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Working while studying at Széchenyi István University in Gyor

Sándor Remsei Éva Berde

Publication Name: Statisztikai Szemle

Publication Date: 2023-01-01

Volume: 101

Issue: 10

Page Range: 915-932

Description:

In April 2023, we conducted a survey among undergraduate students at the Széchenyi István University of Győr, where almost 500 evaluable questionnaires were collected. We not only wanted to find out the working habits of students in Gyor but also to reveal how much undergraduate students are involved in the platform economy. However, we found examples almost exclusively of food deliveries, although more than 55% of students worked somewhere. Nearly half of the working students were involved in work activities for more than 40 hours per month. This paper focuses on analysing the correlations between working students' salaries and their other characteristics. To this end, in addition to descriptive statistical analysis of the survey results, we use an ordinal logistic estimation.

Open Access: Yes

DOI: 10.20311/stat2023.10.hu0915

Constitutional court attitudes and the COVID-19 pandemic—case studies of Hungary, Serbia, and Croatia

Katinka Beretka Áron Ősze

Publication Name: Frontiers in Political Science

Publication Date: 2025-01-01

Volume: 7

Issue: Unknown

Page Range: Unknown

Description:

The paper analyses the practice of the constitutional courts of Hungary, Serbia and Croatia, in terms of the constitutionality and legality of the normative responses to the COVID-19 pandemic in the countries examined. The goal is to critically present the arguments along which the constitutional courts ensured (or attempted to achieve) the balance between the protection of fundamental rights and the preservation of the public interest and public health in their decisions related to the COVID-19 pandemic; and to deduce whether any similarities can be discovered in the reasoning of the courts or they have adopted a completely different approach from each other. According to the results of the legislative research, regional experience of the examined neighbouring countries with similar legal and political traditions, constitutional court structures, and political leadership styles shows that even in circumstances of a global, uniform health crisis, distinct national reactions might be expected. However, on the other side, the case law research gave a completely different conclusion, supporting the highly similar reasoning of the constitutional courts that almost without exception have given priority to public interest in combating the epidemic over fundamental rights.

Open Access: Yes

DOI: 10.3389/fpos.2025.1540881

Effectiveness of different training models for running performance in female youth triathletes

Zsolt Szakály Zsofia Papai Zsuzsanna Liszkai Marta Wilhelm

Publication Name: Biomedical Human Kinetics

Publication Date: 2025-01-01

Volume: 17

Issue: 1

Page Range: 290-300

Description:

Study aim: The aim of this study was to analyze the effectiveness of polarized (Pol) and threshold (TR) training in youth triathletes (15–18 years). Material and methods: Female youth triathlete subjects taking part in systematic training (n = 42, n(Pol) = 21; n(TR) = 21; at the beginning age(Pol) = 14.63±1.25 years; age(TR) = 14.61 ± 0.89 years) were studied. In this 3-year-long research, anthropometric characteristics and performance were measured, using a spiroergometric, maximal exercise test. Run time spent on a treadmill and physiological data were analyzed. Results: There were no significant differences in anthropometric variables during the study period, but a difference was observed between the two groups in heart rate at the third year. Relative oxygen uptake (rVO2), ventilation (VE) and performance (Time) increased significantly (p < 0.05) in the Pol group, suggesting that this method can also be successful in youth training. Conclusions: Our study results support other research findings demonstrating the effectiveness of polarized training. Further expansion of our sample is necessary to provide guidance for youth triathlon training.

Open Access: Yes

DOI: 10.2478/bhk-2025-0028

Systematic Design and Evaluation of Energy-Efficient Alternatives of Heterogeneous Azeotropic Distillation: Furfural Case Study

Jean Pimentel Ferenc Friedler

Publication Name: Chemical Engineering Transactions

Publication Date: 2021-01-01

Volume: 88

Issue: Unknown

Page Range: 619-624

Description:

Separation of azeotropic mixtures receives special attention for their impact on various significant industrial processes. Because of the non-ideal behaviour of these mixtures, it is impossible to separate them by conventional distillation. Instead of a single distillation unit, a system of multiple operations is to be employed. Heterogeneous azeotropic distillation (HAD) is an example of this kind of systems, where entrainers are applied to modify the behaviour of the mixture. The selection of the best separation system is a key objective during the synthesis of the process network. However, synthesis of HAD is especially difficult because of the complex interaction between its continuous and discrete features. Therefore, traditional separation network synthesis tools are incapable of solving this problem. In this work, the properties of the ternary vapor-liquid-liquid equilibrium diagram are exploited for systematically identifying plausible operating units that perform the separation of the azeotrope. Subsequently, energy consumption of the entire network is estimated through rigorous simulation. The P-graph framework is employed to represent the system’s structure. Additionally, its combinatorial algorithms generate a rigorous superstructure for the synthesis problem, and the set of n-best designs that minimize energy consumption. The method is illustrated by synthesizing the dehydration of furfural through HAD. The results demonstrate that it constitutes a valuable tool for the designer by being effective in the systematic identification and assessment of HAD alternatives.

Open Access: Yes

DOI: 10.3303/CET2188103

Encountering the cognitive and noetic endeavors of macedon renaissance : PPart I: Macedonian renaissance and system of depicting and meaning for the picture of sephanus rex on the coronation mantle (Royal Casula) of St Stephen of Hungary

Peter Varlaki Judit Ida Steiner-Varlaki Péter Baranyi

Publication Name: 11th IEEE International Conference on Cognitive Infocommunications Coginfocom 2020 Proceedings

Publication Date: 2020-09-23

Volume: Unknown

Issue: Unknown

Page Range: 523-532

Description:

The paper discusses artworks of Royal (Coronation) Robe (Casula) of St Stephen of Hungary concerning the picture of the author-king as Sephanus Rex (sic!) in the style of the Macedonian Renaissance representing noetic and pneumatic experiences renewing the traditional Christian interpretations. Here the main purpose of the fascinating Artifact is the explanation of the historical and structural background in the old Greek noetic and mystical Judaist pneumatic tradition for the spiritual support of the eucharistic liturgy of the Asterisk-disc.

Open Access: Yes

DOI: 10.1109/CogInfoCom50765.2020.9237839

Improving social life and communication of people with disabilities by using internet facilities

Z. Puklus Attila Kürtösi Adina Ionescu Ileana Hamburg

Publication Name: Ceur Workshop Proceedings

Publication Date: 2008-12-01

Volume: 415

Issue: Unknown

Page Range: Unknown

Description:

This paper presents some European initiatives developed within the Socrates Programme in order to support people with disabilities to use the new technologies. The disadvantages of the existing software designed for people with visual deficiencies together with some criteria that have to be considered in developing virtual learning applications for visually impaired are pointed out. The paper includes a proposal for improvement of the existing software for searching information and communication by people with disabilities, the first version of the FORThSIGHT Programme, elaborated in the framework of one Grundtvig 2 Learning Partnership.

Open Access: Yes

DOI: DOI not available

How the Influence of Psychoactive Substances Impacts the Road Safety of Drivers †

István Lakatos Emese Sánta Gábor Patocskai Petra Szűcs

Publication Name: Engineering Proceedings

Publication Date: 2025-01-01

Volume: 113

Issue: 1

Page Range: Unknown

Description:

In Hungary, the consumption of any alcoholic beverage before driving is illegal. A person is considered drunk if they have a blood alcohol concentration of 0.5 g per liter or more. The situation regarding drug use is also disappointing. This research analyses these effects on transport and their “outcome” by evaluating analyses based on police data, driver training data, and experimental data. The research aims to further raise awareness of the public health importance of this problem through a case–control study. Descriptive and correlational, statistical calculations were performed with a significance value of p < 0.05. Between 2019 and 2023, there were 10–13.000 drunk driving offenses and 1.000–1.300 drunk-driving accidents on the roads each year, most of which occurred in the capital and caused minor injuries. The results will be used to discover synergies to improve road safety.

Open Access: Yes

DOI: 10.3390/engproc2025113033

Investigation of the influencing soil parameters on the air entry values in soil-water characteristic curve of compacted heaving soils

Elizabeth Theron Armand Augustin Fondjo Richard P. Ray

Publication Name: Civil Engineering and Architecture

Publication Date: 2021-01-01

Volume: 9

Issue: 1

Page Range: 91-114

Description:

The air-entry value (AEV) is a fundamental parameter of the soil-water characteristic curve (SWCC). AEV is the minimum matric suction value required for entry of air into soil voids. The primary objective of this research work is to assess the impact of geotechnical index properties, swelling properties, mineral composition on AEV of compacted heaving soils, and discuss how they affect AEV. Soil properties were investigated through lab tests such as grain size distribution (GSD), specific gravity, Atterberg limits, linear shrinkage, free swell index, free swell ratio, X-ray diffraction, compaction test, and soil suction measurement. SWRC Fit program was used to perform non-linear fitting of the SWCC based on models VG, DB, FX, LN, and BL. Surface plot of data was used to characterize the impact of soil properties on AEV. It was observed that AEV is ranging from 10 kPa to 20.20 kPa, models DB and BL gives the best fitting SWCC. The percent of smectite mineral exhibits a significant impact on AEV. Swelling properties such as free swell index and free swell ratio influence the AEV with a respective determination coefficient of 85.72%, 88.68%. The plasticity index, linear shrinkage, specific gravity, and dry unit weight impact the AEV with a respective determination coefficient of 95%, 95.45%, 90.43%, 94.29%. The fine-grained content, clay fraction, void ratio, and water content influence the AEV with a respective determination coefficient of 97.95%, 84.89%, 80%, 94.31%. The finer the soil, the higher the AEV. The activity of clay and percent of illite mineral exhibit a marginal effect on the AEV.

Open Access: Yes

DOI: 10.13189/cea.2021.090108

Banking applications of FCM models

Miklós F. Hatwágner Gyula Vastag László T. Kóczy Vesa A. Niskanen

Publication Name: Studies in Computational Intelligence

Publication Date: 2019-01-01

Volume: 796

Issue: Unknown

Page Range: 61-72

Description:

Fuzzy Cognitive Map (FCMs) is an appropriate tool to describe, qualitatively analyze or simulate the behavior of complex systems. FCMs are bipolar fuzzy graphs: their building blocks are the concepts and the arcs. Concepts represent the most important components of the system, the weighted arcs define the strength and direction of cause-effect relationships among them. FCMs are created by experts in several cases. Despite the best intention the models may contain subjective information even if it was created by multiple experts. An inaccurate model may lead to misleading results, therefore it should be further analyzed before usage. Our method is able to automatically modify the connection weights and to test the effect of these changes. This way the hidden behavior of the model and the most influencing concepts can be mapped. Using the results the experts may modify the original model in order to achieve their goal. In this paper the internal operation of a department of a bank is modeled by FCM. The authors show how the modification of the connection weights affect the operation of the institute. This way it is easier to understand the working of the bank, and the most threatening dangers of the system getting into an unstable (chaotic or cyclic state) can be identified and timely preparations become possible.

Open Access: Yes

DOI: 10.1007/978-3-030-00485-9_7