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Found 6674 publications
Work from home practices as corporate strategy- an integrative review
Publication Name: Heliyon
Publication Date: 2023-09-01
Volume: 9
Issue: 9
Page Range: Unknown
Description:
The Covid 19 pandemic led to major changes at the individual, organisational and institutional levels of policy, productive functions, and organising. During Covid 19 morbidity, public institutions enforced social isolation, mandatory self-isolation, quarantines, and administrative regulatory lockdowns, which led to a movement away from the physical, material world and into an all-consuming digital universe. With growing interest in work-from-home (WFH) opportunities, this article provides an integrative review of 107 papers. It comprises the bibliometric analysis and manual review of the articles, on the basis of which we present an elaborative discussion and agenda for future research. According to the analysis, WFH looks a tad of a double-edged sword in that it may have major but unintended repercussions for institutions, and organizations as well as hidden, positive as well as negative consequences for individuals/employees. One of the significant insight from our analysis was the absence of HR function's strategic or operational input or oversight during corporate WFH strategies. We suggest several theoretical frameworks for further developing, theorizing, and empirically testing various aspects of WFH. Further, we recognise that WFH is becoming increasingly visible as a result of the pandemic scenario and significant technical advancements, which must be reflected in the research. Finally, because WFH represents a significant disruption in how organizations produce work and manage it, we propose employee and managerial consequences as future research agendas.
Open Access: Yes
Cooperation between the health visitor and the physician as one of the pillars of the 108-year-old Hungarian Health Visitor Service
Publication Name: Orvosi Hetilap
Publication Date: 2023-08-20
Volume: 164
Issue: 33
Page Range: 1311-1318
Description:
Introduction: Despite the more than 100-year history of the Hungarian Health Visitor Service, no study has yet been carried out that looked back at the cooperation between health visitors and physicians. Objective: Our aim was 1) to explore the professional advances of the health visitor service and the cooperation between health visitor and physician by examining historical documents, legal and professional regulations governing the work of health visitor, furthermore, 2) to investigate whether there are compulsory training elements in today's training for health visitors that prepare students for health visitor and physician collaboration, moreover, 3) to search for old tools and documents used by health visitors and doctors in the North-West of Transdanubia. Method: A literature search was carried out to identify documents relating to the development of the work of health visitors, the cooperation between health visitors and physicians, past and current legal and professional regulations, the current regulation on training of health visitors. Through field research, we tracked down old tools and documents of health visitors and physicians. Results: The establishment of the Hungarian Health Visitor Service is associated with the names of professors of medicine. The historical documents and regulations testify the development of the work of the health visitor, the expansion of her competences and the importance of the health visitor and physician cooperation. The training competences required for the cooperation between health visitors and physicians, health visitors and specialists are regulated by the regulation on training of health visitors. We have found many old objects and documents used in the work of the health visitor and doctor. Discussion: The documents that have preserved almost invariably describe the health visitor as a person working alongside the physician, in cooperation with the physician. Nowadays, the regulation of cooperation covers for all specialties in the field of health visitor. Conclusion: Based on our research, it is fair to say that the health visitor-physician cooperation is an important pillar of the 108-year-old Hungarian Health Visitor Service.
Open Access: Yes
Tribological Investigation of the Effect of Nanosized Transition Metal Oxides on a Base Oil Containing Overbased Calcium Sulfonate
Publication Name: Lubricants
Publication Date: 2023-08-01
Volume: 11
Issue: 8
Page Range: Unknown
Description:
In this study, copper(II) oxide, titanium dioxide and yttrium(III) oxide nanoparticles were added to Group III-type base oil formulated with overbased calcium sulfonate. The nanosized oxides were treated with ethyl oleate surface modification. The tribological properties of the homogenized oil samples were tested on a linear oscillating tribometer. Friction was continuously monitored during the tribological tests. A surface analysis was performed on the worn samples: the amount of wear was determined using a digital optical and confocal microscope. The type of wear was examined with a scanning electron microscope, while the additives adhered to the surface were examined with energy-dispersive X-ray spectroscopy. From the results of the measurements, it can be concluded that the surface-modified nanoparticles worked well with the overbased calcium sulfonate and significantly reduced both wear and friction. In the present tribology system, the optimal concentration of all three oxide ceramic nanoadditives is 0.4 wt%. By using oxide nanoparticles, friction can be reduced by up to 15% and the wear volume by up to 77%. Overbased calcium sulfonate and oxide ceramic nanoparticles together form a lower friction anti-wear boundary layer on the worn surfaces. The results of the tests represent another step toward the applicability of these nanoparticles in commercial engine lubricants. It is advisable to further investigate the possibility of formulating nanoparticles into the oil.
Open Access: Yes
Analytical and Organoleptic Evaluation of Caffeinated Grape Must
Publication Name: Appliedchem
Publication Date: 2026-06-01
Volume: 6
Issue: 2
Page Range: Unknown
Description:
This study aimed to produce, analyze, and evaluate the consumer acceptance of caffeine-enriched (15, 30, 60, and 90 mg/100 mL) grape must, which does not contain any added sweeteners or preservatives, to meet today’s popular health-conscious consumer trends. Regarding acid composition, the musts contained malic acid (426.96–491.58 mg/100 mL) and succinic acid (74.53–84.79 mg/100 mL). Musts are regarded as water-soluble sugars, containing only glucose (6158.81–9417.09 mg/100 mL) and fructose (6798.37–10,482.53 mg/100 mL), which are typical in fruits. The must’s TPC and TAC contents were determined to be between 11.42 and 14.14 mg GAE/100 mL, and 8.14 and 11.80 mg AAE/100 mL, respectively. During the analysis of caffeine content, recovery values of 93.89–96.98% were determined. The must samples containing 60 and 90 mg/100 mL caffeine had too intense a bitter flavor; thus, the enjoyment value of the products was reduced based on consumer feedback. The must containing 15 mg/100 mL of caffeine had the most favorable organoleptic properties.
Open Access: Yes
Numerical Modeling of Hydraulic Failure Mechanisms in Levees, River Embankments, and Earth Dams Under Climate-Induced Flood Conditions: A Systematic Literature Review
Publication Name: Applied Sciences Switzerland
Publication Date: 2026-06-01
Volume: 16
Issue: 11
Page Range: Unknown
Description:
Hydraulic failure in levees, river embankments, and earth dams represents a critical challenge in flood risk management, particularly under increasing climate-induced hydrological stresses. This study presents a systematic literature review of numerical, probabilistic, and data-driven modeling approaches used to assess hydraulic failure mechanisms in earthen flood-protection structures. A structured search was conducted in Scopus, Web of Science, and Taylor & Francis for peer-reviewed English-language journal articles published between 2015 and 2026. Following duplicate removal, title and abstract screening, and full-text eligibility assessment, 65 studies were included in the final synthesis. Based on the synthesis, an integrated mechanism–model–uncertainty framework is developed to relate hydraulic loading conditions, soil response, dominant failure mechanisms, appropriate numerical modeling approaches, uncertainty treatment, and climate-related stressors. This study provides valuable insights for engineers, researchers, and policymakers by identifying key advances, limitations, and future research directions for improving levee resilience. Study quality was assessed using a structured quality assessment rubric. The review protocol was not registered in a public registry, and no external funding was received.
Open Access: Yes
DOI: 10.3390/app16115572
Data-driven modelling of thermal conductivity in electrically aligned PDMS–diamond composites with experimental verification
Publication Name: Applied Thermal Engineering
Publication Date: 2025-12-01
Volume: 280
Issue: Unknown
Page Range: Unknown
Description:
Polymer-based composite material optimization is a key technology for achieving the desired thermal management in heat conduction sheets used in electronics and aerospace. Diamond particles are widely used as thermally conductive fillers in a liquid of poly di-methyl siloxane (PDMS) matrix because of their unique thermophysical properties. Electrical alignment is a powerful approach for filler alignment to achieve higher thermal conductivity. Meanwhile, practical experiments require substantial time, resources and consumable energy due to extensive testing. Therefore, it is essential to develop a highly robust predictive model for estimating thermal conductivity. This paper proposes a data-driven-based model that investigates a novel decision tree (DT) regression model for predicting thermal conductivity based on electrical alignment parameters, aiming to identify the optimal experimental conditions that achieve higher thermal conductivity. In this study, electrical alignment parameters, namely voltage, frequency, and rotational speed, are selected as descriptors for modelling and computing thermal conductivity. Correlation and multicollinearity analyses are conducted to evaluate the relationships among these descriptors. Three machine learning approaches, including Decision Tree, Random Forest (RF), and Gradient Boosting Decision Tree (GBDT), are investigated alongside six empirical regression models. The predictive model-based refined DT achieves high accuracy with the lowest mean square error of 0.0004 and a higher coefficient of determination (R-squared) of 0. 9751on testing data, respectively. This indicates that the model is capable of accurately predicting the thermal conductivity of hybrid nanofluids over a wide range of hybrid nanoparticle combinations with high closeness to the experimental records. This predictive model condition highlights the potential of DT-based method to precisely compute the thermal conductivity of PDMS-diamond composite based on the applied electrical alignment parameters.
Open Access: Yes
Investigating the technology of Short Period of Incubation During Storage (SPIDES) to mitigate damage caused by mechanical impact
Publication Name: Bio Web of Conferences
Publication Date: 2024-08-23
Volume: 125
Issue: Unknown
Page Range: Unknown
Description:
Transporting hatching eggs on plastic setter trays is common due to the reduction in packaging materials compared to paper trays, favouring sustainability. However, the plastic setter trays convey mechanical effects more strongly, negatively impacting eggshell integrity and blastoderm viability. On the other hand, Short Period of Incubation During Storage (SPIDES) proven to increase the liveability of the blastoderm, if applied at the right time. This experiment investigated the mitigating effects of SPIDES during modelled egg transport conditions on vibration machine. Data showed that moderate mechanical effects, simulated by a vibrating modelling machine, resulted in better hatchability of live embryos compared to setups where SPIDES was also applied.
Open Access: Yes
Initial Validation of the Hungarian Version of Abridged Nutrition for Sport Knowledge Questionnaire (ANSKQ-HU)
Publication Name: Sports
Publication Date: 2025-12-01
Volume: 13
Issue: 12
Page Range: Unknown
Description:
Nutrition knowledge is essential for optimizing performance, recovery, and overall health in athletes. This study aimed to (1) adapt and validate the Hungarian version of the ANSKQ (Trakman et al., 2017) (ANSKQ-HU) and (2) assess the nutrition knowledge of Hungarian elite and recreational athletes. Following standard translation procedures and expert review, face validity was established. Data were collected from 1.335 athletes, and item difficulty, exploratory factor analysis (EFA), and reliability analyses were performed. A three-factor structure emerged: (1) Fundamentals of nutrition, energy needs, and prohibited substances; (2) Micronutrients and performance-enhancing sports nutrition; and (3) Utilization of macronutrients. While Cronbach’s alpha values were low (α = 0.41–0.62), this seemed acceptable given the dichotomous nature of the questionnaire. Most participants scored poorly (63.3%), with the lowest results in the micronutrients and performance-enhancing nutrition factor. Only 6.9% had formal nutrition education and most frequently respondents received help from coaches, family members, and friends. These findings highlight a significant gap in sports nutrition knowledge among Hungarian athletes and support the need for educative activities organized by sport nutrition professionals. The ANSKQ-HU is a reliable and valid tool for assessing nutrition knowledge in Hungarian athletes and can be a useful questionnaire for their support team (nutritionists, physicians).
Open Access: Yes
Assessing the readiness of Hungarian cities for autonomous vehicles
Publication Name: Cities
Publication Date: 2025-10-01
Volume: 165
Issue: Unknown
Page Range: Unknown
Description:
An increasing number of studies examine the AV readiness of cities where urban autonomous vehicle street tests have already been performed, leaving a significant gap in understanding the AV-readiness of cities that have not yet undergone such testing. Our research aims to assess the AV-readiness of Hungarian cities without prior urban autonomous vehicle testing. We surveyed 56 cities (91.8 % sample) with public transport and populations over 20,000. The results of the correlation analysis indicate a minimal understanding of the relation between the urban deployment of autonomous vehicles and the need for related urban developments. In the long term, however, there is evidence of the cities' intention to establish the urban conditions for autonomous vehicles. The larger the settlement and the higher the readiness level of current mobility plans and solutions, the sooner the estimated intervention, although these correlations are weak. The larger the size of the settlement and the more it has a mobility plan or an already existing solution, the shorter the timeframe required by the settlement for municipal interventions. Approximately half of the city planners did not associate AV-readiness with legislation and there are significant differences in planning considerations related to the new mobility paradigm.
Open Access: Yes
