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Publications - 6383

Aspects of Fragility in Bosnia and Herzegovina

Eszter Kazinczy

Publication Name: Montenegrin Journal of Economics

Publication Date: 2024-01-01

Volume: 20

Issue: 2

Page Range: 145-154

Description:

Bosnia and Herzegovina remains a country with a number of deeply rooted structural challenges, which are linked to the political and the broader social sphere. The current paper provides an overview on a range of key factors that have led to the country’s fragility. During the analysis we start with the concerns related to multi-ethnic democracies, and specifically to Bosnia and Herzegovina’s unique state structure. The latter was founded in 1995, in line with the so-called Dayton Peace Agreement. We also touch upon variables that are connected to the economic and social fields, by discussing indicators that are related to labor market distortions or the level of corruption. The study provides an overview on Bosnia and Herzegovina’s position referring to international fragility indexes. Based on the analysis, we find various aspects that raise concerns regarding Bosnia and Herzegovina’s fragility.

Open Access: Yes

DOI: 10.14254/1800-5845/2024.20-2.12

Cartel cases: From state negligence to direct political interest in Hungary

Tamás Bezsenyi Éva Inzelt

Publication Name: European White Collar Crime Exploring the Nature of European Realities

Publication Date: 2021-07-21

Volume: Unknown

Issue: Unknown

Page Range: 187-204

Description:

No description provided

Open Access: Yes

DOI: DOI not available

Computer-Aided Planning of Radial and Diameter Routes in Local Public Transport Networks

Ágoston Winkler

Publication Name: Eurasia Proceedings of Science Technology Engineering and Mathematics

Publication Date: 2023-01-01

Volume: 23

Issue: Unknown

Page Range: 165-172

Description:

Local public transport network planning is a complex procedure affected by many aspects (e.g., city structure, travel needs, the budget for the service, vehicle types, service frequencies, timetable optimization of parallel routes etc.). Due to the high number of possible solutions, finding the optimum is usually a problem with NP computational complexity. Although an extensive toolkit is available for evaluating specific networks, the number of versions that can be realistically examined and compared is highly limited. This implies that the routine and creativity of the network planning specialists play an important role in the selection of the examined networks. However, in some special cases, the search space can be narrowed so that all network versions can be automatically generated and compared. This paper presents such a case: when applying radial and diameter routes only, the main question is which directions should be connected to each other as a diameter route, or left alone as a radial line. The algorithm is presented on the example of the city Győr.

Open Access: Yes

DOI: 10.55549/epstem.1365754

Positivity of Runge-Kutta and diagonally split Runge-Kutta methods

Zoltán Horváth

Publication Name: Applied Numerical Mathematics

Publication Date: 1998-01-01

Volume: 28

Issue: 2-4

Page Range: 309-326

Description:

In this paper we study positivity of general Runge-Kutta (RK) and diagonally split Runge-Kutta (DSRK) methods when applied to the numerical solution of positive initial value problems for ordinary differential equations. Here we mean by positivity that the nonnegativity of the components of the initial vector is preserved. First we state and prove a theorem that gives conditions under which a general RK or DSRK method is positive on arbitrary positive problem set. Then we study problems which are simultaneously positive and dissipative. For such problems we give the maximal step size that - under a solvability assumption on the algebraic equations defining the method - guarantees positivity. We show how the step size threshold is governed by the radius of positivity, which is an inherent property of the scheme. This result ensures that we can construct DSRK methods which are unconditionally positive and have an order higher than 1. Note that such a method does not exist between the classical methods. Investigating the radius of positivity of RK methods further we can get rid of the additional solvability condition. In this way we can give a complete positivity analysis for RK methods. We calculate the positivity threshold for some methods, which are of practical interest. Finally we prove a theorem which generalizes the well-known result of Bolley and Crouzeix to nonlinear problems. © 1998 Elsevier Science B.V. and IMACS. All rights reserved.

Open Access: Yes

DOI: 10.1016/S0168-9274(98)00050-6

Cybersecurity Regulations and Software Resilience: Strengthening Awareness and Societal Stability

Boris Bučko Joseph Squillace Justice Cappella Roland Kelemen Martin Mazuch Ádám Medvácz

Publication Name: Social Sciences

Publication Date: 2025-10-01

Volume: 14

Issue: 10

Page Range: Unknown

Description:

The societal effects of cybersecurity are widely discussed, but it remains less clear how software security regulations specifically contribute to building a resilient society, particularly in relation to Sustainable Development Goals 5 (Gender Equality), 10 (Reduced Inequalities), and 16 (Peace, Justice and Strong Institutions). This study investigates this connection by examining key EU and U.S. strategies through comparative legal analysis, software development (SDLC) case studies, and a normative–sociological lens. Our findings reveal that major regulations—such as the EU’s Cyber Resilience Act and the U.S. SBOM rules—are not merely reactive, but proactively embed resilience as a fundamental mode of operation. This approach structurally reallocates digital risks from users to manufacturers, reframing software security from a matter of compliance to one of social fairness and institutional trust. We conclude that integrating ‘resilience by design’ into technology rules is more than a technical fix; it is a mechanism that makes digital access fairer and better protects vulnerable populations, enabling technology and society to advance cohesively.

Open Access: Yes

DOI: 10.3390/socsci14100578

Mapping the scholarly literature on the infodemic using topic modelling

Gergely Ferenc Lendvai

Publication Name: Social Sciences and Humanities Open

Publication Date: 2026-06-01

Volume: 13

Issue: Unknown

Page Range: Unknown

Description:

The present study aims to map the scholarly evolution of the infodemic as a research subject through a scientometric analysis of 852 peer-reviewed articles indexed in Web of Science between 2020 and 2024 building on scientometric methods and Structural Topic Modeling (STM). Findings reveal a sharp rise in publications during the pandemic years, peaking in 2022, followed by a remarkable decline in both output and citation impact. The STM uncovered 20 distinct topics, with dominant themes centred on health communication, misinformation, social media, and institutional trust. While several themes peaked early in the pandemic, others, such as institutional or public trust, gained prominence later. Topic correlations showed dense interlinkages but low modularity suggested conceptual fragmentation and weak field consolidation. The results highlight that infodemic scholarship remains an emergent, interdisciplinary domain, however, there is a need for stable theoretical foundations.

Open Access: Yes

DOI: 10.1016/j.ssaho.2026.102572

The Effect of Heat Treatment on the Mechanical Properties of Continuously Fibre-Reinforced Standardised Specimens

Robert Magai Balazs Molnar

Publication Name: International Journal of Automotive Science and Technology

Publication Date: 2025-12-17

Volume: 9

Issue: 1st Future of Vehicles Conf.

Page Range: 22-27

Description:

This study investigates the influence of post-printing heat treatments on the mechanical characteristics of 3D-printed specimens strengthened with continuous Kevlar filaments. After their fabrication, the specimens underwent thermal annealing at temperatures of 100 °C and 150 °C for either 1 or 3 hours. To assess the effects of these treatments on mechanical performance, tensile tests and microscopic analyses were performed. The findings indicated that the most significant enhancement was observed in specimens annealed at 150 °C for 1 hour, which resulted in an approximately 20% increase in tensile strength compared to untreated samples. Heat treatments at 100 °C for 1 hour and 3 hours led to moderate improvements of 5–8%, whereas extended treatment at 150 °C for 3 hours resulted in a reduction of about 10% in tensile strength. Microscopy revealed that brief, high-temperature treatment enhanced interlayer bonding and decreased internal stress without harming the structure, while prolonged thermal exposure led to local delamination and compromised fibre–matrix adhesion. These results suggest that controlled post-printing heat treatment can enhance the mechanical properties of continuous fibre-reinforced composites, though excessive heat exposure can lead to degradation. Therefore, careful optimisation of temperature and duration is crucial. The outcomes offer valuable insights for improving the structural performance of additively manufactured continuous fibre-reinforced components.

Open Access: Yes

DOI: 10.30939/ijastech.1752437

Investigating the Operational Efficiency for the Small Asian Retailer Stores under the Deposit Refund System: Hungary Case Study

Marah Almelhem Sipaseuth Aliyamone

Publication Name: Chemical Engineering Transactions

Publication Date: 2025-01-01

Volume: 121

Issue: Unknown

Page Range: 85-90

Description:

Waste management is crucial to achieving global sustainability goals, with the Deposit Refund System (DRS) emerging under the Extended Producer Responsibility (EPR) framework to enhance recycling rates by incentivising consumers to return beverage containers through refundable deposits. In Hungary, large retailers are required to participate in DRS, while small retailers may join voluntarily. This research aims to identify key factors influencing the voluntary participation of small Asian retail stores, focusing on economic, operational, regulatory, and social aspects. Using semi-structured interviews with ten stores in Budapest and Győr, a thematic analysis identified both motivators and barriers to participation. Findings indicate environmental awareness among participants, but low operational capacity, with space constraints, labour demands, and unclear regulations limiting engagement. Financial concerns, particularly equipment and handling costs, were major deterrents, while the potential for increased customer traffic was seen as a benefit. The study highlights the need for targeted financial incentives, infrastructure support, and clear policy communication to increase the inclusion of small retailers in DRS frameworks.

Open Access: Yes

DOI: 10.3303/CET25121015

Analysis and Measurement of Bending Stiffness of Wound String According to Higher Order Frequencies

Mate Antali Péter Szalai

Publication Name: Advances in Transdisciplinary Engineering

Publication Date: 2024-01-01

Volume: 59

Issue: Unknown

Page Range: 263-268

Description:

Bass strings of piano are manufactured by winding a wire around a core string. At these strings, the bending stiffness is not negligible. This effect modifies the higher harmonics of the string compared to the harmonic spectrum of the ideal string. This inharmonicity is even more significant in upright pianos. The effect has recently received renewed attention in the literature. In the present paper, the authors present a dynamic measurement for determining the bending stiffness of the piano strings. By using the so-called inharmonicity coefficient, the spectrum of the string is predicted, and the deviation from the ideal string is determined.

Open Access: Yes

DOI: 10.3233/ATDE240554