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Publications - 6515

Measurement and Analysis of MPT Multipath Throughput in Wire Channels

Naseer A. Jabbar G. Lencse

Publication Name: International Conference on Electrical Computer Communications and Mechatronics Engineering Iceccme 2022

Publication Date: 2022-01-01

Volume: Unknown

Issue: Unknown

Page Range: Unknown

Description:

There is a significant growth in the use of the current intelligent and portable devices such as smartphones, laptops, and tablets that result in several network interfaces and various potential paths for communication. However, the mechanism used today via the Internet uses only one path for a communication session. This paper presents multipath throughput tests for the MPT network layer multipath communication library, a novel and promising solution for real-time transmission based on GRE-in-UDP encapsulation that provides an IPv4 or IPv6 tunneling (logical interface). We investigate the efficiency of channel capacity aggregation of MPT in dealing with physical paths via wired channels and test the cases when the physical paths have the same speed or radically different speeds.

Open Access: Yes

DOI: 10.1109/ICECCME55909.2022.9987956

A New Approach to Breast Specimen Orientation: Avoiding Pitfalls with the Specimen Plate Concept

Dániel Kollár András Drozgyik Tamás F. Molnar György Kovács Tamás Szabó

Publication Name: Current Oncology

Publication Date: 2024-08-01

Volume: 31

Issue: 8

Page Range: 4589-4598

Description:

Accurate specimen marking is crucial during breast cancer surgery to avoid misorientation, which can lead to inadequate re-excision and tumor recurrence. We studied the marking methods at various breast cancer centers to create a tool that would prevent specimen misorientation. An online questionnaire was used to survey marking procedures at major breast cancer centers in Hungary, and a tool was developed using a troubleshooting method. Twelve out of twenty units responded (60%). Nine use an institutionally standardized marking system. Less than half of the surgical teams found specimen mammograms to be unambiguous. In more than 70% of departments, pathologists were uncertain about breast specimen orientation. Ambiguous marking methods caused orientation errors in half of the cases, while unclear marking directions caused the rest. Most pathologists (85%) and surgeons (75%) believed that coronal plane specimen mammography would help solve the problem. A plastic specimen plate has been developed to anchor breast tissue to a coronal breast scheme as seen in mammography images, providing clear localization information throughout the surgical process. There is a lack of standardization in breast specimen orientation and marking in Hungary. An optimized orientation toolkit is being developed to ensure consistent interpretation of specimen mammograms by surgeons and pathologists.

Open Access: Yes

DOI: 10.3390/curroncol31080342

Anthropometric and Physiological Characteristics of Young Elite Hungarian Motocross Riders in Motocross Competitions

Ferenc Ihász Robert Podstawski István Barthalos László Suszter László Kerner Zsolt Katona Bálint

Publication Name: Physical Activity Review

Publication Date: 2024-01-01

Volume: 12

Issue: 1

Page Range: 47-58

Description:

Background: Motocross riders’ performance is highly dependent on the characteristics of the motorcycles and the skills of the riders, and the actual environmental conditions. This study aims to describe the differences in anthropometric and physiological characteristics between internationally ranked adolescent males and nationally ranked motorcross (MX) peer competitors; Methods: Data obtained from young riders (n=14) were divided into internationally ranked G1 (n=5) and - nationally ranked G2 (n=9) young MX riders. We determined body composition and cardiorespiratory variables, and measured heart rate and movement-related data with Polar Team Pro system during the race; (3) Results: Blood lactate concentrations were evaluated before and after the race session. MX riders with an international ranking performed significantly better during both races (R1 and R2), which manifested itself in significantly shorter times per lap on average (difference for R1=14.8 s and for R2=16.7 s, respectively, p=0.017), more laps completed (G1 vs G2 approx.: 11.2: 9.9 laps for R1 and R2, p=0.019) and points scored (difference: R1=9.3 pts and R2=9.0 pts, p=0.014). There were no statistically significant differences in age between the two compared groups (p=0.559) and other anthropometric and physiological characteristics tested, with an exception of muscle mass percent (p<0.001); Conclusions: Current results showed that motocross probably places a heavy burden on riders, who need to be fit enough to maintain their position in the field.

Open Access: Yes

DOI: 10.16926/par.2024.12.05

Knowledge management and emotional labour in the Nigerian hospitality industry: moderating role of ethical leadership

Mohammad Fakhrul Islam Vitalii S. Nitsenko Friday Ogbu Edeh Collins Okechukwu Irem Gabriel Obasi Chidozie Udu Matthias Elom Egede Gloria Chinasa Nkwagu Desmond Neji Oben Obiageri Onwuegbule

Publication Name: International Journal of Learning and Change

Publication Date: 2025-01-01

Volume: 17

Issue: 2

Page Range: 205-229

Description:

The study investigated the moderating role of ethical leadership on the relationship between knowledge management and emotional labour in the Nigerian hospitality industry. The theories that underlined the work are the knowledge-based theory and emotional regulation theory. A cross-sectional research design was used, and primary data was obtained for the study, which was purposively drawn from 250 workers across a unit of hospitality firms. The data were analysed with partial least squares-structural equation modelling (PLSSEM) V4.1. The findings revealed that knowledge management correlated with emotional labour. However, it was also found that ethical leadership does not significantly moderate the relationship between the constructs. The study recommends that managers need to encourage the acquisition, sharing and application of knowledge to solving workplace problems.

Open Access: Yes

DOI: 10.1504/IJLC.2025.146617

Tempering effects in steel parts produced by additive fabrication using laser powder deposition

Lino Costa Augusto Moita De Deus R. Colaço Tamás Réti R. Vilar

Publication Name: Virtual Modelling and Rapid Manufacturing Advanced Research in Virtual and Rapid Prototyping

Publication Date: 2003-12-01

Volume: Unknown

Issue: Unknown

Page Range: Unknown

Description:

Laser processed tool steels present a metastable structure generally containing martensite and an extremely large proportion of retained austenite as compared to conventionally treated steel, which affects considerably the properties of the material. In rapid tooling by laser powder deposition, as consecutive layers of material are deposited to generate a 3D object, the material in previously deposited layers is submitted to successive thermal cycles, which destabilise retained austenite, leading to its transformation to martensite. Also, the martensite present in these layers will progressively decompose by tempering when the material is reheated. As a result, the properties of the material are progressively modified as the object is built-up. The evolution of the microstructure and properties of tool steels during laser freeform manufacturing is extremely difficult to study experimentally, due to the complexity of the transformations involved and the heterogeneity of the material and of the applied thermal field, hence modelling presents clear advantages in the optimization of part build-up strategy. In the present work, a model of the phase transformations resulting from the successive overlap of clad layers based on the coupling of finite element calculations of the time-dependent temperature distribution with transformation kinetics is described. The model was used to predict the evolution of properties and final property distribution in a martensitic stainless steel component produced by laser powder deposition.

Open Access: Yes

DOI: DOI not available

Hybrid Artificial Intelligence-based Process Flowsheet Synthesis and Design using Extended SFILES Representation

Mauricio Sales-Cruz Vipul Mann Rafiqul Gani Venkat Venkatasubramanian

Publication Name: Computer Aided Chemical Engineering

Publication Date: 2024-01-01

Volume: 53

Issue: Unknown

Page Range: 1279-1284

Description:

Process flowsheet synthesis and design involves simultaneously solving several problems, including determining the unit operations and their sequence, underlying reactions and reaction stoichiometry, downstream separation design and operation parameters, sustainability factors, and many more. Naturally, this results in a large amount of data being associated with a given process flowsheet that captures the relevant process context and should be readily accessible. This data is useful for solving related problems both using data-driven and process knowledge-based methods. A hierarchical framework, called the extended SFILES (or eSFILES), proposed recently stores this information using a combination of text-based, graph-based, and ontology-based representations. Here, we provide details on a prototype software for automated flowsheet representation and generation across various levels in the eSFILES framework. The underlying methods include a novel flowsheet grammar, a set of inferencing algorithms, and interfacing with a commercial process simulator facilitating rigorous flowsheet simulation.

Open Access: Yes

DOI: 10.1016/B978-0-443-28824-1.50214-3

Climate Risk Management and Sustainable Finance: The Role of Financial Institutions in the European Context

Abderahman Rejeb Sándor Remsei Oumaima Haj Ammar Donia Khalfallah Hana Bejaoui

Publication Name: Journal of Risk and Financial Management

Publication Date: 2026-05-01

Volume: 19

Issue: 5

Page Range: Unknown

Description:

Climate-related financial risks have become a central concern for financial institutions and regulators, particularly within the European financial system. This paper examines how climate-related risks are integrated into governance, risk assessment, and regulatory practices in European financial institutions. Using a structured narrative literature review of academic and institutional sources published between 2015 and 2026, the study synthesizes evidence on physical, transition, and liability risks, as well as the frameworks and tools used to assess them, including climate stress testing, scenario analysis, and climate value-at-risk models. The findings indicate that climate considerations are increasingly embedded within governance structures and supervisory frameworks; however, implementation remains fragmented due to inconsistent data, methodological limitations, and institutional barriers. The review further highlights that existing risk models often struggle to capture the long-term and non-linear nature of climate-related uncertainty. This paper contributes to the literature by linking financial stability theory and institutional theory to explain the persistent gap between regulatory ambition and institutional practice within the European context. The study concludes by discussing implications for supervisory policy, disclosure standardization, and climate-risk integration in financial decision-making.

Open Access: Yes

DOI: 10.3390/jrfm19050373

Mapping doping-related criminal legislation together: An informed stakeholder consultation

Andrea Petróczi Elizabeth Pummell Jan Exner Isaac Lockett

Publication Name: Performance Enhancement and Health

Publication Date: 2026-05-01

Volume: 14

Issue: 2

Page Range: Unknown

Description:

Access to reliable, jurisdiction-specific information on the existence and scope of doping-related criminal legislation is essential for understanding how anti-doping policies are interpreted and enforced globally. While the globally adopted World Anti-Doping Code provides a private regulatory framework for sporting sanctions, governments have introduced doping-related criminal laws that vary in scope, legal form, and underlying rationale. In the absence of a centralised legal resource, navigating this policy space becomes complex and challenging. This study addresses this gap by combining desk research with a multilingual, semi-structured informed stakeholder consultation to map the presence and scope of doping-related criminal legislation, identifying at least thirty-seven jurisdictions that have criminalised doping-related behaviours and enabling the development of five legislative typologies: comprehensive, trafficking-focused, child protection, context-specific, and fraud-based models. These typologies reveal variations in the behaviours targeted, definitions employed, and penalties applied. Such divergences raise important questions about the coherence of global anti-doping efforts, particularly regarding the definition of doping and the interaction between public and private sanctioning. This study also demonstrates the potential viability of a distributed, multi-actor approach to legal data gathering and supports the development of a dynamic, centralised legal database to advance transparency, equity, and evidence-informed anti-doping governance.

Open Access: Yes

DOI: 10.1016/j.peh.2026.100413

Ukrainian students on the global map of academic migration

Yuriy Bilan Olha Hrynkevych Halyna Mishchuk Natalia Samoliuk

Publication Name: Problems and Perspectives in Management

Publication Date: 2024-01-01

Volume: 22

Issue: 4

Page Range: 558-575

Description:

Considering the loss of talented youth in Ukraine caused by migration, there is a growing need to investigate how to attract and retain students. The study aims to identify the peculiarities of Ukrainian student migration against the background of global patterns of academic migration, focusing on factors of countries' attractiveness for the students. The typology of countries by the level of inbound and outbound academic migration is developed based on variation analysis. The correlation analysis is used to identify the factors that influence countries' attractiveness to students. The analysis of educational policies of the most attractive countries for Ukrainian students is fulfilled using the contextual analysis of legislative norms on academic mobility. In the global dimension, the variation of both inbound and outbound academic mobility is closely related to a country's economic level, measured by GNI per capita. However, the correlation analysis did not confirm the higher migration attractiveness of countries with a high level of economic development (correlation with GNI per capita is -0.147). The impact of employment and social and economic resilience of an economy was relatively significant, with the correlation coefficients of 0.426 and 0.371. The analysis of educational policies of host countries showed the active use of language integration tools, the combined use of financial mechanisms, and the involvement of universities in career development. Implementation of the best practices of educational management in Ukraine is critical for restoring demographic and intellectual capital.

Open Access: Yes

DOI: 10.21511/ppm.22(4).2024.42