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Found 6525 publications

Biomechanical effects of maximal footwear on running: a systematic review and network meta-analysis

Yaodong Gu Gusztáv Fekete Minjun Liang Zixiang Gao Wenlong Li Chen Hu Zifan Xia

Publication Name: Footwear Science

Publication Date: 2026-01-01

Volume: 18

Issue: 1

Page Range: 83-98

Description:

Running is widely recognised for its substantial health benefits; however, it is frequently associated with lower limb injuries caused by repetitive impact forces. To mitigate such injuries, maximal footwear has been developed; nevertheless, evidence comparing its biomechanical effects with those of other footwear types remains inconclusive. A Bayesian network meta-analysis of 14 studies (222 participants) was conducted, based on systematic searches of PubMed, Web of Science, the Cochrane Library, Scopus, and Embase (from inception to 12 November 2024). Multiple biomechanical parameters were evaluated, including vertical average loading rate, vertical instantaneous loading rate, impact peak, active peak and ankle peak eversion. The results revealed a complex and sometimes contradictory biomechanical profile for maximal footwear. Specifically, maximal footwear resulted in a significantly higher impact peak compared to both conventional and minimal footwear. In contrast, for the vertical average loading rate, it performed significantly better than minimal footwear but showed no significant difference compared to conventional footwear. For other impact metrics, no significant differences were observed. Notably, maximal footwear was associated with a significantly lower ankle peak eversion compared to minimal footwear, suggesting a potential for greater control of ankle motion.

Open Access: Yes

DOI: 10.1080/19424280.2025.2604840

Measuring Corporate Compliance with the SDGs Based on the GRI’s ESG Reporting Methodology

Árpád Tóth Péter Molnár Bence Lukács

Publication Name: Journal of Sustainability Research

Publication Date: 2025-01-01

Volume: 7

Issue: 1

Page Range: Unknown

Description:

Background: This research examines the efficiency of ESG reporting in corporate contributions toward achieving the SDGs, relative to the literature gaps and sectoral differences in reporting practices. It also highlights that full ESG disclosure is invariably instrumental in ensuring corporate transparency and accountability. Methods: The study used the GRI framework to analyze SDG compliance in sustainability reports from companies in the technology, automotive, energy, and health sectors. Results: Key findings include significant variations in SDG compliance across industries: the automotive sector demonstrated the highest compliance at 85%, while the technology sector showed the lowest at 49%. The study also found a notable difference between reported and substantiated SDGs, indicating that many companies engage in ‘rainbow washing’ or ‘cherry-picking’ SDGs to fit their agendas without fully integrating them into their strategies. The research concludes that although the GRI framework provide. Conclusions: The study urges the combination of other standards, such as ESRS and SASB, together with more intense regulatory frameworks and industry-specific guidelines to increase comparability and the credibility of the reports on sustainability.

Open Access: Yes

DOI: 10.20900/jsr20250010

Investigation of the tribological properties of nano-scaled ZrO2 and CuO additive in automotive lubricants

Jan Knaup D. Tóth

Publication Name: Iop Conference Series Materials Science and Engineering

Publication Date: 2020-08-25

Volume: 903

Issue: 1

Page Range: Unknown

Description:

To improve the fuel efficiency and the lifetime of the internal combustion engines, the lubricants and their additives have to be developed further. One of the possible future engines lubricants can be the nano-sized ceramic particles, which can provide positive tribological properties also in the presence of non-metallic surface materials. This paper presents the results of investigations with the help of ZrO2 and CuO nano-sized ceramic particles. To define the tribological properties of these additives, lubricant samples with different additive-concentrations were prepared and tribologically analysed. The frictional losses of these lubricant samples were analysed by a ball-on-disk sliding friction machine. The worn surface on the test specimens was analysed by different high-resolution microscopes. To define the functional mechanisms of the nano-additives, the worn surfaces were investigated by high resolution scanning electron microscopes. The ZrO2 additive has experimentally shown an excellent wear reduction property (over 40% wear reduction compared with the neat Group 3 base oil) at the optimum mixing concentration of 0.4wt%. Both frictional and wear reduction properties could be determined at the application of CuO additive (15-15% friction coefficient and wear scar diameter reduction) at its optimum concentration (0.5wt%). A copper-yellow layer can be seen on the worn surface of the disc specimens with CuO, which indicates the mechanism of chemical transformation to elementary copper from the cupric-oxide nanoparticle and this elementary copper can be melted on the surface, because of the applied high temperature and high loads during the experiments.

Open Access: Yes

DOI: 10.1088/1757-899X/903/1/012015

Empowering resilience: celebrating and accelerating women’s transformative contributions to plant abiotic stress research (2010–2025)

Szilvia Veres Nevien Elhawat Éva Domokos‑Szabolcsy

Publication Name: Frontiers in Plant Science

Publication Date: 2026-01-01

Volume: 17

Issue: Unknown

Page Range: Unknown

Description:

The growing incidence of abiotic stresses ranging from soil salinity and prolonged drought to increasingly frequent temperature extremes continues to challenge global agriculture and jeopardize food security. As these pressures intensify under a changing climate, the demand for resilient crop systems and deeper biological understanding is greater than ever. Over the past decade and a half (2010–2025), women scientists have played a pivotal yet often under-recognized role in advancing plant abiotic stress research. Their contributions span a wide scientific spectrum, from elucidating redox-based signaling networks and stress-responsive physiological pathways to pioneering multi-omics approaches and developing innovative biotechnological tools aimed at improving crop tolerance. This review synthesizes the scientific progress achieved through research efforts led by women as first authors, corresponding authors, or principal investigators, highlighting exemplary studies and emerging themes that have shaped the field. Alongside these accomplishments, the review addresses persistent structural and institutional barriers that limit women’s participation in STEM, particularly within plant sciences, and evaluates global initiatives designed to promote equity and inclusion in research environments. By integrating scientific advances with social and institutional perspectives, the review outlines a strategic roadmap to support and amplify innovation driven by women scientists, including as leaders in research teamsin plant stress biology. Ultimately, fostering gender equity in this discipline is more than an ethical responsibility it is a necessary foundation for building sustainable, climate-resilient agricultural systems for the future.

Open Access: Yes

DOI: 10.3389/fpls.2026.1788373

Effect of Energy Density on the Mechanical Properties of 1.2709 Maraging Steel Produced by Laser Powder Bed Fusion

Imre Fekete Gusztáv Fekete István Hatos Hajnalka Hargitai

Publication Name: Materials

Publication Date: 2024-07-01

Volume: 17

Issue: 14

Page Range: Unknown

Description:

The unusual combination of the fundamentally contradictory properties of high tensile strength and high fracture toughness found in maraging steel makes it well suited for safety-critical applications that require high strength-to-weight materials. In certain instances, additive manufacturing (AM) has produced materials that may be desirable for safety-critical applications where impact toughness is a key property, such as structural parts for the aerospace industry or armor plates for military applications. Understanding the influence of process parameters and defect structure on the properties of maraging steel parts produced via laser powder bed fusion (LPBF) is a fundamental step towards the broader use of AM technologies for more demanding applications. In this research, the impact energy of V-notched specimens made of 1.2709 maraging steel produced by LPBF was determined via Charpy impact testing. Specimens were produced using different processing parameter sets. By combining the process parameters with the porosity values of the parts, we demonstrate that an almost full prediction of the impact properties can be achieved, paving the way for significantly reducing the expenses of destructive testing.

Open Access: Yes

DOI: 10.3390/ma17143432

In Silico Benchmarking of Fatigue Life Estimation Models for Passive SMD Solder Joints Under Thermal Cycling

Ambrus Zelei Gusztáv Fekete Antal Bakonyi

Publication Name: Applied Mechanics

Publication Date: 2024-12-01

Volume: 5

Issue: 4

Page Range: 877-907

Description:

Related to microelectronics’ reliability, lifetime estimation methods have gained importance, especially for surface-mounted devices. The virtual testing of electronic assemblies necessitates the geometry modeling and finite element analysis of the solder joint. The effect of the simplification of the solder geometry on the predicted lifetime is an open question. Furthermore, there is still not yet straightforward guidance for the choice of the material model and fatigue lifetime model. In this study, the impact of the geometry input method, the material model and the lifetime model choice is investigated on two different surface-mounted capacitors in a simulation-based benchmark analysis under thermal cyclic loading. Four different types of solder geometry modeling approaches are compared, among which one is a physics-based approach. Ten different fatigue models founded on plastic and viscoplastic material models are benchmarked. The results show that the component standoff height and the solder volume have a positive effect on the lifetime, while the capacitor size has a slightly negative effect on the lifetime. The results also suggest that approximate geometries can be used to replace the physics-based model with a restriction for the minimum standoff height.

Open Access: Yes

DOI: 10.3390/applmech5040049

Parliaments in Europe-International Conference on the Occasion of Day of Parliamentarianism

László Tóth Viktória Verebélyi

Publication Name: International Journal of Parliamentary Studies

Publication Date: 2024-01-01

Volume: 4

Issue: 2

Page Range: 268-273

Description:

The Centre for Parliamentary Research at the Ferenc Deák Faculty of State and Law of Széchenyi István University organized between 9-10. May 2024 for the ninth time this year an overview of Hungarian and international parliamentary research within the framework of the Day of Parliamentarianism conference series. On the first day of the two-day international conference "Parliaments in Europe", researchers shared their research results in Hungarian, while on the second day, attendants could listen to lectures in English.

Open Access: Yes

DOI: 10.1163/26668912-bja10092

Comparison of Carbon-Dioxide Emissions of Diesel and LNG Heavy-Duty Trucks in Test Track Environment

András Háry Gergő Sütheö

Publication Name: Clean Technologies

Publication Date: 2024-12-01

Volume: 6

Issue: 4

Page Range: 1465-1479

Description:

Environmental protection and greenhouse gas (GHG) emissions are getting increasingly high priority in the area of mobility. Several regulations, goals and projects have been published in recent years that clearly encourage the reduction of carbon dioxide (CO2) emission, the adoption of green alternatives and the use of renewable energy sources. The study compares CO2 emissions between conventional diesel and liquefied natural gas (LNG) heavy-duty vehicles (HDVs), and furthermore investigates the main influencing factors of GHG emissions. This study was carried out in a test–track environment, which supported the perfect reproducibility of the tests with minimum external influencing factors, allowing different types of measurements. At the results level, our primary objective was to collect and evaluate consumption and emission values using statistical methods, in terms of correlations, relationships and impact assessment. In this research, we recorded CO2 and pollutant emission values indirectly via the fleet management system (FMS) using controller area network (CAN) messages. Correlation, regression and statistical analyses were used to investigate the factors influencing fuel consumption and emissions. Our scientific work is a unique study in the field of HDVs, as the measurements were performed on the test track level, which provide accuracy for emission differences. The results of the project clearly show that gas technology can contribute to reducing GHG emissions of HDVs, and LNG provides a reliable alternative way forward for long-distance transportation, especially in areas of Europe where filling stations are already available.

Open Access: Yes

DOI: 10.3390/cleantechnol6040070

Preparation of soft magnetic composite from Fe-6.9wt%Si by different heat treatment strategies.

Ibolya Zsoldos L. K. Varga B. Kocsis

Publication Name: Iop Conference Series Materials Science and Engineering

Publication Date: 2020-08-25

Volume: 903

Issue: 1

Page Range: Unknown

Description:

Present study investigated the effect of isothermal heat treatment strategies between 800 °C and 1150 °C on the magnetic properties of toroidal samples made from Fe-6.9wt%Si powder. The samples were prepared by classical powder metallurgy method since the classical sheet forming methods no longer work with the high silicon content. Our results presented here are part of a series of comparative experiments where we study the effectiveness of the insulating layers created during and before the compacting of soft magnetic composites (SMCs). Our goal was to create a soft magnetic composite made of ferromagnetic and inorganic insulating material with a frequency limit already in the megahertz range and a Snoek limit of few gigahertz. In the case of samples made from Fe-6.9wt%Si powder, the computed tomography results showed that significant porosity is to be expected after pressing. Its positive effect occurred during the heat treatment in the atmospheric agent, where silicon is precipitated and deposited on the surface of the particle. This coating is an electrically insulating layer at the grain boundaries. Depending on the heat treatment strategy, 1 or 2 ferromagnetic phases were observed. The frequency limit approached the target values, but due to the low value of static permeability, the Snoek limit did not reach the gigahertz range. However, there is a significant improvement in magnetic properties compared to the heat-treated samples in a protective gas.

Open Access: Yes

DOI: 10.1088/1757-899X/903/1/012042