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Item Phyllanthus amarus Schumach. & Thonn. and Momordica charantia L extracts improve memory function, attenuate cholinergic and purinergic dysfunction, and suppress oxidative stress in the brain of doxorubicin–treated rats(2022) Oyeleye SI; Olasehinde TA; Fasakin OW; Oboh G; Saliu JABackground Phyllanthus amarus (P.A) and Momordica charantia (M.C) are common herbs known for their various pharmacological importance. However, limited studies have been done regarding their neuroactive effect. This study investigates the role of Phyllanthus amarus (P.A) and Momordica charantia (M.C) extracts on cognitive behavior and some neurochemicals associated with memory function in rats administered with doxorubicin (DOX). Methodology Normal rats were pre-treated with P.A and M.C (200 and 400 mg/kg bwt.) for 14 days, while on the last day, DOX (15 mg/kg bwt. i.p.) was administered in a single dose. The cognitive behavior was evaluated using Y-maze and Morris Water Maze Tests. Thereafter, the biochemical assays [acetylcholinesterase (AChE), butyrylcholinesterase (BChE), arginase, 5′- nucleotidase, adenosine deaminase (ADA), angiotensin-I converting enzyme (ACE), and catalase activities, thiobarbituric acid reactive species, and non-protein thiol levels] were determined in rats’ brains. The extracts were characterized using a high-performance liquid chromatography-diode array detector (HPLC-DAD). Result P.A and M.C extract restored cognitive behavior, nootropic-related enzyme activities, and improved antioxidant biomarkers altered by DOX. Furthermore, phenolic characterization of the extracts revealed gallic, chlorogenic, caffeic, and ellagic acids, catechin, epicatechin, rutin, quercitrin, isoquercitrin, quercetin, and kaempferol. Molecular docking analysis revealed that all the phenolic compounds detected in the studied plants had binding affinities for ACE, AChE, 5′-nucleotidase, and ADA proteins as the target proteins. Conclusion Extract from P.A and M.C effectively suppressed DOX-induced neurotoxicity by improving brain antioxidant status. Thus, they could play a significant role in restoring cognitive function altered by DOX treatment.Item Bioactive component of aqueous extract of Solanum melongena ameliorate estradiol valerate induced ovarian-pituitary dysfunctions in female Sprague–Dawley rats: Histomorphological and biochemical evidence(2022) Adelakun SA; Akintunde OW; Akingbade GT; Adedotun OABackground Estradiol valerate (EV) is known to cause hypothalamic-pituitary dysregulation of the gonadotrophin-releasing hormone. This study focused on the impact of aqueous extract of Solanum melongena (SM) on EV-induced ovarian-pituitary dysfunction in female Sprague-Dawley rats. Methods Thirty-two healthy female Sprague Dawley rats weighing (8 weeks old; weight 150–200 g) were randomly divided into four groups of eight (n = 8) rats each. Group A received 2 ml of distilled water, Group B received a single dose of 4 mg/kg body weight (bwt) of EV (i.p), Group C received 500 mg/kg bwt SM extract orally and Group D received a single dose of 4 mg/kg bwt of EV (i.p) and 500 mg/kg bwt of SM orally, the experiment lasted for 21days. The following parameters body weight, pituitary gland weight, ovary weight, ovary, and pituitary gland histomorphology, total antioxidant status (TOS), total oxidant status (TOS), oxidative stress index (OSI), total cholesterol (TC), triglyceride, low-density lipoprotein (LDL), and high-density lipoprotein (HDL), progesterone, FSH, LH, Testosterone, and estradiol were assessed. Results Estradiol valerate decreases the number of healthy follicles, progesterone, estradiol, HDL, and TAS. And increase degenerated cystic follicles, TT, FSH, LH, triglyceride, TC, LAL, TOS, and OSI. Pituitary gland showed degenerative changes, characterized by neutrophil infiltrations and loss of cellular projections marked improvement was observed in the ovary, pituitary gland, hormone, and biochemical parameters after SM administration. Conclusion Solanum melongena offers protection against EV-induced ovarian-pituitary dysfunctions evidence by restoration of oxidative stress markers, steroidogenesis, and histopathological alterations back to control level.Item Co-administration of metformin and gallic acid modulates JAK/STAT signaling pathway and glutathione metabolism in fructose-fed streptozotocin diabetic Rats(2022) Elekofehinti OO; Ariyo EO; Iwaloye O; Obafemi TOBackground Incidence of diabetes Mellitus (DM) is on the rise with each passing year in spite of available therapies in the management of DM. Metformin, a standard antidiabetic drug, and gallic acid (GA) are some of the compounds with established antidiabetic properties. However, there is dearth of information on their combination on JAK/STAT signaling pathway and glutathione metabolism in diabetic model. This study investigated the combined effect of metformin and GA on diabetic rats. Methods Forty male wistar rats were divided into 5 groups viz: diabetic control, normal control, Metformin (100 mg/kg), GA (100 mg/kg) and GA (100 mg/kg) + Metformin (100 mg/kg). Diabetes was induced by administration of 10% fructose for 14 days followed by injection of streptozotocin (40 mg/kg). The therapy was administered for a total of 21 days. The pancreatic mRNA expression of antioxidant genes (glutamate cysteine ligase catalytic subunits (GCLC), glutamate cysteine ligase modifier subunits (GCLM) and Glutathione Synthetase (GSS), inflammatory genes (tumor necrosis factor alpha (TNF-α), interleukin 1 beta (IL-1β), interleukin 6 (IL-6) and proteins of the Janus Kinase/ Signal Transducer and Activator of Transcription pathway (Janus Kinase (JAK), Signal Transducer and Activator of Transcription (STAT), were quantified using reverse-transcriptase polymerase chain reaction (RT-PCR). Metformin and GA were also docked with Insulin, GSS, and Janus Kinase 2 (JAK2) to determine their binding affinity. Results Rats treated with co-administration of GA and metformin significantly (p < 0.05) decreased fasting blood glucose level in comparison with groups treated with gallic acid only and metformin only. The gene expression analysis shows that co-administering metformin and gallic acid protects the pancreas of STZ-induced rats by increasing glutathione production, alleviating inflammation (IL-1, IL-6, IFN-), and modulating the JAK/STAT signaling pathway though upregulation of GCLC, GCLM, GSS mRNA expression and IL-1, IL-6, TNF-α, JAK2, STAT3 and STA5 mRNA expression. Conclusion This study showed that the combination therapy of metformin and GA modulated JAK/STAT pathway mediated by the cytokines, and replenished glutathione in the pancreas of diabetic rats.Item An Automated Cassava Peeling System for the Enhancement of Food Security in Nigeria(2012) Jimoh MO; Olukunle OJABSTRACT Cassava is second only to sweet potato as the most important starchy root crop of the tropical world. In most parts of the tropics, cassava is grown on small plots. However, in some countries, e.g. Mexico, Brazil and Nigeria, large plantations have been started and interest in mechanization is growing. The degree of mechanization depends on the size of the land and availability of machines for each unit operation involved in cassava processing. However, of all the unit operations involved in cassava processing, cassava peeling remains a serious global challenge to process engineers. An automated cassava peeling machine was thus developed in the Department of Agricultural Engineering, Federal University of Technology, Akure. The design of the machine was based on the development and modification of the peeling tool of previous cassava peeling machines and the peeling principle is by impact. This machine was evaluated using newly harvested improved variety of cassava tuber (TMS 30572) grouped into different sizes: 100≤L<140, 140≤L<180, 180≤L<220, 220≤L<260, and 260≤L<300. The speed of the machine varies from 100 – 600rpm while machine operational parameters such as throughput capacity, peeling efficiency, mechanical damage, quality performance efficiency and peel retention were determined for each size. Results revealed that throughput capacity ranged from 76 – 442kg/h, peeling efficiency ranged from 50 – 75%, mechanical damage ranged from 12 – 44%, quality performance efficiency ranged from 22 – 66%, and peel retention ranged from 7.2 – 33%. These results show appreciable improvement over manual method and existing machines.Item GGE biplot analysis of fluted pumpkin (Telfairia occidentalis) landraces evaluated for marketable leaf yield in Southwest Nigeria(2018) Fayeun LS; Alake GC; Akinlolu AOThe study was undertaken with the objective to examine the nature and to quantify the magnitude of genotype×environment interaction (GEI) effects on marketable leaf yield of fluted pumpkin, Telfairia occidentalis (Hook. F.) and to determine the winning genotype (s) for the test environments in Southwest Nigeria. The experiment was conducted using twenty-five landraces of fluted pumpkin in four environments [comprising two different locations (Abeokuta and Akure) for two consecutive years (2012 and 2013)]. Randomized complete block design with three replicates was employed. The combined analysis of variance over environments explained that fluted pumpkin marketable leaf yield was significantly (p<0.001) affected by environments, genotypes and GEI. The result showed differential performance of fluted pumpkin landraces at different test environments and hence the interaction was crossover type. The genotype main effect plus genotype×environment interaction (GGE) biplots were applied to analyse and visualize pattern of the interaction components. The first two PCs explained 86.40% (PC1=66.93%, PC2=19.47%) of the total variation of the GGE model (i.e. G+GE). Landraces Fts34, Ftn44 and Ftk20 were most stable but Ftd1 and Ftw21 were more desirable. Landraces Fta39 (398.80g) and Ftw21 (299.60g) were high yielding and are adapted to Akure and Abeokuta respectively. Akure is considered a better location for the evaluation of fluted pumpkin for marketable leaf yield.Item Phytochemical constituents and assessment of crude extracts from Boerhavia diffusa L. and Lonchocarpus sericeus (Poir.) Kunth ex DC. leaves for antioxidant and antibacterial activities(2022) Adeku E; Osundahunsi OF; Malomo SA; Asasile II; Owolabi OM; Oyewole GMedicinal plants have been used by humans for therapeutic purposes since ancient times. Hence, this study investigated the human health benefits of aqueous and ethanolic extracts of Boerhavia diffusa and Lonchocarpus sericeus leaves after these solvents’ extraction. The ethanolic L. sericeus extract (ELS), aqueous L. sericeus extract (ALS), ethanolic B. diffusa extract (EBD) and aqueous B. diffusa extract (ABD), were respectively evaluated for their phytochemical constituents, antioxidant and antibacterial properties. Results showed that both plant species have various constituents such as flavonoid (7.11–21.05%), alkaloid (2.00–8.00%), oxalate (1.98- 3.51 mg/g), saponin (3.00–16.00%), tannin (9.70–18.10 mg/100 g), total phenol (7.36- 18.26 mg/100 g) and phytate (225.64–394.88 mg/100 g), respectively. The ethanolic extracts of the leaves showed higher phytochemicals values than the aqueous extracts, with the highest values in the L. sericeus species, which might be due to the less polarity nature of ethanol solvent when compared to the aqueous solvent. The antioxidant results showed that the ethanolic extracts of the L. sericeus species had higher DPPH (78.61%), ABTS (75.57%), Fe2+ chelation (72.13%), FRAP (2.89 mg AAE/g) and hydroxyl radical scavengers (79.81%) than the ethanolic extracts of the B. diffusa species (58.20%, 71.46%, 61.03%, 2.72 mg AAE/g, 66.58%), respectively. The leaves extracts possessed remarkable antibacterial effects against the selected bacterial strains such as Bacillus cereus, Staphylococcus aureus, Pseudomonas aeruginosa, Escherichia coli and S. typhimurium. For instance, the ethanolic leaves extracts showed better inhibitory performances (2–14 mm) than the aqueous extracts (1–8 mm). Therefore, the study recorded the best activities from the ethanolic extracts of Lonchocarpus sericeus plant. Hence, the study substantiated the fact that the effective antibacterial performances of the ethanolic leaves extract is dependent on its high antioxidant capacities as well as the species of plants being used.Item Surveying Attitude and Use of Institutional Repositories (IRs) by Faculty in Agriculture Disciplines: A Case Study(2014) Bamigbola AAOver the last few years there has been increase in awareness of the importance of institutional repositories (IRs) in scholarly communication in tertiary institutions. However, low participation of faculty in contributing their intellectual products has been a great concern because it has not allowed institutional repositories to achieve its full potentials. Awareness and attitude among others are factors affecting the use of IR. This paper examines the level of awareness, attitude to use of institutional repositories and challenges faced by faculty in Agriculture disciplines in Federal University of Technology, Akure, (FUTA) Nigeria. Survey method was adopted; data was collected through questionnaire and analyzed using descriptive statistics. The study integrated diffusion of innovation (DOI) and theory of reasoned action (TRA) to understand the awareness and attitude to use of IR. The findings suggest that the level of awareness about IRs by faculty members is increasing; however, there was variation in the level of awareness across agriculture disciplines. In addition, there seems to be general positive attitude to IR, yet there was low submission of scholarly works by faculty. Finally, it was revealed that the use of IR is jointly determined by level of awareness and attitude.Item Physicochemical constituents and anti-oxidative properties of ripening hog plum (Spondias Mombin) fruits and the quality attributes of jam produced from the fruits(2022) Akinlolu-Ojo T; Nwanna EE; Badejo AAAbstracts Spondias mombin is a seasonal exotic tropical fruit with medicinal and economic benefits, yet suffering huge post-harvest losses. Value addition is anticipated to improve utilization, boost economic potential and forestall the colossal post-harvest losses. The study examines the physicochemical and antioxidant properties of the fruit at different ripening stages and the characteristics of jams produced from the fruit. The in-vitro antioxidant properties of the fruit were determined viz the total phenolics content (TPC), total flavonoid content (TFC), ferric reducing antioxidant Power (FRAP), 2, 2-diphenyl-1-picrylhydrazyl (DPPH), 2, 2-azino-bis-3-ethylbenzothiazoline-6-sulfonic acid (ABTS), Fe-chelating, the ascorbic acid as well as carotenoids contents. The fruit pulp with peel exhibited decreased level of FRAP, DPPH, TFC, Fe-chelating and vitamin C as ripening progressed while the brix and flavonoid contents increased with ripening. The fruits have soluble and insoluble fiber contents of over 20% and 60%, respectively. The sucrose content increased to more than 2-fold upon ripening while the mineral contents of the fruits were not consistent with the ripening stages. The sensory evaluation showed that the jams prepared from S. mombin fruit pulp were of good quality with good consumer acceptability. S. mombin fruits can be a source of natural antioxidant and dietary fiber. Production of acceptable jam from the fruit will greatly reduce the annual wastages while generating income.Item Nexus between the participation of residents in house design and residential satisfaction in Akure, Nigeria(2017) Fakere AA; Arayela O; Folorunso COThis study examined the relationship between residents’ level of participation in house design and level of residential satisfaction in Akure, Nigeria. The study was based on the idea that the goal of housing projects is to provide satisfactory environments for users. A cross-sectional survey was conducted on 304 household heads in transitional and peripheral zones of the city. Data were obtained through a structured questionnaire and focus group discussions and observations. The obtained data were subsequently subjected to single-factor descriptive analysis, mean satisfaction scoring, and categorical regression analysis. Results showed a positive significant relationship between the level of resident participation in house design and the level of residential satisfaction. The significant participatory predictors of satisfaction were number of bedrooms, general house design, development of the brief for the design, arrangement of interior spaces, and selection of finishing materials. Space size and building materials were not significant predictors in this context. The obtained p-value of 0.000 indicated that the regression model was significant. This study recommends a high level of resident participation in house design to achieve a high level of residential housing satisfaction in Nigeria.Item Evaluation of road failure vulnerability section through integrated geophysical and geotechnical studies(2017) Adiat KA; Akinlalu AA; Adegoroye AAIn order to investigate the competence of the proposed road for pavement stability, geotechnical and geophysical investigations involving Land Magnetic, Very Low Frequency Electromagnetic (VLF-EM) and Electrical Resistivity methods were carried out along Akure-Ipinsa road Southwestern Nigeria. The magnetic profile was qualitatively and quantitatively interpreted to produce geomagnetic section that provides information on the basement topography and structural disposition beneath the proposed road. Similarly, the VLF-EM profile was equally interpreted to provide information on the possible occurrence of linear features beneath the study area. These linear features pose a potential risk to the proposed road as they are capable of undermining the stability of the pavement structure. The geoelectric parameters obtained from the quantitative interpretation of the VES data were used to generate geoelectric section. The geoelectric section generated shows that the study area was underlain by four geoelectric layers namely the topsoil, the weathered layer, the partly weathered/fractured basement and the fresh basement. The major part of the topsoil, which constitutes the subgrade, is characterized by relatively low resistivity values (<100Ωm) suggestive of weak zones that are capable of undermining the stability of the proposed road. This therefore suggests that the layer is composed of incompetent materials that are unsuitable for engineering structures. Furthermore, fractured basement was also delineated beneath some portion of the proposed road. Since fracture is a weak zone, its presence can facilitate failure of the proposed road especially when it is occurring at shallow depth. The geotechnical results reveal that most of the investigated soil samples are clayey in nature. Integration of the results demonstrates that there is a good correlation between geophysical results and the geotechnical results. Furthermore, a vulnerability section that divided the road segments into three zones based on the degree of vulnerability was produced. These zones were high, moderate and low vulnerability zones. It is estimated that about 60% of the road segments constitutes moderate degree of vulnerability while 30% and 10% of the segments respectively constitute high and low degree of vulnerability.Item Prevalence and distribution of malaria, Pfcrt and Pfmdr 1 genes in patients attending FUT Health Centre, Akure, Nigeria(2018) Simon-Oke IA; Obimakinde ET; Afolabi OJThis research evaluated the distribution of malaria, Plasmodium falciparum chloroquine resistance transporter (Pfcrt) and Plasmodium falciparum multidrug resistant (Pfmdr1) mutant genes among patients attending FUTA Health Centre. The research was carried out between December 2015 and February 2016. One hundred and forty (140) patients coming for malaria test were examined out of which 74 (52.86%) were males and 66 (47.14%) were females. Malaria test was done by thick blood film microscopy and Polymerase Chain Reaction (PCR) technique. PCR technique was used to detect Pfcrt and Pfmdr1 mutant genes of P. falciparum. Information about sex, age, status and date of collection of each patient were collected. Pearson’s Chi-square test was used for analysis. Out of 140 blood samples that were tested, 100 (71%) were positive for malaria infection. The percentage distribution of malaria infection among male and female patients was 54 (72.97%) and 46 (69.70%) respectively with no significant difference (P=0.668). The prevalence of Pfcrt (95%) and Pfmdr1 (45%) showed significant difference (P=0.001). The research revealed high prevalence of Pfcrt and Pfmdr1 mutant genes of P. falciparum among patients which may be as a result of treatment of malaria with Chloroquine and other medication which the parasite have formed resistance against. It is therefore important to administer other malaria drugs apart from the drugs the parasite have formed resistance against.Item Challenges of Urban Housing Quality: Insights and Experiences of Akure, Nigeria(2016) Adeoye DOThis research was conducted in order to evaluate the housing infrastructure and quality in Akure, capital city of Ondo state, Nigeria. It tries to identify the problems that have aided the degradation of basic housing infrastructures, substandard housing, overcrowding and the likelihood of future incidences of disease and epidemics. In order to achieve the above; the city was divided into high, medium and low – density zones. The study also made use of the existing demographic and land use characteristics of the city and both primary and secondary data were used for the data collection. From the methodology, there were questionnaire administration, collection and updating of the base maps, observation checklists and the use of necessary field instrument for the study. Penalty scoring was used to assess the conditions and quality of houses. A total number of 180 houses were selected for the study. Secondary data involved information from existing literatures, books and journals. The study reveals that Houses in the high – density area have the worst property and environmental characteristics followed by houses in the medium – density area. Based on housing condition alone, approximately half of all the dwellings surveyed (54.44%) in the three zones are categorized as either sub – standard or unfit for human habitation. More than half of the houses surveyed have at least one or more major defects. Many of the houses are overcrowded with perhaps up to eight persons per room and the rooms are subjected to tenant's abuse by internal conversion to increase the occupancy rate. Also, many of the residents in the high density area are polygamists. The study further suggested a regeneration by private investors with possible displacement of residents from the high – density zone to new towns; a vigorous programme of housing and health education; enhanced collaboration between stakeholders to develop enforceable standards for existing housing stock is necessary; while the government is also expected to improve the existing infrastructures.Item Employability Skills in TVET Curriculum in Nigeria Federal Universities of Technology(2015) Ismail S; Mohammed DSIn the 21st century, employability skill is the most required skill besides technical knowledge in an attempt to compete for employment and sustain job at the industrial global market. However, Nigerian TVET graduates are not equipped with the employability skills needed by the industries and as a result, they are not ready to enter into workforce. This concept paper is written to discuss how the curriculum of one of TVET programmes at the Federal Universities of Technology in Nigeria, which is Electrical Technology Education has contributed to this issue. Analytical review on Electrical Technology Education programme curriculum showed that the curriculum gave less attention to practice based courses that provide skills of the programme than theory based courses and no course in the programme curriculum that directly teaches good attitudes and traits. As a result, there is lack of incorporation of employability skills such as Problem solving and decision making, Lifelong learning and Competencies amongst the graduates. Other issues discussed are the need of employability skills in TVET curriculum of Nigeria, employability skills, Electrical Technology Education in Nigeria, and the analysis of Electrical Technology Education curriculum in Nigeria The last part of this paper is recommendation for the curriculum of Electrical Technology Education to be designed with equal number of theory and practice courses by giving emphasize on all eleven generic skills, good traits and attitudes.Item Nutritional compositions, bioactive properties, and in-vivo glycemic indices of amaranth-based optimized multigrain snack bar products(2022) Olagunju AI; Arigbede TI; Makanjuola SA; Oyebode ETThe pervasiveness of diabetes mellitus (DM) is globally escalating, the disease being a consequence of dietary changes and modernization. As a result of rising consumer demand for products with greater quality and health benefits, research efforts aim to incorporate multigrain flours into snack products which could significantly improve the nutritional composition while harnessing their health-promoting properties. Snacks are an essential part of the human diet providing satiety and supply of necessary nutrients. To develop the multigrain snack product (MS), pre-fermented amaranth, acha, and pearl millet flours were combined in different ratios following optimization using response surface methodology representing SB1 (90: 5: 5) and SB2 (47.98: 26.68: 25.34) and oat snack bar market sample (SBC) served as control. The nutrient composition, glycemic index (GI), antioxidant properties, microbial safety, and sensory quality of the developed snacks were assessed using standard methods. SB1 and SB2 had high protein and ash contents, whereas, the carbohydrate and energy contents were similar to SBC. In addition, snack bar had a good balance of amino acids, contained significant macro and micro elements with a Na/K ratio of <1, and the phytate/calcium molar ratio was below the corresponding critical limit. MS bars depicted low to intermediate GI (48.69, 57.11), especially SB1 while SBC had approximately high GI (69.81). In addition, MS exhibited significant •OH scavenging ability, Fe2+ chelation, and the ability to inhibit Fe2+-induced lipid peroxidation. Summarily, SB1 had the highest protein content (21.95%), the composition of essential amino acid exceeded the reference standard, possessed low GI, and low postprandial blood sugar concentration (144 mg/dL) thus, may considerably qualify as a healthful dietary snack being nutrient-dense with antioxidant and hypoglycemic properties.Item Data set on concentrations, bioavailability, dose and lung deposition of labile metals bound to inhalable and respirable fractions of ambient particulate matters in Akure suburbs(2018) Olumayede EG; Oguntimehin I; Ediagbonya FT; Ojiodu C; Sodipe GOThis article consists of data sets of concentrations, dose and deposition of some labile metals bound to inhale ambient particulate matter collected at human breathing height of 1.5–2 m in Akure, South Western Nigeria. Ten (10) data points, of different air quality, were selected for study using active sampling method; during the dry season months of November, 2016 to March, 2017. At each data point, the dust particles were collected four times, sorted into inhalable and respirable fractions. The metal concentrations in each fraction were determined using Perkin-Elmer 6000 Inductively Coupled Plasma - Atomic Emission Spectrometry (ICP-AES) analysis. The data set were processed and analyzed via descriptive statistics (averages and standard deviations), and numerical analyses. The data were explored further to estimate the exposure dose of metal particles and deposition in various regions of lung (alveolar, trachea-bronchial and extra thoracic) in adults (male and female) dwelling in the area. The data revealed that the highest dose and deposition of metals (Pb, Cd and Cr) occur in the alveolar region of the lung of adults.Item Panoramic azimuthal Schlumberger Vertical Electrical Sounding for fracture orientation and anisotropy quantification(2018) Ogunbo JN; Mamukuyomi EA; Adepoju WS; Adebowale H; Akinro O; Ukaegbu CRVertical electrical sounding (VES) data acquired with the Schlumberger configuration is popularly used to image the electrical resistivity variation with depth at a single azimuth. Apart from the random subjective choice of the single azimuthal direction by the field geophysicists, important hydrological information such as fracture orientation and anisotropic coefficients needed for understanding resultant groundwater flow direction are by design lost in the process. Panoramic (0°–360°) azimuthal VES data were acquired at two data points at the Federal University of Technology, Akure (FUTA) at angular step of 15°, making a total of 24 data sets per data point. Each azimuthal VES data was inverted using equal number of layers in order to confirm the presence of anisotropy, quantify the anisotropic coefficients and image the orientation of fracture at a particular depth. Little to large apparent resistivity data and model suggested the presence of anisotropy which otherwise would have been lost in a single azimuthal survey. Elliptical fit of each layer azimuthal inverted resistivity was used to quantify the fracture orientation and coefficient of anisotropy with depth. From the results, it is established that anisotropy is present only at the near-surface: and the anisotropic coefficient increases from the surface to 7m. The result also showed the presence of an isotropic unit from 8m to the fresh basement. In agreement with existing published results on the geology of the area, the majority of the fractures trend North West and North East at stations 1 and 2 respectively. We hope that the methodology will foster detailed 3D panoramic imaging of the fracture network within and outside the study location, which will help in designing better groundwater management scheme and understanding resultant groundwater flow direction for contaminant and pollutant prevention and for flood control.Item Dataset on cellular and geo-spatial information of a 10 km distance along Akure-Ilesha road(2019) Diarah RS; Oyetunji SA; Osueke CO; Onokwai AOThis dataset contains cellular and geo-spatial information of a 10 km distance along Akure-Ilsha road in Ondo state, Nigeria. The data was acquired using a designed data acquisition system which was kept inside golf3 vehicle interfaced with Acer laptop, the data was acquired as the vehicle moves from the reference point (7.39919, 5.05944 ) to its destination point (7.32818, 5.10836), it harvests GSM signal Strengths from a base station in intervals with its time, latitude and longitude simultaneously as the vehicle moves along the travelled rout; the data acquired shows the variation of signal strength against distance along the road from one base station to another in the travelled path. The raw data of this work is hosted in the Mendeley repository DOI:10.17632/tmksc8mkt8.1Item Propagation curves and coverage areas of digital terrestrial television base stations in the tropical zone(2020) Akinbolati A; Ajewole MO; Adediji AT; Ojo JSThis study investigated the propagation curves and coverage areas of some Digital Terrestrial Television Broadcast Stations (DTTBS) over four climatic zones of coastal (Lagos), tropical rain forest (Akure), Sudan Savannah (Kaduna) and Sahel Savannah (Katsina) cities of Nigeria. Measurement of the Received Signal Strength (RSS) was carried out along different routes with each of the DTTBS as reference points. Measurements of RSS were carried out using two specified antenna receiver heights of 1.5 and 3.0 m for each data point. The GPS receiver was used to measure the geographic coordinates, elevation and Line of Sight (LOS) of data points along the routes in a drive test. Measurement was done during dry and wet season months at 1 km interval up to about 20 km in each of the selected routes covering a period of three years (2016–2018). Mean data were obtained and used to generate the propagation curves and the coverage areas over the study locations. Generally, results revealed that RSS undulates with LOS separation distance from DTTBS in all routes irrespective of seasons and routes. Particularly, RSS reduces to about half of its base station's value at about 8 and 12 km LOS from the DTTBS in Akure and Katsina respectively while, it reduces to about half of its base station's value at about 6 km from the DTTBS in Lagos and Kaduna. The implication of this is that higher coverage areas were obtained in suburban compared to urban cities. In addition, radial maps showing coverage areas and their grades useful for networking purposes were generated. Television White Spaces (TVWS) for secondary users were also proposed. For networking purposes and spatial arrangements of DTTBS that will ensure optimum coverage over the study locations, DTTBS can be sited at 8.0 and 13.5 km (LOS) interval from each other in urban and sub urban cities respectively. The overall results will enable system engineers to know the appropriate distance(s) and locations to site additional DTTBS for networking purposes and prepare power budget for optimum coverage area and good quality of services for terrestrial digital channels.
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