This research aims to address the growing issue of cyberbullying, particularly among youth, by developing an AI-powered system for real-time detection and prevention on digital platforms. The research focuses on understanding the various forms of cyberbullying and their detrimental effects on mental health. Using the Agile system development methodology, the research will follow an iterative process involving design, development, and testing phases to create a reliable detection tool. The system is intended to identify harmful online behaviour and alert parents or guardians promptly. Preliminary results suggest that the tool will feature an intuitive user interface and effective algorithms capable of detecting abusive interactions. This research is significant, as it proposes a technological solution to a pressing social issue, aiming to enhance the safety and well-being of young people online. Additionally, the research aligns with SDG 16 Peace, Justice, and Strong Institutions by contributing to the protection of children from online harm and promoting safer, more just digital environments.
The generalized fractional Kundu-Mukherjee-Naskar equation (gFKMNE) is a nonlinear fractional partial differential equation (NFPDE) that models nonlinear pulse transmission in communication systems and optical fibers. This work investigates the gFKMNE in (2+1) dimensions, seeking optical soliton solutions. Using a wave transformation, the gFKMNE is converted into nonlinear ordinary differential equations (NODEs) of integer order. The modified extended direct algebraic approach is then applied to solve the NODE, yielding nonlinear algebraic equations and series-form solutions. The solutions, obtained using Maple-13, reveal optical soliton solutions for the gFKMNE. These soliton solutions can be stacked to produce black lattices in optical media, visible in contour plots and three-dimensional (3D) photographs. These dark soliton lattices are crucial in telecommunications, optical signal processing, and nonlinear optics. Further analysis examines the influence of various parameters on soliton behavior, demonstrating that soliton solutions exhibit distinct features depending on parameters like amplitude, width, and velocity. This study showcases the effectiveness of the modified extended direct algebraic technique in solving complex NFPDEs, providing new insights into soliton behavior in optical media.
Plant-derived mucilage has received considerable attention due to its extensive applications in the formulation and modification of pharmaceuticals, functional foods, and nutraceuticals. The current study aimed to isolate water-soluble polysaccharides from okra pods' mucilage and investigate their biological prospects. Mucilage was extracted by immersing okra pods in distilled water for 24 hours and precipitated in 75% ethanol. The total carbohydrate content of crude mucilage, water-soluble, and ethanol-soluble polysaccharide fractions was determined using the phenol-sulphuric acid method. These fractions were then subjected to different biological assays, including antioxidant, antibacterial, In vitro alpha amylase inhibition, and In vitro and In vivo anti-inflammatory assays. The water-soluble fraction demonstrated notable antibacterial activity, with an inhibition zone of 3.89 +/- 0.34 mm against K. pneumonie, while the crude fraction showed minimal activity against Klebsiella and Salmonella spp. The water-soluble polysaccharide fraction exhibited the highest percent radical scavenging activity, with the lowest EC50 value of 785.5 mu g/mL, followed by the ethanol-soluble fraction with an EC50 of 987.21 mu g/mL. Furthermore, the water-soluble polysaccharides demonstrated significant In vitro alpha-amylase inhibitory activity and membrane-stabilizing potential in hypotonicity-induced hemolysis of human erythrocytes. Notably, it also markedly reduced carrageenan-induced paw edema, indicating a strong anti-inflammatory effect In vivo. At higher concentrations, this fraction effectively reduced the inflammation, highlighting its potential as a natural anti-inflammatory agent. Our results conclude that the water-soluble polysaccharides present in the mucilage of okra pods and seeds possess promising antioxidant and anti-inflammatory properties and could be recommended for managing various inflammatory disorders. Further biochemical and structural characterization of these polysaccharides will broaden our knowledge of the potential role of these polysaccharides in combating inflammatory diseases and improving human health.
Polyvinylidene difluoride composite fibers with uniformly dispersed lead zirconate titanate (Pb (Zr0.52Ti0.48) O3) particles were synthesized via electrospinning technique. The fraction of electroactive β-crystalline phase within PVDF polymer matrix was enhanced upon incorporation of PZT particles from 65.7
In this work, Sr-doped Ruddlesden–Popper nickelates, La2-ySryNiO4-δ (y = 0.25, 0.5, and 1.0), are investigated for microwave absorption applications. Tetragonal layered structures are confirmed by X-ray diffraction, while electron paramagnetic resonance and magnetic hysteresis measurements reveal that moderate Sr substitution induces weak ferromagnetic behavior, whereas higher Sr contents suppress magnetic ordering, leading to paramagnetic- or diamagnetic-like characteristics. Among the investigated compositions, the y = 0.25 sample exhibits the best impedance matching (|Zin/Z0| ≈ 1), delivering an ultralow RLmin of − 89 dB at a matching thickness of 0.9 mm and an effective absorption bandwidth of 2.1 GHz in the X-band. In contrast, higher Sr concentrations are associated with reduced dielectric loss and weaker absorption, likely due to changes in defect structure and charge-transport pathways. These results demonstrate that controlled Sr doping effectively tunes electromagnetic dissipation in layered nickelates, highlighting La2-ySryNiO4-δ as a promising candidate for microwave absorption applications.
