{"title":"THERMAL STABILITY STUDY OF METAL CARBOXYLATES OF Cucurbita pepo SEED OIL","authors":"O. M. Folarin","doi":"10.61281/coastjss.v6i1.1","DOIUrl":"https://doi.org/10.61281/coastjss.v6i1.1","url":null,"abstract":"The study investigated the thermal stability of Cucurbita pepo seed oil carboxylates in the temperature range of 433, 453 and 473K. The carboxylates, prepared via metathesis in ethanol, exhibited characteristic vibrations (1633-1398 cm⁻¹) conrming formation of the carboxylates. The decomposition rate constants were found to be of the order of 10⁻³ min⁻¹, with activation energy values spanning 12.0- ǂ 18.4 kJ mol⁻¹. The activation enthalpy (ΔH ) was observed in the range of 8.03-14.47 kJ mol⁻¹, indicating ǂ an endothermic behavior. The non-spontaneous decomposition process, indicated by ΔG (113.7-115.7 ǂ kJ mol⁻¹) and -ΔS (0.227-0.244 kJ mol⁻¹ K⁻¹), identied Ba-PSO as the most stable. This suggests the potential use of Cucurbita pepo seed oil for metal carboxylate synthesis thereby, enhancing its commercial value and promoting its cultivation in Nigeria.","PeriodicalId":474287,"journal":{"name":"COAST Journal of the School of Science","volume":"65 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141388838","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"DECIPHERING HUMAN ESTROGEN RECEPTOR-2 INHIBITOR FROM Momordica charantia: COMPUTATIONAL MODELS AGAINST BREAST CANCER.","authors":"J. A. Saliu","doi":"10.61281/coastjss.v6i1.4","DOIUrl":"https://doi.org/10.61281/coastjss.v6i1.4","url":null,"abstract":"HER-2, or Human Epidermal Growth Factor Receptor-2, is a constituent of the epidermal growth factor receptor family, possessing tyrosine kinase properties. Its over-expression has been correlated with breast cancer. On the other hand, the pharmacological potential of Momordica charantia has been attributed to the phytocompounds. Herein, the inhibiting potential of phytocompounds from M. charantia against HER-2 was investigated using computational approaches. Maestro Schrodinger software (2021 v 12.1) was used to perform molecular docking, molecular mechanics generalized Born surface area (MM/GBSA), and pharmacokinetics prediction of a hundred phytocompounds from M. charantia against HER-2. The result revealed that among the phytocompounds, ve (5) showed promising inhibitory potential comparable to the standard drug, Getinib. The MM/GBSA result showed that Rutin, Quercetin, Isoquerrcitrin, Folic Acid, and riboavin formed a more stable complex with HER-2 than Getinib. The pharmacokinetics prole of the hit compounds showed that the hit compounds except riboavin violated two or more of Lipinski's rule of ve. In conclusion, the bioactive compounds found in M. charantia could potentially act as primary candidates for the creation of effective inhibitors targeting HER-2 in the treatment of breast cancer.","PeriodicalId":474287,"journal":{"name":"COAST Journal of the School of Science","volume":"34 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141388266","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"DETECTION OF UNHEALTHY WEBSITES USING MACHINE LEARNING","authors":"O. A. Gbadamosi, A. M. Oduwale","doi":"10.61281/coastjss.v6i1.5","DOIUrl":"https://doi.org/10.61281/coastjss.v6i1.5","url":null,"abstract":"In recent years, advancements in Internet and cloud technologies have led to a signicant increase in electronic trading in which consumers make online purchases and transactions. Accompanying this achievement are vices like unauthorized access to users' sensitive information and damages to enterprise resources. Phishing is one of the familiar attacks that trick users to access malicious content and gain their information. This study aims to develop an efcient machine-learning program to detect phishing websites with high accuracy. Most phishing webpages look identical to the actual web pages and various strategies for detecting phishing websites, such as blacklisting, and heuristics, among others have been suggested. Existing research works showed that the performance of the phishing detection system is limited and there is a demand for intelligent techniques to protect users from cyber-attacks. A Uniform resource locator (URL) detection technique based on a supervised machine learning approach – Naïve Bayes is employed and implemented in Python programming language. The efcacy of this approach was determined on a phishing dataset made up of 7900 malicious and 5800 legitimate sites, respectively. The results show that using the proposed methodology an accuracy of 96% can be achieved by using stacking, ltering along the Naïve Bayes and logistic regression. This study thoroughly investigates the use of machine laearning with features extracted from the URLs and was able to showcase common words for the identication of either phishing (unhealthy) or good websites and proffered a guide to end users against the recent approaches in malicious URLs detection.","PeriodicalId":474287,"journal":{"name":"COAST Journal of the School of Science","volume":"177 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141388801","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"COMPARATIVE WOOD ANATOMY OF FOUR Vernonia delile SPECIES (ASTERACEAE) IN SOUTHWESTERN NIGERIA.","authors":"T. A. Abeegunrin","doi":"10.61281/coastjss.v6i1.2","DOIUrl":"https://doi.org/10.61281/coastjss.v6i1.2","url":null,"abstract":"Wood anatomy of four Vernonia Delile species in Southwestern States of Nigeria was investigated with a view to identifying the anatomical features of the genus that could be used to delimit the taxa. Plant samples were collected from Oyo, Ekiti, Osun and Ondo States. Transverse, tangential and radial longitudinal sections were made from the wood of the species of Vernonia using Reichert sliding microtome at 10μm thickness. The woods were also macerated with Schultze's uid to separate the tissues and cells. The macerates and cut sections were stained with Safranine O reagent to reveal the differences in tissue arrangements, shapes and cell inclusions. The four species showed common anatomical features: pore shape at transverse plane are oval, round, rectangular circular to cylindrical, simple pitting of vessel elements and presence of - uniseriate, biseriate and multiseriate rays. The wood characteristics that can be used to distinguish the taxa are absent and presence of : tylose, bre length and percentage of solitary vessel, axial parenchyma type and its absence. These features conferred signicant taxonomic difference in the species and members were categorized into three major groups. These ndings serve as baseline for further research such as molecular studies.","PeriodicalId":474287,"journal":{"name":"COAST Journal of the School of Science","volume":"14 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141388454","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
O. Olubosede, A. Faremi, O. Fadipe, O. S. Adigbo, C.Y. Daramola
{"title":"SYNTHESIS OF STRUCTURED ZINC SELENIDE FOR OPTOELECTRONIC APPLICATIONS","authors":"O. Olubosede, A. Faremi, O. Fadipe, O. S. Adigbo, C.Y. Daramola","doi":"10.61281/coastjss.v6i1.3","DOIUrl":"https://doi.org/10.61281/coastjss.v6i1.3","url":null,"abstract":"In this paper, synthesis of Zinc Selenide (ZnSe) based photovoltaic materials deposited by electrode position method. The material lms have been characterized for their optical properties using UV-VIS spectrophotometer with wavelength range of 300 nm – 900 nm and electrical conductivity using photoelectrochemical (PEC) cell measurement. The conductivity type of the electrodeposited materials was investigated together with the tuning of the optical phenomena. The materials deposited were obtained by varying deposition time from 5 minutes to 15 minutes for ZnSe. It was observed that the optical properties of the materials increased with an increase in the time of deposition. The optical band gap of ZnSe was found to be in the range between 2.03 and 2.46 eV. The PEC signal results revealed ZnSe as an n-type material.","PeriodicalId":474287,"journal":{"name":"COAST Journal of the School of Science","volume":"61 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141388415","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"EXPLORING THE THERAPEUTIC POTENTIAL OF TOMATO VARIETIES IN ALZHEIMER'S DISEASE: A FOCUS ON RADICAL SCAVENGING ABILITIES AND ACETYLCHOLINESTERASE INHIBITION.","authors":"O. Y. Adeniran","doi":"10.61281/coastjss.v6i1.6","DOIUrl":"https://doi.org/10.61281/coastjss.v6i1.6","url":null,"abstract":"Alzheimer's disease presents a signicant global health challenge, with limited effective treatments available. Natural compounds, particularly those found in fruits and vegetables, have garnered attention for their potential therapeutic benets in Alzheimer's disease. In this study, investigation was carried out on the antioxidant and neuroprotective properties of three tomato varieties Trichosanthes cucumerina (Snake tomato), Solanum lycopersicum Linn (Hausa variety), and Solanum lycopersicum Linn (Yoruba variety) in an Alzheimer's disease model induced by aluminum chloride using Drosophila melanogaster. Through in vivo and in vitro analysis, the radical scavenging abilities and acetylcholinesterase inhibition of each tomato variety was assessed. Findings reveal that Snake tomato exhibits potent radical scavenging abilities and signicant AChE inhibition, suggesting its therapeutic potential in mitigating Alzheimer's disease pathology. Additionally, the antioxidant properties of Snake tomato correlated with its phenolic and avonoid contents, highlighting its neuroprotective effects. While Solanum lycopersicum Linn (Hausa and Yoruba varieties) also demonstrated antioxidant properties, Snake tomato emerged as the most promising candidate for Alzheimer's disease management. These results show the importance of exploring natural compounds as alternative therapeutic approaches for Alzheimer's disease and warrant further investigation into the mechanisms underlying the therapeutic effects of tomato varieties.","PeriodicalId":474287,"journal":{"name":"COAST Journal of the School of Science","volume":"31 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141388364","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"AMBIENT AIR QUALLTY MONITORING OF AN EDUCATIONAL INSTITUTION IN NIGERIA","authors":"O Itebimien","doi":"10.61281/coastjss.v5i1.4","DOIUrl":"https://doi.org/10.61281/coastjss.v5i1.4","url":null,"abstract":"Air quality monitoring was conducted for 15 outdoor locations within an educational institution in Nigeria for 3 consecutive months during dry season using portable pre-calibrated gas monitors to obtain a scientific data on the ambient air quality status. Pollutants which include total volatile organic compounds (TVOCs) and formaldehyde (HCHO) were monitored using Air Ae Steward Air quality monitor. Carbon monoxide (CO), nitrogen dioxide (NO2), sulphur dioxide (SO2), hydrogen sulphide (H2S) hydrogen cyanide (HCN), ammonia (NH3) and chlorine (Cl2) were measured using gasman portable monitors. Meteorological parameters including temperature, relative humidity and wind speed were measured using Air Ae Steward Air quality monitor and MASTECH Anemometer, respectively. The pollutants concentrations ranges between 0.1±0.0 - 2.8±1.0 mg/m3 (TVOCs), 0.1±0.0 - 0.8±0.0 mg/m3 (HCHO), 0.1±0.0 - 0.3±0.0 ppm (NO2), 0.1±0.0 - 0.3±0.0 ppm (SO2), 2.0±0.0 - 6.5±0.5 ppm (CO), 2.0±0.0 - 6.0±0.0 ppm (NH3), 0.3±0.0 - 0.7±0.1 ppm (Cl2), 0.1±0.0 - 0.3±0.0 ppm (H2S), 0.1±0.0 ppm (HCN). The results obtained were analysed by comparing with FEPA, WHO and US EPA guidelines and NO2, NH3 and Cl2 were found in concentrations that exceeded recommended limits across all the locations while SO2, H2S and HCHO exceeded in some locations and CO, HCN and TVOCs were below the recommended limit across all the locations.","PeriodicalId":474287,"journal":{"name":"COAST Journal of the School of Science","volume":"230 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135563565","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Forage nutritional properties of Four Accessions of Andropogon gayanus-Andropogon tectorum in Southwestern Nigeria","authors":"F.M Ojo","doi":"10.61281/coastjss.v5i1.2","DOIUrl":"https://doi.org/10.61281/coastjss.v5i1.2","url":null,"abstract":"Accessions of Andropogon gayanus-Andropogon tectorum collected from Southwestern Nigeria were evaluated for their forage nutritional properties and potentials as fodder using standard procedures. Field trips for plant collection covered the agro-ecological zones of the following states in Nigeria: Ekiti, Ogun, Ondo, Osun and Oyo and the parts used were leaves and young stems. The proximate analysis revealed that moisture contents were moderate in all plant parts used (45.56%-71.46%) and the highest were recorded in the stem of A. gayanus. The percentage fat and nitrogen contents were low in all the accessions studied (0.20-0.38%) and (0.60-0.90%) respectively. The lowest value of crude fibre, ash and dry matter contents were recorded in the leaves and stems of A. gayanus. The lowest and the highest values of Lignin contents and carbohydrate contents were recorded in the leaves and stems of A. gayanus. A. gayanus had the lowest source of protein (3.75-3.78%). The concentrations of these mineral elements are within recommended range for animal feeds except for phosphorous. The study revealed the species (A. gayanus and A. tectorum) are good sources of proteins and carbohydrates, calcium, magnesium, potassium, sodium, manganese, iron, copper and zinc and are high enough to meet the requirements of animals; sheep and most especially cattle (for beef and dairy). . The presence of these substances in good quantities indicates the potentials of the examined Andropogon species as good fodders.","PeriodicalId":474287,"journal":{"name":"COAST Journal of the School of Science","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135563563","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"DETERMINATION OF POLYCHLORINATED BIPHENYLS (PCBs) IN SURFACE WATER IN ONDO STATE NIGERIA","authors":"T.F Ediagbonya","doi":"10.61281/coastjss.v5i1.3","DOIUrl":"https://doi.org/10.61281/coastjss.v5i1.3","url":null,"abstract":"Polychlorinated biphenyl compounds (PCBs) were included to the Stockholm Convention's list of typical persistent organic pollutants on May 22, 2001. (POPs). Humans have produced PCBs, which are pervasive in the environment. They are a concern for people all around the world because of their toxic, bioaccumulative, long-lasting, hydrophobic, and transboundary characteristics. The study's goals included describing how PCBs are distributed in surface water and evaluating how certain physiochemical factors affect PCB concentrations. Five separate Okitipupa locations—OAUSTECH, Igodan, Okunmo, Idepe, and Lebi/Ofe River—had their water samples taken. The overall average concentration of PCBs discovered in the samples taken from five (5) distinct places was determined to be as follows: OAUSTECH (5.720.13), Igodan (5.520.00), Okunmo (3.480.03), Idepe (21.830.02), and Lebi/Ofe (0.160.00), with their combined probability being determined to be 0.001. Twenty-five (25) PCB congeners were examined using a gas chromatography-electron capture detector (GC-ECD). The majority of congeners were below the detection threshold at every site. Total PCB values varied from 0.16 g/L to 21.83 g/L. The correlation between the overall level of polychlorinated biphenyls and the total organic carbon was positive (0.214), but it was weak (PCBs) and pH, positive (0.096) but poor correlation between the electrical conductivity, and a positive (0.220). The levels found in this investigation, with the exception of one area, were obviously lower than the 0.5μg/l level advised by the WHO. The water's concentration of polychlorinated biphenyls (PCBs) is not significantly impacted by the physicochemical characteristics, and the water is safe to use for household purposes.","PeriodicalId":474287,"journal":{"name":"COAST Journal of the School of Science","volume":"96 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135563564","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}