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Optimizing Magnetic Levitation Force and Stability in Superconducting Levitation with Translational Motion in Industries
No full textThe emerging world is characterized by bad roads, insufficient car fleets, insufficient railroads, overcrowded airlines, and congested ports. Lack of transportation facilities has been the major stumbling block to economic development in many developing countries. The adverse effect of the failure of conveyor belts in the production industry due to friction, leading to wear and tear, led to the increment in cost of production and a decline in the efficiency of the conveyor belt system. Implementing a levitation system offers a viable alternative to the conveyor belt. The primary expense associated with this system lies in the magnetic rail. This research exploits the Meissner effect, quantum locking, and the principles of magnetic levitation in the production and transport industries by simulating a real-life adoption using type-II superconductor (YBCO), liquid Nitrogen, and magnet. The concept of superconductivity and magnetic levitation is achieved when a superconductor reaches a critical temperature. Three (3) tests were carried out to determine the speed, load, and levitational strength. Taking everything into consideration, the end result of this research suggests that it has the potential to be an alternative model to the current systems in both areas of application
MAPS: The MFEM Anisotropic Plasma Solver
No full textSimulating magnetically confined fusion plasmas presents a uniquely challenging problem due to the nonlinear anisotropic heat conduction. We introduce the MAPS (MFEM Anisotropic Plasma Solver) tool, which uses a high-order finite element method to compute transport solutions on unstructured meshes. We show results for a set of three 2-D verification tests, two of which demonstrate the expected convergence properties for various mesh resolutions and polynomial degrees. We then discuss the convergence rate for the third test
Retraction Notice: Analyzing and Detection of Human Emotion through Online Social Networks
No full textWe take a zero tolerance to any situation where fraudulent research is published in our journals. As a result, this article has been retracted by the Publisher because it is suspected to be a nonsensical computer-generated publication with a number of tortured phrases and irrelevant references.
Additional measures have been implemented to prevent these issues from reoccurring.
EDP Sciences is extremely grateful to anonymous whistleblowers and the Problematic Paper Screene
Heavy Metal Content Test on Ethanol Extract of Mango Mistletoe Leaf
No full textLiving organisms require specific levels of heavy metals. However, excessive exposure to heavy metals, which accumulate in plants over time, can damage cells and organs. Due to these harmful effects, heavy metal toxicity has become a significant concern. In this context, as part of the development of mango mistletoe leaf herbal products, this study aims to measure the concentrations of Pb, Cu, Fe, Zn, and Cr in mango mistletoe leaf extracts using Atomic Absorption Spectroscopy (AAS). This technique detects heavy metals based on their unique absorption of electromagnetic radiation at specific wavelengths. To conduct this analysis, samples were prepared by wet destruction with HNO3 and HCl (1:3), followed by digestion at 150°C to isolate the atoms. The results showed average concentrations of Pb (0.615 ± 0.045 mg/kg), Cu (0.168 ± 0.007 mg/kg), Fe (0.492 ± 0.063 mg/kg), Zn (0.243 ± 0.010 mg/kg), and Cr (0.156 ± 0.011 mg/kg). Notably, the highest average was for Pb (0.615 ± 0.045 mg/kg), followed by Fe (0.492 ± 0.063 mg/kg) and then Zn (0.243 ± 0.010 mg/kg). In conclusion, the herbal tea made from mistletoe leaves remains within the safety limits set by the Food and Drug Supervisory Agency
Research on Spatial Vitality of Historical and Cultural Blocks Based on Space Syntax and POI Data
No full textAs an important way of urban sustainable development, the renewal of historical and cultural blocks mostly depends on perceptual cognition and lacks the guidance of quantitative analysis. This study uses space syntax and POI data to analyze the spatial structure of Guangzhou 's traditional central axis historical and cultural blocks, predict the volume of people and use the heat map for verification. Through the coupling analysis, the relationship between spatial structure, tourist attraction distribution and commercial distribution is revealed, and the problem space and potential space are identified. The results show that: the overall accessibility is high, but the crossing degree, Intelligibility (R2 is about 0.3) and synergy are generally low (R2 is about 0.17), reflecting the lack of identifiability and attractiveness of streets; Accessibility and commercial network distribution are basically coupled (spatial overlay analysis shows that 65% of high-density commercial POIs are distributed on the streets with the top 30 % of integration), but there are some dislocations; The streets such as Dama Station, Education Road, Gaodi Street and Taikang Road have strong commercial development potential, and some streets connecting Beijing Road have the risk of excessive traffic. Based on the above findings, the study proposes a classification space optimization strategy to provide a scientific reference for the renewal and vitality improvement of historical blocks
Effect of Sugar and Tea Concentration on the Yield and Quality of Kombucha Tea Drinks with SCOBY Fermentation
No full textKombucha tea is a fermented beverage made from tea (black or green), sugar, and a symbiotic colony of bacteria and yeast (SCOBY). Kombucha has gained popularity as a health-promoting beverage due to several potential benefits, including the presence of probiotics produced during the fermentation process. Probiotics help improve the balance of the gut microbiota, which is essential for healthy digestion. This research aimed to determine the optimal combination of sugar and tea concentrations that supports SCOBY fermentation and produces a high-quality kombucha beverage. This research was conducted at the Agrotechnology Laboratory, Faculty of Agriculture, Islamic University of Malang, from February to November 2025. The research design employed a completely randomized design (CRD) with two factors: (I) sugar concentration (G), consisting of 5 levels, and (II) tea concentration, also consisting of 5 levels. There were 25 combinations of factors I and II, each repeated five times, resulting in a total of 125 experimental units. Because it uses destructive observation, 500 observation units are required. The research results of the combination of sugar concentration treatment (125 g/L) and tea (12.5 g/L), which was fermented 10 days after inoculation, indicate that it is ideal for supporting the taste, thickness of nata, weight of nata, and sugar content
Organ-Specific Modulation of IGF-Binding Proteins in Malnourished Mice Supplemented with Probiotics: A Proteomic Approach
No full textMalnutrition disrupts the insulin-like growth factor (IGF) axis, impairing systemic growth and brain function. This study quantitatively assessed IGF-binding protein (IGFBP) expression in the liver and brain of malnourished mice following probiotic supplementation. Male BALB/c mice were subjected to a low-protein diet to induce malnutrition, then divided into probiotic and control groups. Proteomic profiling using the Mouse XL Cytokine Array (R&D Systems, ARY028) revealed organ-specific differences. In the liver, probiotics markedly increased IGFBP-3 (net intensity 3000 AU) and reduced IGFBP-1 (1200 AU) compared with malnourished controls, while maintaining IGFBP-2 (2500 AU). In the brain, probiotics induced IGFBP-5 (1,800 AU) and IGFBP-6 (1,500 AU), both of which were absent in controls, alongside a moderate IGFBP-2 signal (2,200 AU). These quantitative findings indicate that probiotics selectively enhance hepatic IGF-1 stabilization via IGFBP-3 while promoting neurotrophic support through IGFBP-5 and IGFBP-6. The results highlight the potential of probiotics as an adjunctive strategy to restore growth and neurological function in malnutrition
Digital intelligence-driven governance paradigms of urban social and economic resilience
No full textUrbanization intensifies cities' vulnerability to shocks like climate disasters, economic crises, and pandemics, making resilience critical for sustainable development. Digital intelligence—AI, IoT, blockchain, big data—transforms urban governance through data-driven decisions, real-time monitoring, and citizen engagement. This study analyses 232 peer-reviewed articles via bibliometric mapping and qualitative cluster analysis. Findings reveal three thematic clusters: technological innovations, economic resilience, and social resilience. Digital tools enhance robustness but risk excluding marginalized groups. Policy-technology alignment is paramount, yet gaps exist in equity frameworks, cultural embeddedness, and ethical governance. With 55% global urbanization (70% by 2050), integrating digital intelligence is indispensable for inclusive, adaptive cities. The findings are conducive to promoting inclusive digital resilience through multi-stakeholder co-design and algorithmic transparency
Integrated management, ESG strategies, and vertical system for sustainable growth: A case study of PT Indofood Sukses Makmur Tbk
No full textThis study examines how PT Indofood Sukses Makmur Tbk leverages integrated management, operational strategies, and environmental, social, and governance (ESG) principles to achieve sustainable growth in Indonesia’s fast-moving consumer goods sector. Using a case study approach, the research examines Indofood’s vertically integrated supply chain, its sustainability initiatives and their impact on both financial and non-financial performance. The results demonstrate that Indofood’s holistic approach—spanning from raw material production to distribution—has led to significant improvements in environmental stewardship, resource efficiency, and social impact, while also strengthening business resilience and competitiveness. The findings suggest that such integrated strategies can serve as a model for other companies seeking to balance growth with sustainability in dynamic markets
Harnessing solar energy in Nepal: financial viability and barriers to adoption
No full textThis study investigates the potential for solar energy to promote sustainable development in Nepal, focusing on financial viability, socioeconomic impact, and adoption issues in urban, rural, and remote areas. Using a mixed-methods approach, the study combines household surveys, expert interviews, statistical evaluations, and policy analysis. The findings show that solar adoption has effectively reduced reliance on fossil fuels and increased electricity availability, particularly in marginalized populations. However, fundamental impediments remain, such as high startup expenses, low public awareness, insufficient maintenance infrastructure, and inconsistent policy implementation. Surveyed families reported significant cost savings and increased energy security, but adoption trends differed by region. Urban areas benefited from stronger infrastructure and financial support, whereas outlying regions faced persisting logistical and economic challenges. Although government subsidies reduced budgetary restrictions, inefficiencies in distribution and ambiguous qualifying requirements limited their effectiveness. Experts stressed the need of local technical skills and ongoing maintenance support. Economic assessments, such as cost-benefit and levelized cost of electricity (LCOE) analyses, show that solar energy becomes more cost-effective over time. The paper concludes with recommendations for targeted legislative reforms, enhanced subsidy systems, and more public-private collaboration to increase solar adoption. These initiatives are vital for achieving Nepal's energy security goals and advancing its commitments to environmental sustainability