore patterns of keyword co-occurrence and identify key intellectual linkages, thematic evolution analysis to track the development of major research themes over time, and factorial correspondence analysis to visualize the relationships among concepts within a multidimensional space. Findings reveal a rapidly growing and increasingly interdisciplinary body of work, with blockchain and sustainable finance serving as central pillars, while regenerative finance, though still emerging, shows strong conceptual potential. Notably, the appearance of AI-related themes suggests a nascent yet promising integration of intelligent systems with sustainability-focused finance. Together, these insights offer a nuanced understanding of the field’s current dynamics and lay the groundwork for future research on regenerative, technology-enabled financial systems.
Open Access: Yes
A Disordered Eating Screen For Athletes magyar változata (DESA-6H) konvergens validitásának vizsgálata – Egy pilot study eredményei [Convergent validity of the Hungarian version of the Disordered Eating Screen For Athletes (DESA-6H) – Results of a pilot study]
Publication Name: Mentalhigiene Es Pszichoszomatika
Publication Date: 2025-12-01
Volume: 26
Issue: 4
Page Range: 242-243
Description:
A Disordered Eating Screen For Athletes magyar változata (DESA-6H) konvergens validitásának vizsgálata – Egy pilot study eredményei [Convergent validity of the Hungarian version of the Disordered Eating Screen For Athletes (DESA-6H) – Results of a pilot study] Mentálhigiéné és Pszichoszomatika, 26(3), 123–137. https://doi.org/10.1556/0406.2025.00074 A fenti cikk Mellékletében másolási hiba folytán két kérdés nem megfelelően jelent meg. A 136. oldalon a kérdések felsorolásánál a 2. kérdés két válaszlehetőség sorrendjét felcseréltük.
Open Access: Yes
