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Publications - 6289

Modeling Hepatitis B and Alcohol Effects on Liver Cirrhosis Progression

Haci Mehmet Baskonus Dragan Pamucar Nigar Ali Zeeshan Ali Imtiaz Ahmad Zia Ur Rahman Imtiaz Ahmad Naseer Ul Haq

Publication Name: CMES Computer Modeling in Engineering and Sciences

Publication Date: 2026-01-01

Volume: 146

Issue: 1

Page Range: Unknown

Description:

Hepatitis B Virus (HBV) infection and heavy alcohol consumption are the two primary pathogenic causes of liver cirrhosis. In this paper, we proposed a deterministic mathematical model and a logistic equation to investigate the dynamics of liver cirrhosis progression as well as to explain the implications of variations in alcohol consumption on chronic hepatitis B patients, respectively. The intricate interactions between liver cirrhosis, recovery, and treatment dynamics are captured by the model. This study aims to show that alcohol consumption by Hepatitis B-infected individuals accelerates liver cirrhosis progression while treatment of acutely infected individuals reduces it. We proved that a unique solution of the proposed model exists, which is positive and bounded. Using the next-generation matrix approach, two basic reproductive numbers RA0 and RAmax are calculated to identify future recurrence. The equilibrium points are calculated, and both equilibria are proved locally and globally asymptotically stable when R0 is below and above one, respectively. It is shown that bifurcation exists at R0 = 1 and a detailed proof for forward bifurcation is given. Furthermore, we performed the sensitivity analysis of the model parameters on R0. For the confirmation of analytical work, we performed numerical simulations, and the results indicate that the treatment and the inhibitory effects reduce the risk of developing liver cirrhosis in individuals, while heavy alcohol consumption accelerates markedly the liver cirrhosis progression in patients with chronic hepatitis B.

Open Access: Yes

DOI: 10.32604/cmes.2025.070268

Tourist Attitudes toward Heritage of a County in Western Hungary

Csaba Kőmíves Ferenc Darabos Viktória Kundi

Publication Name: Sustainability Switzerland

Publication Date: 2024-07-01

Volume: 16

Issue: 13

Page Range: Unknown

Description:

Preserving and passing on folk traditions and gastronomic culture to the next generation has always been an important task of elderly people in every single historic period. The main goal of this study is to provide a clear picture of travelers’ attitudes toward gastronomy and cultural values in a western Hungarian county. The presence of the Szigetköz Nature Park and some World Heritage sites (like Fertő-Hanság National Park and Abbey of Pannonhalma) requires responsible tourism planning that is environmentally, socially, and economically sustainable. When conducting quantitative research (survey based on questionnaires), special attention was paid to tourists’ knowledge of gastronomy values and architectural, cultural, and natural attractions. Four hypotheses were formulated in this study. The data collection took place between 1 September 2023 and 30, October 2023 (N = 666). The sample is not representative since the respondents were randomly selected. As opposed to previous studies, the most important novelty of this research is that tourists’ visits to different destinations were assessed while previous studies mainly focused on the interests of tourists.

Open Access: Yes

DOI: 10.3390/su16135739

Effectiveness of exercise interventions on androgen and sex hormone-binding globulin levels in women with polycystic ovary syndrome: a systematic review and meta-analysis

Zsuzsanna Varga Viktoria Prémusz Mohammed Elmadani Shalini Chauhan Anaam Soloh Sachal Sadiq Najaf Leman Atmaca Maha Al-Jawarneh József Vitrai

Publication Name: Frontiers in Sports and Active Living

Publication Date: 2026-01-01

Volume: 7

Issue: Unknown

Page Range: Unknown

Description:

Introduction: Polycystic ovarian syndrome (PCOS) is a common disorder typified by hyperandrogenism, ovarian dysfunction, and metabolic disorders. Elevated androgen and decreased Sex Hormone Binding Globulin (SHBG) levels are some of the main features contributing to its clinical manifestations. Lifestyle interventions, especially exercise, are considered first-line management methods due to their positive effects on hormonal regulation. Due to a lack of comprehensively synthesized data on the effects of exercise on androgen and SHBG levels, in this systematic review and meta-analysis, we aimed to evaluate the effects of structured exercise on Total Testosterone and Dehydroepiandrosterone (DHEA-S) as primary parameters, and SHBG levels as secondary parameters. Methods: Relevant databases (EMBASE, Scopus PubMed, Web of Science, Cochrane Trials) were searched for Randomized Clinical Trials (RCTs) and Controlled Clinical Trials (CCTs) on exercise in Rotterdam-diagnosed PCOS women. Study selection and data extraction were carried out by two separate reviewers. Risk of bias was assessed using Cochrane RoB 2. Meta-analyses, employing a random-effects model, calculated Mean Differences (MDs) for hormonal outcomes, with subgroup analyses for different exercise types [e.g., aerobic, high-intensity interval training (HIIT)]. Results: A total of 23 studies involving women with PCOS were included. For the overall effect of exercise vs. control, meta-analysis of 12 studies (n = 563 participants) showed no significant effect on Total Testosterone, DHEA-S (5 studies, n = 231 participants), or SHBG (10 studies, n = 422 participants). However, subgroup analysis revealed that aerobic exercise led to a statistically significant reduction in Total Testosterone levels (4 studies, n = 212 participants). HIIT did not show a significant effect on Total Testosterone or SHBG. Conclusion: Aerobic exercise significantly reduces total testosterone levels in women with PCOS, according to this meta-analysis, indicating that it may be used as a non-pharmacological method of managing hyperandrogenism. Systematic Review Registration: https://www.crd.york.ac.uk/PROSPERO/view/CRD42024502657, PROSPERO CRD42024502657.

Open Access: Yes

DOI: 10.3389/fspor.2025.1686566

Retrofit Synthesis of Industrial Heat Exchanger Networks with Different Types of Heat Exchangers

Olga Arsenyeva Ákos Orosz Ferenc Friedler

Publication Name: Chemical Engineering Transactions

Publication Date: 2021-01-01

Volume: 88

Issue: Unknown

Page Range: 613-618

Description:

Heat Exchanger Network (HEN) synthesis is a powerful tool for the development of more efficient processes with high utilization of mass and energy resources. The implementation of compact heat exchangers with enhanced heat transfer into the industrial flowsheets can provide more efficient and economically feasible solutions. Plate Heat Exchanger (PHE) is one of established types of enhanced HEs. To estimate possible benefits of that kind of heat transfer enhancement, a mathematical model of PHE, which accounts for different plate types and corresponding corrugations geometry, is used. The integration of this model with the P-graph-based HEN synthesis approach allowed to create the method, which considers different types of heat exchangers. This approach enables to integrate not only conventional shell-and-tube heat exchangers, but also PHEs, which overall heat transfer coefficient is in average 2-3 times higher, during the optimization process of a new or existing HEN. The capabilities of the proposed method are presented via a case study for oil preheat train, where an existing network is retrofitted; first with shell-and-tube heat exchangers only, then with the consideration of both shell-and-tube and plate heat exchangers.

Open Access: Yes

DOI: 10.3303/CET2188102

Green and Renewable Energy Financial Literacy Affecting Economy, Society, and Governance (ESG) in Mexico

Csongor Czipf Absalón J. Salmerón- Zapata José G. Vargas- Hernandez

Publication Name: Data Driven Esg Strategy Implementation Through Business Intelligence

Publication Date: 2025-08-12

Volume: Unknown

Issue: Unknown

Page Range: 115-139

Description:

This research delves into the intricate relationship between green and renewable energy financial literacy and its impact on Environmental, Social, and Governance (ESG) practices in Mexico's changing economic landscape. The study attempts to investigate how financial literacy regarding sustainable energy investments influences the performance of ESG on economic, social, and governance factors in the Mexican context. Through a careful examination of available literature, policy guidelines, and empirical data, this research discovers that greater financial literacy in green and renewable energy sectors has a direct correlation with improved ESG performance, which results in sustainable economic development, social advancement, and governance culture in Mexico. The study concludes that strategic actions to increase financial literacy in renewable energy investments are required for Mexico's sustainable development trajectory and ESG leadership in the Latin American region.

Open Access: Yes

DOI: 10.4018/979-8-3373-5142-1.ch005

Hijacked medical journals and the risk to scholarly integrity: a web analytics study of prevalence, traffic channels, and geographic origins of traffic

Lóránt Dávid Mehdi Dadkhah Edit Ilona Pallás

Publication Name: Diagnosis

Publication Date: 2026-01-01

Volume: Unknown

Issue: Unknown

Page Range: Unknown

Description:

Objectives: The integrity of research and science is increasingly under threat from questionable journals. In particular, hijacked journals rapidly expand, propagating scam-based, non-peer-reviewed publications. While the academic literature offers discussions, developed methodologies, and block lists to combat these fraudulent journals, the most prevalent hijacked journals and their primary distribution channels remain ambiguous. Methods: To bridge this knowledge gap, the current study utilized a list of 380 previously detected hijacked journals and the web analytics platform Semrush to identify the most visited hijacked journals and their primary channels for attracting web traffic. This research first analyzes hijacked journals across various fields and then focuses specifically on hijacked medical journals. Results: Our findings demonstrate that over 50 % of previously detected hijacked journals are active, primarily attracting researchers via email, search engines, and artificial intelligence (AI) tools. Furthermore, the majority of visitors to these journal websites originate from India. The results for medical journals align with these overall trends. Conclusions: Addressing the significant problem these questionable journals pose necessitates implementing legal action and technological solutions.

Open Access: Yes

DOI: 10.1515/dx-2025-0158

Transition in the mining industry with green energy: Economic dynamics in mining demand

Laszlo Vasa Ashutosh Kolte Omkar Hirlekar

Publication Name: Resources Policy

Publication Date: 2025-01-01

Volume: 100

Issue: Unknown

Page Range: Unknown

Description:

This paper examines transformation of the mining industry in the Global South due to the rising demand for electric vehicles (EVs), which is a part of disruptive green technologies. South Africa & Democratic Republic of the Congo (DRC) are two important suppliers of critical minerals like cobalt, nickel, lithium, copper. This research tries to explore economic dynamics of mineral extraction and green transport. Using quantitative regression analysis, this paper tries to find the relationship between demand for EVs and its economic impact on mining industry's overall sales. The analysis has shown impact of critical minerals & mining sale and how disruptive technology like Evs are affecting mineral-rich countries sustainable mining. This paper is trying to shows some light on economic importance of critical minerals in transition of mining industry due to green vehicles or Evs. The association between the emerging green technology and the mining sector. The study focuses on nations in the Global South that have substantial control over the supply chain of essential minerals used in electric car batteries. The main objective of this study is to conduct an academic investigation of the many implications of green transport on the mining sector in the Global South.

Open Access: Yes

DOI: 10.1016/j.resourpol.2024.105409

Corporate Social Responsibility from the Aspect of Sustainability—Evidence from the Hungarian HR Sector

Dóra Lakosy Julia Szoke

Publication Name: Administrative Sciences

Publication Date: 2025-05-01

Volume: 15

Issue: 5

Page Range: Unknown

Description:

Corporate social responsibility (CSR) has been long examined since every company affects its natural and social environments. This study presents research on CSR practices and their relationship with Sustainable Development Goals (SDGs) with the aim to find out about CSR from the aspect of sustainability in practice. The study reviews the theoretical framework for sustainability and CSR, and by conducting qualitative research focusing on the CSR activities of the Hungarian HR service industry, it presents the relation of these CSR practices to sustainability. This regional focus combined with the industry-specific focus provides the novelty of the study. Results show that the Hungarian HR sector has made a significant contribution to sustainable development in the areas of equality and inclusiveness in the responsible workplace and environmental/ecological responsibility. It was also found that the CSR practices of the examined HR companies greatly overlap, although differences were identified. It concludes that HR companies operating in Hungary can contribute to sustainable development and that the examined companies’ CSR practices are aligned with the SDGs, since sustainability is an integral part of their CSR strategy, though in various degrees.

Open Access: Yes

DOI: 10.3390/admsci15050159

Relationships between tax communication, education and tax administration in Hungary between 2018 and 2022

Katalin Borbély Rita Anna Ambrus

Publication Name: Zeszyty Teoretyczne Rachunkowosci

Publication Date: 2023-12-18

Volume: 47

Issue: 4

Page Range: 173-190

Description:

Purpose: The objective of the study is to highlight the relevant contexts and problems of the Hungarian tax administration from the aspects of digitalisation, communication and education between 2018 and 2022. Methodology/approach: The article is based on the statements from the professional literature and analysis of secondary data from national and international authorities and institutions. The article makes several comparisons. Findings: The article shows how Information and Communications Technology (ICT) is used in tax administration in Hungary, filling the research gap. Based on the comparison, the digital development of Hungary is similar to that of the EU average. However, there are some impediments, such as the complexity of tax regulations and the numerous communication channels that exist. They could be simplified, and our proposed modifications in terms of communication and education could improve the use of ICT in the Hungarian tax system. Research limitations: The research does not provide an in–depth examination of Hungarian tax legislation and lacks any primary research. Originality/value: The article deals with some aspects of tax administration in Hungary; it describes the current situation and gives proposals for its development.

Open Access: Yes

DOI: 10.5604/01.3001.0054.0889