VGTU Journals (Vilnius Gediminas Technical University - Vilnius Tech)
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Reducing CO2 emissions by improving road design: a driving simulator study
No full textIn the last decade, the causes of Greenhouse Gas (GHG) emissions were widely studied, to delete or, at least, mitigate them. In the road context, as reasonable, greater importance was assigned to the vehicles, since huge traffic flows, including high percentages of trucks, determine negative impacts on the environment. On the contrary, the role of the road infrastructure has always been considered marginal. It was thought as a functional element on which the traffic flows move, without evaluating the role of its geometrical characteristics on exhaust gas emissions. The proposed research aims to verify whether some road features, related to its horizontal geometry, influence the carbon dioxide production of vehicles or, on the contrary, if it is not sensitive to the different geometrical compositions. A driving simulator gives the opportunity to calculate the emissions from fuel consumption data, in turn, calculated through the engine mapping of an ordinary vehicle. The proposed procedure may be easily applied to any road context and may represent a further checking element for the infrastructure efficiency, in terms of environmental impacts. The results, derived from a test phase in a simulated environment and obtained using 3 different one-way ANOVAs, allowed the authors to define some interesting conclusions. The trend of the carbon dioxide function depends on curve radius and lengths and on tangent length; therefore, an opportune alignment design can effectively contribute to control emission values. The experiments confirmed that designing a consistent road is fundamental, but this cannot be deduced by traditional literature models
The effects of fınancıal pressure polıcıes on economıc growth: The case of OECD countries
No full textIn this study, the effects on economic growth of financial pressure policies applied in OECD countries are examined. For this purpose, the “financial pressure index (FPI)” was calculated by using 10- year data for 2010–2020 from 37 OECD countries and “growth rates” were obtained. The FPI was calculated using (i) loans extended to the pri¬vate sector, (ii) loans extended to the central government, (iii) interest payments and (iv) inflation rate data. In calculating FPI, first of all, the data was standardized. Following the standardization process, the data was weighted using Principal Component Analysis (PCA) to calculate the FPI. After weighting the data, each standardized value was aggregated by multiplying it by its own weighted value, and the final FPI was ultimately calculated. Economic growth rates were calculated as a percentage of GDP. Finally, the analysis was carried out by comparing the calculated FPI with the economic growth rates. According to the results of the analysis, the coefficient of FPI was statistically significant (p < 0.05). In this context, every 1-point increase in FPI reduced GDP by 0.178 points.
First published online 17 September 202
Assessing the risks of fintech development: the case of online illegal capital raising
No full textThis study examines the impact of financial technology (FinTech) on online illegal capital raising (ICR) in China. Using a large dataset of court judgments from China Judgment Online from 2014 to 2019, we observe a steady increase in the number and proportion of defendants involved in online ICR cases. Our empirical analysis shows that FinTech contributes significantly to the increase in online ICR, particularly in regions with low opportunity costs of crime and limited access to traditional financial services. The findings remain robust to different FinTech proxies, sample adjustments, and considerations of potential endogeneity. Weak regulatory oversight and higher potential criminal returns are key channels through which FinTech promotes online ICR. These findings highlight the need for stronger financial regulation, especially in high-risk regions, alongside efforts to improve public awareness of online investment risks. Strengthening regulation while promoting the positive role of FinTech in financial development is critical to mitigating emerging financial risks.
First published online 15 April 202
The technology innovation paradox in Asia’s leading innovative economies: the importance of renewable energy and green financing
No full textThe present study investigates the influence of green energy, technological innovation, financial development, natural resources, trade, and economic growth on environmental quality in four technologically innovative economies in Asia using data from 1990 to 2021. By adopting a holistic approach, it addresses gaps in the literature that often focus on isolated factors or regions. The findings provide actionable insights for policymakers to reconcile economic growth with ecological sustainability, offering a blueprint for sustainable development in Asia’s technological hubs. The Panel ARDL approach is used to evaluate the impacts in both the long and short term. Furthermore, we performed robustness tests using panel least squares, panel FMOLS, and panel DOLS techniques. The study’s findings indicate that technological innovation, financial development, and trade all have a long-term positive impact on environmental quality in Asia’s technologically innovative economies. However, green energy, natural resources, and economic progress had a negative impact on CO2 emissions. The findings from panel least squares, panel FMOLS, and DOLS also showed that technological innovation, financial development, and trade enhance the environmental quality. This investigation aims to assist policymakers in creating comprehensive plan that promotes environmental sustainability via technological improvements and renewable energy sources, with an emphasis on economic growth.
First publihed online 05 June 202
Approximation of a system of nonlinear Carrier wave equations by approximating the Carrier terms with their integral sums
No full textThis paper is concerned with the approximation of a system of nonlinear Carrier wave equations (CEs) by approximating the Carrier terms with their integral sums. At first, under suitable conditions, the linear approximate method, the Galerkin method, and compactness arguments provide the unique existence of a weak solution (un,vn) of the problem (Pn), for each n ∈ N, for a system of nonlinear wave equations related to Maxwell fluid between two infinite coaxial circular cylinders. Next, we prove that {(un,vn)}n converges to the weak solution (u,v)of the problem for a system of CEs in a suitable function space. This proof is done by using the compactness lemma of Aubin-Lions and the method of continuity with a priori estimates. We end the paper with a remark related to open problems
Analysis study of hybrid Caputo-Atangana-Baleanu fractional pantograph system under integral boundary conditions
No full textThis manuscript investigates the qualitative analysis of a new hybrid fractional pantograph system involving AtanganaBaleanu-Caputo derivatives, complemented by hybrid integral boundary conditions. Dhage’s fixed point theorem is employed to investigate the existence theorem of the solutions, while uniqueness is proven by using Perov’s approach and Lipschitz’s matrix. The Hyers-Ulam (HU) stability is also demonstrated using the Lipschitz’s matrix and techniques from nonlinear analysis. Finally, illustrative example is enhanced to examine the effectiveness of the obtained results
Effects of technology-enhanced active learning on the musical creativity of gifted students
No full textTechnology-enhanced active learning increases not only gifted students’ interest in learning but also facilitates the promotion of their musical creativity. This study uncovers gifted students’ attitude toward technology-enhanced active learning and its effect on their musical creativity. This mixed-methods study used an experimental design followed by semi-structured interviews. We developed a control group (n = 19) and an experimental group (n = 21) of the randomly selected gifted students’ age of 11–13 years old from science and art centres institution at secondary schools in Turkey. We designed an intervention to deliver music curricula through technology-enhanced active learning for the experimental group and without technology-enhanced active learning for the control group. Three experts used a rubric to measure the musical creativity of gifted students. A pre-test and post-test indicated that there was an effect of technology-enhanced active learning on the musical creativity of gifted students. Semi-structured interviews with students also suggested that gifted students have positive attitude towards technology-enhanced active learning. Students have a positive attitude towards the technology-enhanced active learning approach owing to five reasons: finding education programs beneficial, self-expression, improvement in composing skills, improvement in using technology while composing, and eagerness to continue technology-enhanced active music learning
The capacity of absorption and the management of human resources in asymmetrical strategic alliances: the case of Moroccan SMEs
No full textPurpose – The aim of this work is to analyze human resources mechanisms in order to enhance the absorption capacity of SME in strategic alliances with foreign partners, the goal being to favor the transfer of know-how to these enterprises.
Research methodology – The methodology applied is quantitative, based on a questionnaire addressed to 108 SME. SPSS 25 software was used to analyze the result.
Findings – The results of the study underline the critical role employees’ play in the knowledge transfer process by dwelling on the need of an absorption and assimilation capacity since businesses with such capacities are conducive to the acquisition, putting into use and development as well as the creation of new skills and know-how.
Research limitations – The quantitative approach of this research could be complemented by qualitative analysis. Additionally, generalizing the results from a sample of SMEs opens avenues for future research in other developing countries. Temporal and contextual extension could also enhance the relevance of the conclusions.
Practical implications – Our results could be used to provide key indicators for managers of SMEs engaged in strategic alliances. The guidelines aim to streamline the transfer, acquisition, and development of new skills and know-how from foreign partners.
Originality/Value – This study innovatively clarifies the administration of human resources in SMEs’ in asymmetrical strategic alliances, offering valuable insights for research into management practices
Determinants of the sustainability of capability-based culinary businesses: evidence from urban areas in Central Java Province
No full textPurpose – Amidst the increasing public awareness of the need for environmentally friendly products and social concerns, sustainability practices can be utilized as a source of competitive advantage for businesses in the culinary industry. The purpose of this study is to investigate the effects of entrepreneurial marketing, transformation capability, and financial capability on sustainability.
Research methodology – This study was based on field survey data involving 315 culinary business actors in the cities of Semarang, Salatiga, and Surakarta, Central Java Province. The data analysis used the Partial Least Squares Structural Equation Modeling (PLS-SEM) method.
Findings – The determinants of sustainability predicted through the formulation of nine hypotheses are mostly proven empirically. Entrepreneurial marketing, transformation capability, and financial capability are demonstrated to have a positive effect on all dimensions of sustainability including economic, environmental, and social performance.
Research limitations – The objects of this research were limited to culinary business actors in urban areas so that only limited generalizations could be made. Future studies can be directed to involve business actors in rural areas so that they can capture the dynamics of sustainability practices better.
Practical implications – A policy that can be proposed based on research findings to the government in order to improve sustainability practices is to improve the capabilities of culinary business actors through training and mentoring that emphasize the importance of creating customer value, renewing company operations, and having financial literacy.
Originality/Value – This study fills the research gap by introducing a capability-based sustainability determinant model
“Quo Vadis urban areas?”: (Re)thinking the future of urban areas using interpretive structural modeling
No full textThe world’s population continues to grow at an unprecedented rate, with urban areas experiencing a more rapid rise in population density than rural regions. This demographic shift compels decision-makers to address pressing urban challenges and rethink future structures of cities. However, a vision for global sustainable urban growth remains elusive, as planners often lack comprehensive, credible and dynamic models to guide decision-making. The main purpose of this study is to propose a process-oriented methodology that integrates cognitive mapping, interpretive structural modeling (ISM) and a matrice d’impacts croisés multiplication appliquée à un classement (MICMAC) analysis to evaluate and prioritize key determinants of urban development. Group work sessions involving decision-makers from diverse fields were conducted to identify critical variables influencing urban development. Unlike traditional models, the proposed approach emphasizes participatory decision-making. By combining cognitive mapping and ISM-MICMAC, this study enables the identification of causal relationships among variables and allows decision-makers to anticipate trends and prioritize challenges effectively. The findings were further validated by an external expert to ensure neutrality and reliability. Overall, this study provides a theoretical contribution to decision-making methodologies while offering a practical framework for urban planners to influence cities toward a sustainable future