Scott Christian College

Neonatal seizures result from a decreased supply of oxygen to the brain during the neonatal period, leading to neurological disorders and abnormal neuronal activity. Electroencephalography (EEG) is employed to monitor brain signals, and Fourier series and transformations are applied to analyze the frequency of these signals. Feature extraction is performed using the grey-level co-occurrence matrix (GLCM), a statistical method that analyses EEG images by scaling them between 0 and 1 before applying a classifier algorithm. Detecting neonatal seizures is particularly challenging due to the complexity of understanding EEG signals in neonates. Various classification algorithms, such as K-Nearest Neighbour (K-NN), Naïve Bayes, Logistic Regression, Decision Tree (D.T.), and Random Tree, are employed to identify seizure occurrences from EEG signals. The proposed classification approach leverages the AlexNet algorithm, demonstrating superior performance and accuracy compared to existing classification methods in the detection of neonatal seizures. The efficiency of the proposed methodology lies in its ability to train the machine rapidly, achieving a reduced training error rate of 25

Dengue fever transmitted by Aedes aegypti remains a major public health problem in India with year-round transmission. The present study was aimed to evaluate the phytochemical constituents and larvicidal potential of Citrus maxima leaf extracts against Aedes aegypti. Leaves were extracted with water and ethanol and subjected to phytochemical screening, FTIR, GC-MS, larvicidal and anti-bacterial studies. Phytochemical screening showed presence of alkaloid, carboxylic acid, flavonoids, protein, saponins and cardiac glycosides in aqueous extract, while ethanol extract contained flavonoids, phenol, quinones, saponins, tannins, cardiac glycosides and carbohydrates. Flavonoids, saponins and cardiac glycosides were common in both. FTIR of aqueous extract showed O-H stretch at 3408.11 cm⁻¹ and C=O at 1638.81 cm⁻¹. Ethanol extract showed more diverse peaks at 2980, 2902 and strong C-O-C at 1081.33 cm⁻¹ indicating terpenoids and flavonoid glycosides. Larvicidal bioassay was carried out at 100, 150 and 200 ppm for 24 and 48 hrs. Aqueous extract caused 40-80% mortality while ethanol extract caused 50-100%. Complete 100% mortality was observed with ethanol at 200 ppm after 48 hrs, indicating higher potency with LC50 near 100 ppm. Anti-bacterial activity showed 14 mm zone against E. coli in both extracts and 18 mm against Bacillus cereus in aqueous extract. GC-MS of ethanol extract, selected due to higher activity, revealed 8 major compounds including 7-Hydroxy coumarin, 2-Ethylacridine (highest peak at 16.743 min), Benzoquinoline, phenol derivative and Trilaurin, which are known for repellent and neurotoxic action. The study concludes that Citrus maxima leaf ethanol extract possesses significant larvicidal potential and can be developed as eco-friendly botanical larvicide for dengue vector control.

Interest in borate crystals has increased over the last four decades due to their possible applications in various fields such as deep UV laser technology. Ammonium Penta Borate (APB) is one such excellent crystal in the borate series and has been chosen for the present research work with Aluminium Chloride as the dopant (APB⋅AlCl3). The conventional slow evaporation technique has been employed for the synthesis work. The crystalline nature was strongly illustrated by sharp peaks of the powder XRD pattern. The single-crystal XRD has been carried out on APB⋅AlCl3 crystal and confirmed the existence of monoclinic system associated with the space group P21/C. The presence of various functional groups such as B–O and N–H has been identified by using FTIR spectral analysis. The optical properties of the test material have been examined and found that the title compound shows high transmission in the entire visible region with optical band gap 5.17 eV and the UV lower cutoff wavelength at 263 nm and an upper cutoff wavelength 362 nm. In the present investigation, the melting point of the grown APB⋅AlCl3 crystal is noted at 154 °C, and the decomposition stages experienced by the harvested crystal were discussed.

The reduction of fossil fuels and the increasing levels of greenhouse gases are majorly affecting both energy access and environmental impacts. Researchers are very active in the development of new technologies allowing the regeneration of clean air and water, eliminating dangerous by-products and reducing energy consumption. To tackle this, various metal oxide semiconductors are the most analysed materials for the application of photocatalysis. In this study, the self-aligned ordered hexagonal titania nanotube arrays were fabricated by the two electrode method. The experiment shows that electrolyte composition (NH4F in Ethylene Glycol), anodizing time, potential and temperature affected the formation of TNAs. The development of this nanostructure involves the internal growth of a porous oxide layer that interface into nanotubes. The morphology of the sample was observed using Field Emission Scanning Electron Microscope, while X-ray Diffraction spectrum was used to observe the anatase or rutile phase. In addition, the Energy Dispersive X-ray spectra revealed the elemental compositions of titanium dioxide nanotubes. UV- Diffuse Reflectance Spectrum was used to investigate the optical characteristics..

This study evaluates groundwater potential zones in the southern Tirunelveli District, Tamil Nadu, using Vertical Electrical Sounding (VES) surveys at forty-two locations in hard rock terrain. Geoelectrical interpretation revealed two to four subsurface layers comprising topsoil, weathered rock and sand, sand–clay mixtures, and jointed rock formations. Integration of 2D pseudo-cross sections and 3D resistivity modeling delineated productive aquifers at VES stations 1, 21, 25, 37, 38, and 41, validated by nearby well data. Additional promising horizons were identified at VES 3, 6, 15, 17, 18, 30, and 38 within the 10–15 m depth range, with resistivity values of 25–610 Ω m. Aquifer thickness varies from 0.6 to 43 m across the study area. Approximately 40