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Publications - 6374

HOME-BASED TELEWORK: ASPECTS OF COMMUNICATION. EVIDENCE FROM HUNGARY

Ágnes Borgulya Márta Konczos Szombathelyi Gábor Balogh

Publication Name: Economics and Sociology

Publication Date: 2023-01-01

Volume: 16

Issue: 3

Page Range: 178-197

Description:

This paper examines the communication aspect of Home-Based Telework (HBT). The aim of this study is to focus on internal organizational communication from the perspective of occupation and time spent in HBT by answering two research questions. Firstly, how does the occupation influence the perception of organizational communication and the attitude towards remote work? Secondly, does the evaluation of communication within the organization change according to the employees' judgment, depending on the time spent in HBT? During the research, a systematic literature review related to HBT was carried out. Moreover, an anonymous online questionnaire survey was conducted in four occupational groups, on a sample of 1,100 people. The results show that there are significant differences related to the perception of communication between groups that can be distinguished based on occupations and time. The conclusions drawn from the results can serve as a reference point both for the researchers of the topic and for those company managers who prepare and organize the permanent introduction of HBT.

Open Access: Yes

DOI: 10.14254/2071-789X.2023/16-3/10

Hybrid-Optimized Gudermannian Neural Network for Oscillatory Dynamics

Aamir Farooq Hijaz Ahmad Sadique Rehman Emad A.A. Ismail Uzma Nadeem Malik Ahsin Iqbal Fuad A. Awwad

Publication Name: IEEE Access

Publication Date: 2026-01-01

Volume: 14

Issue: Unknown

Page Range: 20873-20889

Description:

Differential equations govern the dynamics of many physical systems, including mass–spring and mass–spring–damper systems. We propose a fully connected Gudermannian-activated neural network (FCGNN) trained with a hybrid global–local optimizer: a genetic algorithm for a global search, followed by an active-set method for rapid local refinement. The Gudermannian activation smoothly links trigonometric and hyperbolic behaviors, enabling a single network to capture both oscillatory (underdamped/forced) and exponential (overdamped) responses with improved expressivity over standard activation functions. We also studied the effect of L1 and L2 regularization on generalization. Using canonical vibration benchmarks, Monte Carlo trials quantify the robustness of the initialization and noise. The FCGNN’s predictions closely match the analytical solution and outperform physics-informed neural networks, achieving higher accuracy with compact architectures and reduced training effort. The novelty of the model is in the integration of the gudernmannian activation function with a hybrid GA–ASM optimization and independent regularization analyses, along with the Monte Carlo simulations, which yield an accurate solver for oscillatory systems.

Open Access: Yes

DOI: 10.1109/ACCESS.2026.3660865

Fuzzy Cognitive Maps: Mathematical Challenges

Istvan A. Harmati

Publication Name: Studies in Fuzziness and Soft Computing

Publication Date: 2024-01-01

Volume: 427

Issue: Unknown

Page Range: 95-103

Description:

Although the applications of fuzzy cognitive maps cover a wide variety of scientific and engineering fields, the deep theoretical analysis of their behaviour has a much more weaker literature. In this chapter, first we introduce a more compact description of the updating rule, which makes the further mathematical investigations easier. Then several examples of different qualitative behaviour are shown, highlighting the importance of the strict mathematical discussion of this problem. Finally, the main mathematical factors regarding the behaviour of fuzzy cognitive maps and its extensions will be introduced.

Open Access: Yes

DOI: 10.1007/978-3-031-37959-8_8

Examining the relationship between workplace stress and organizational commitment

P. Karácsony

Publication Name: ACM International Conference Proceeding Series

Publication Date: 2019-05-24

Volume: Unknown

Issue: Unknown

Page Range: 26-30

Description:

Nowadays, labor markets are fighting with labor shortages, leading to a growing challenge for organizations to retain their staff. Leaders have to face many job challenges, such as workplace stress. Workplace stress is a result of the interaction between a person and their work environment. Increasingly common workplace stress could be a cause for concern, as it may have a significant economic impact on the organization. Long-term work stress can cause the workers to lose their commitment to the organization. The purpose of this study is to assess the relationship between workplace stress and employee commitment through the example of Hungarian small and medium-sized enterprises. As a research method, I chose a questionnaire survey which included both open and closed-type issues. While evaluating the questionnaires, I found that there is a strong correlation between workplace stress and employee commitment. Moreover, in addition to occupational stress having a negative effect on organizational commitment, it also has a negative effect on work performance. My research shows that the managers of the examined organizations largely know of workplace stress, and have the professional knowledge to handle the problems.

Open Access: Yes

DOI: 10.1145/3335550.3339898

Definitions and measurement of power factor

Z. Puklus András Fehér

Publication Name: 8th International Symposium of Hungarian Researchers on Computational Intelligence and Informatics Cinti 2007

Publication Date: 2007-12-01

Volume: Unknown

Issue: Unknown

Page Range: 623-632

Description:

The methodology of measurement of cos was developed long time ago, but it is usable only for sinusoidal voltages and currents. Nowadays the customer loads use power supplies built with semiconductors, switching power supplies, power controlling systems, etc. These loads cause non-sinusoidal current in power lines, energy quality and EMC problems. The method of Power Factor measurement is described in this article, which is a good KPI in these cases.

Open Access: Yes

DOI: DOI not available

International Trade in Food and Agro-Based Products in the Time of COVID-19

Katalin Mezei Nóra Gombköto

Publication Name: Quaestiones Geographicae

Publication Date: 2024-03-01

Volume: 43

Issue: 2

Page Range: 5-16

Description:

The aim of the study is to examine the regional impact of the COVID-19 pandemic and its individual waves on foreign trade in food and agro-based products in the world's largest trading countries. The study was based on the statistical database of the International Trade Centre (ITC). In addition to the basic analysis, use was made of the auto-correlation method to detect special relationships between foreign food trade of different countries. The results show that the pandemic has had the greatest impact on agricultural and food trade in the United States, but it has spilled over to other countries as well, especially its two major trading partners, the European Union and China. Food trade stagnated in the initial period of the pandemic, but later recovered relatively well. The six examined regions can be divided into three groups based on the typical features of their autocorrelation.

Open Access: Yes

DOI: 10.14746/quageo-2024-0016

'Hermeneutical and cognitive experiments' of the 'Explicit name of god's crown of number-archetype 137 in the book bahir compared with the 'fine structure' of the related medieval artistic works concerning constantine porphyrogenitus' hidden world

Peter Varlaki Péter Baranyi

Publication Name: 8th IEEE International Conference on Cognitive Infocommunications Coginfocom 2017 Proceedings

Publication Date: 2017-01-01

Volume: 2018-January

Issue: Unknown

Page Range: Unknown

Description:

The paper discusses the meaning and structure identification of the 'Explicit God Names' as a symbolic crown of the number archetype of 137 ('invented' by Constantine Porphyrogenitus) and intends to show some similar or isomorphic representations, as well as systems of structure and meaning in other important medieval works, as well.

Open Access: Yes

DOI: 10.1109/CogInfoCom.2017.8268296

Smart Hybrid Energy Management System in a Passenger Car

András Lajos Nagy Péter Németh Barna Hanula

Publication Name: Chemical Engineering Transactions

Publication Date: 2023-01-01

Volume: 107

Issue: Unknown

Page Range: 457-462

Description:

The technological advancements of internal combustion engines, batteries, and electric propulsion technology have reached such a level that they bring a new dimension to the potential of hybrid propulsion systems. Partially or fully electric vehicle propulsion drivetrains receive significant attention when considering the future of mobility, as they have the potential to reduce the sector's greenhouse gas emissions and dependence on fossil fuels and hopefully mitigate climate change. This paper aims to design a hybrid powertrain for a conventional passenger vehicle that can cover the performance requirements of everyday average urban usage with electric propulsion to reduce consumption and emissions and improve sustainability. It aims to present the performance requirements of the vehicle based on road measurements conducted under various traffic conditions and usage environments. The energy savings achieved through the auxiliary powertrain will also be evaluated based on real-life, everyday usage conditions. Finally, the paper introduces a Life Cycle Assessment (LCA), which compares the original conventional propulsion system with the new hybrid powertrain.

Open Access: Yes

DOI: 10.3303/CET23107077

Primary Sector Value Addition and Environmental Performance in BRICS: The Roles of Environmental Policy Stringency and Green Innovation

Sakiru Adebola Solarin Naif Alsagr Péter Németh Péter Németh Shahid Ali Sakiru Adebola Solarin

Publication Name: Land Degradation and Development

Publication Date: 2026-01-01

Volume: Unknown

Issue: Unknown

Page Range: Unknown

Description:

In recent decades, the BRICS countries have experienced rapid economic growth, much of which has been driven by agriculture, natural resource extraction, and industrial exports. However, the continued expansion of these sectors is accompanied by growing environmental vulnerabilities. While value addition in agriculture, forestry, and fishing is crucial for development, it is also widely acknowledged as a contributor to land degradation. Against this backdrop, this study examines the impact of agriculture, forestry, and fisheries value added on environmental performance in the BRICS countries over the period of 1990–2023. This study is the first to integrate agricultural, forestry, and fishing (AFF) value added, natural resource rents, green innovation, environmental policy stringency, and greenhouse gas (GHG) emissions into a single framework, with an emphasis on the BRICS countries. We employ quantile regression to uncover how these relationships differ across different levels of the distribution of GHG emissions. As a robustness check, we use the bootstrap quantile regression approach, which estimates coefficients and standard errors through a bootstrapping procedure. The results show that primary sector value addition is positively related to GHG emissions. However, renewable energy consumption, environmental policy stringency, total natural resource rents, and green innovation negatively affect GHG emissions.

Open Access: Yes

DOI: 10.1002/ldr.70481