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Publications - 6374

Effect of subsoiling on the yield of sugar beet under conditions of rhizomania infection.

G. Kuroli Lajos Németh

Publication Name: Mededelingen Rijksuniversiteit Te Gent Fakulteit Van De Landbouwkundige En Toegepaste Biologische Wetenschappen

Publication Date: 2002-01-01

Volume: 67

Issue: 2

Page Range: 321-325

Description:

The rhizomania is known in Hungary since 1982. The causal agent, Beet necrotic yellow vein benyvirus (BNYVV) is transmitted by a soil-borne fungus Polymyxa betae Keskin. A field experiment was done under rhizomania infested and non-infested conditions to compare the yield parameters of five tolerant and four sensitive sugar beet hybrids. Tolerant varieties produced higher root yield under rhizomania infected conditions. The root yields of the sensitive varieties were similar to the tolerant ones on the uninfested field, but the root mass of some tolerant varieties exceeded the production of the former group. Subsoiling was carried out in two strips of a heavily infested field, while conventional soil cultivation was done on the other parts. There was not any other difference in the cultivation of the treated and control areas. Sugar beet root samples were collected at the time of harvesting from the subsoiled and control plots. Beet necrotic yellow vein virus (BNYVV) infection was tested by means of ELISA. Virus content, yield and yield parameters of samples were compared. There were no significant differences in virus infection between sugar beet roots derived from subsoiled and untreated plots. Ratio of BNYVV infected plants was about 90% in both areas. However, yield and yield parameters showed remarkable difference. Root yield of treated plots, calculated from average individual root weight and 80,000 plant/ha plant density exceeded by 140% the yield of control. Sugar content was 2.6% higher and the harmful non-sugar content was lower on the subsoiled plots. Owing to the favourable chemical and technological value of beet the white sugar content was approximately three-times higher on the treated area.

Open Access: Yes

DOI: DOI not available

Systems engineering in automotive product development: A guide to initiate organisational transformation

Dániel Feszty Tibor Dőry Tamás Kolossváry

Publication Name: Journal of Open Innovation Technology Market and Complexity

Publication Date: 2023-12-01

Volume: 9

Issue: 4

Page Range: Unknown

Description:

Systems Engineering (SE) is an engineering method that has rarely been applied in Automotive Product Development, despite its noticeable positive effects in other engineering fields. With increasing interests, firms and scholars have started to discover its impact in the segment, however internal hurdles appear when it comes to implementation practices at organisations across the industry. This paper presents a comprehensive guideline, results and good practices on the SE implementation, developed in Formula SAE (FSAE), which is a relevant model environment of automotive industry. The impact of applying SE show project results improvement in cost, time and quality aspects, although, the maturity of SE should be assessed at the system of systems level. Outcomes gained from FSAE have been validated by in-depth interviews with SE experts, engineers and managers affiliated at technical development departments of 4 different automotive OEMs. These practitioners provide evaluated practices as employee involvement, applying learning by doing, and playing with architectures relevant and feasible in industrial setting, however emphasized expected impeding factors as sluggishness and general resistance to organisational changes.

Open Access: Yes

DOI: 10.1016/j.joitmc.2023.100160

Convergent validity of the Hungarian version of the Disordered Eating Screen For Athletes (DESA-6H) – Results of a pilot study

Gusztáv J. Tornóczky Réka Erika Kovács József Toman Szilvia Boros István Karsai

Publication Name: Mentalhigiene Es Pszichoszomatika

Publication Date: 2025-10-13

Volume: 26

Issue: 3

Page Range: 123-137

Description:

Background: Adequate nutrient intake is an essential part of athletes’ preparation, which results in more effective training adaptation, recovery, better body composition ratios, and improved sports performance. Inadequate nutrient intake or lack of knowledge can lead to disordered eating and eating disorders, the prevalence of which is higher among athletes than in the general population. In most cases, these unwanted outcomes occur because athletes do not seek the help of a qualified dietitian. According to a 2019 report by the International Olympic Committee, disordered eating and eating disorders’ point prevalence ranges from 6% to 45% in women and 0% to 19% in men. In Hungary, no athlete sample has been tested with screening questionnaires for eating disorders, and the development of reliable measurement tools for identifying this problem is also necessary. Objective: The aim of this study is to present the Hungarian version of the DESA-6 questionnaire (DESA-6H) for screening disordered eating among athletes and to investigate its convergent validity (CV), as well as to evaluate athletes’ nutritional behaviors based on comparative study results. Methods: The DESA-6H questionnaire was tested on elite athletes (n = 131) and recreational athletes (n = 123) aged 14 and older. Kendall’s tau-b correlation was used to establish the CV between the DESA-6H and the total EAT-26 score, as well as between the DESA-6H and the three subscales of the EAT-26. The same method was used to test the potential linear relationship between eating behavior questionnaires and weekly training hours. Chi-square tests were conducted to test the relationships between nominal variables. Differences between groups based on age and sport participation levels were analyzed using Kruskal-Wallis H tests, and post-hoc analyses were conducted using Mann-Whitney U tests. Results: The CV analysis showed a significant positive correlation between the DESA-6H and the total EAT-26 score (τb = 0.49, p < 0.001), the EAT-26 Dieting subscale (τb = 0.53, p < 0.001), and the EAT-26 Bulimia subscale (τb = 0.39, p < 0.001). In the total sample, 20.4% scored above the threshold on the DESA-6H, while 40.1% scored above the threshold on the EAT-26. Among sports categories, the highest prevalence was found in aesthetic, weight-dependent, and endurance sports. A significant difference was observed in the DESA-6H scores based on gender (U = 4948.50, Z = –5.210, p < 0.001) and sports participation level (U = 6847.50, Z = –2.123, p = 0.034), with large (Cohen’s d = 0.68) and small ( Cohen’s d = 0.26) effect sizes. The Mann-Whitney U-test showed no significant difference between the 14–17-year-old and 18+ age groups in terms of DESA-6H scores (U = 6082.00, Z = –1.017, p = 0.309). No statistically significant differences were found between the two age groups on the EAT-26 scores either (U = 6490.00, Z = –0.220, p = 0.826). Overall, the statistical tests consistently supported the convergent validity of the DESA-6H when compared with the EAT-26. Conclusions: Based on the results of our research, it can be concluded that the DESA-6H questionnaire is a reliable tool for screening disordered eating among Hungarian athletes. Its application can help in the early detection and prevention of eating disorders.

Open Access: Yes

DOI: 10.1556/0406.2025.00074

INTERNATIONAL TRADE LAW AND EMERGING TECHNOLOGIES – A CONCEPTUAL FRAMEWORK /

Balázs Horváthy

Publication Name: Bratislava Law Review

Publication Date: 2020-12-31

Volume: 4

Issue: 2

Page Range: 9-20

Description:

The paper aims to establish a conceptual framework for a relation between technological development and the international trade law. Uncovering the complex interaction between these two areas of the social reality is important today, when we are witnessing an intense period of technological revolution, which transforms not only the trade, but also the whole economy, and at the same time, it also creates challenges to the international trade law. The paper sheds light on the background of these processes and offers an introductory analysis with the aim of mapping the topic and the relevant literature. For this reason, the paper examines the roots of this context, and tries to respond the questions, what are the main challenges this revolution poses to international trade law, and how this area of law can rely upon its infrastructure to respond these challenges.

Open Access: Yes

DOI: 10.46282/blr.2020.4.2.201

The Usability of Polymethyl Methacrylate in Marshall Samples for Asphalt Pavements Using in Railway Supplementary Layers

Szabolcs Fischer Richárd Nagy Şevket Aslan Mohammad Fahad Szabolcs Rosta Furkan Kaya Klaudia Madarász

Publication Name: Lecture Notes in Networks and Systems

Publication Date: 2025-01-01

Volume: 1258 LNNS

Issue: Unknown

Page Range: 34-45

Description:

In today's world, construction and infrastructure projects necessitate innovative solutions in environmental sustainability and materials engineering. In this context, research efforts to improve the properties of asphalt mixtures, reduce environmental impacts, and contribute to recycling hold great significance. This study focuses on modifying stone mastic asphalt mixtures with waste material derived from Polymethyl Methacrylate. Using Polymethyl Methacrylate as waste plastic material represents a significant step forward in recycling and sustainable material usage. In the study, Marshall specimens were obtained using Polymethyl Methacrylate in different proportions in bitumen and aggregate. The results of the Marshall specimens were evaluated to determine the usability and optimum ratios of Polymethyl Methacrylate. This study aims to evaluate the impact of Polymethyl Methacrylate on stone mastic asphalt mixtures as a support layer in railway tracks to help reduce noise and vibration. The results demonstrate that varying concentrations of Polymethyl Methacrylate in both aggregate and bitumen significantly alter the mechanical and thermal properties of the asphalt. For instance, incorporating 2.5% Polymethyl Methacrylate in the aggregate increased the VMA to 21, resulting in VFA values of 66. Furthermore, using Polymethyl Methacrylate in the aggregate increased the asphalt samples’ height, ranging from 69 to 72 mm. These findings underscore the effectiveness and feasibility of Polymethyl Methacrylate in sustainable asphalt projects. Following highway technical specifications, incorporating Polymethyl Methacrylate in specific proportions in stone mastic asphalt mixtures can enhance their performance, representing a significant step towards sustainable road construction. However, when the concentration of Polymethyl Methacrylate in the bitumen increased, the bitumen formed deteriorated. Therefore, using waste Polymethyl Methacrylate between 4% and 5% can be considered suitable for improving the properties of bitumen against sustainability and temperature concerns.

Open Access: Yes

DOI: 10.1007/978-3-031-81799-1_4

Investigation of the Tensile Strength of Adhesive-Bonded Steels Using Surface Treatments

Zoltán Weltsch Miklós Berczeli Péter Kovács Benjámin Körömi

Publication Name: Materials

Publication Date: 2023-12-01

Volume: 16

Issue: 24

Page Range: Unknown

Description:

This study explores the tensile strength of adhesive joints in steel, focusing on the influence of heat treatment and diverse surface modifications. Results indicate a notable relationship between annealing temperature and tensile strength, with the most favorable outcomes identified at 90 min and 165 °C. Particularly, surfaces treated through turning, sandblasting, and plasma treatment (type C) consistently outperformed other methods. A standout revelation emerged from the turned, sandblasted, and plasma-treated surface (C), showcasing an exceptional tensile strength of 69.06 MPa. Load-holding tests underscored its resilience under diverse load conditions. Surface analyses, including roughness measurements, wetting characteristics, and Scanning Electron Microscope imaging, provided valuable insights into structural transformations induced by different treatments. Chemical composition examinations unveiled significant alterations post-plasma treatment, impacting surface chemistry and contributing to an outstanding tensile strength of 67.63 MPa. In essence, this research offers a glimpse into the nuanced factors influencing adhesive joint strength in steel. The turned, sandblasted, and plasma-treated surface emerges as a promising avenue, sparking further curiosity into the underlying mechanisms propelling superior tensile strength in adhesive joints.

Open Access: Yes

DOI: 10.3390/ma16247663

Implementing Nature-Based Solutions for Treatment of Winery's Wastewater and Sustainable Carbon-Footprint Reduction

Katalin Bene Attila Kálmán Mirtill Szombati

Publication Name: Chemical Engineering Transactions

Publication Date: 2025-01-01

Volume: 121

Issue: Unknown

Page Range: 19-24

Description:

Nature-based solutions can reduce the negative effects of climate change by mitigating the risk of droughts with water retention, increasing infiltration, controlling stormwater runoff and by decreasing atmospheric greenhouse gas emission. The carbon footprint of wastewater treatment plants is significant; the processes are energy-intensive and thus high CO2 emitters. The technology of wine making creates wastewater with extremely high organic content and is coupled with high carbon footprint. Its treatment poses challenges for wastewater plants. This study focuses on the wastewater of winemaking process and its negative effects on carbon-footprint and the wastewater management opportunities of the Csengőd wastewater treatment plant in Hungary. The traditional wastewater treatment and the potential implementation of a poplar plantation were assessed economically and environmentally. The energy consumption and the carbon footprint reduction were compared in the two cases to evaluate their sustainability. Significant energy savings and economic benefits can be achieved by the trade-off between traditional treatment and the use of nature-based solutions. The assessment is novel, because it evaluates all three sustainability pillars, considering: benefits with pay-off through technological processes, environmental aspects and additionally the interests of stakeholders. A poplar plantation can be used to pre-treat wastewater of a winery and thus effectively reduce the high organic concentration – thereby protecting the sensitive technologies of traditional wastewater plants. The trade-off results in annual energy savings of 61,823 kWh and CO2 emission reduction of 16,692 kg, which means financial savings. The direct sustainable benefits are € 287,824 over the 50-year life cycle in a small wastewater plant.

Open Access: Yes

DOI: 10.3303/CET25121004

Online content analysis between bike related attributes and review content in case of Budapest

Marcell Kupi Ferenc Darabos Agnes Horvath

Publication Name: Journal of Infrastructure Policy and Development

Publication Date: 2024-01-01

Volume: 8

Issue: 9

Page Range: Unknown

Description:

Active tourism, in our case bicycle tourism has been a proof of health benefits as well as responsible, sustainable way of transport. As tourist move around to see sights as well as gather experiences, this is a way to be efficient and green effective. This study aims to investigate bicycle tourism in cities, especially focusing on decision making as a bicycle tourist, when it comes to online bookings system, focusing on choosing a hotel. Method: we have used the several methods to analyze the reviews and ratings of hotels on Booking and TripAdvisor. We used hotels from Budapest only, focusing on bicycle tourism within the city. We investigated if there was any demand for bike related services when it comes to booking online. Our results show that there is significant relationship between choosing a hotel and the relevance of bike related services of the accommodation; however, it might not be the primarily decision making, and also following our hypothesis, online travel agents do not offer full package for bikers.

Open Access: Yes

DOI: 10.24294/jipd.v8i9.5078

Corrigendum to “Global trade of medicinal and aromatic plants. A review” [J. Agricult. Food Res. 21 (2025) 101910] (Journal of Agriculture and Food Research (2025) 21, (S2666154325002819), (10.1016/j.jafr.2025.101910))

Mohammad Taghi Ebadi Sahar Zamani Mehran Fathi Ákos Máthé

Publication Name: Journal of Agriculture and Food Research

Publication Date: 2025-08-01

Volume: 22

Issue: Unknown

Page Range: Unknown

Description:

The authors regret We recently reviewed the published version of our article “Global trade of medicinal and aromatic plants: A review” and noticed an error in the units reported in Figs. 1, 3 and 4. Specifically, in the columns related to export and import values, the unit was incorrectly labelled as “million” instead of “thousand". The authors would like to apologise for any inconvenience caused.

Open Access: Yes

DOI: 10.1016/j.jafr.2025.102040