Rivers State University of Science and Technology

About: Rivers State University of Science and Technology is a education organization based out in Port Harcourt, Rivers, Nigeria. It is known for research contribution in the topics: Population & Threatened species. The organization has 1826 authors who have published 1833 publications receiving 15183 citations.

Estimation of The Structural Pattern and Sedimentary Thickness Over Part Of Anambra Basin, Nigeria Using Aeromagnetic Data

Abstract: Abstract Aeromagnetic data acquired over part of the Anambra Basin is analyzed to determine the structural pattern and sedimentary thickness of the basin. The study area is covered by high resolution aeromagnetic data on sheets 301 (Udi), 302 (Nkalagu), 312 (Okigwe) and 313 (Afikpo), and lies between latitudes 5o30’0’‘-6o30’0’‘ and longitudes 7o0’0”-8o0’0”. The whole area was divided into 25 overlapping blocks of 37.2km2 each and a 2D energy spectral analysis was carried out. Total magnetic intensity data was subjected to filtering and analytical techniques to determine the structural pattern, mineralization potential, depth to the basement, variation in the sedimentary thickness. The structural map generated using the vertical derivatives shows that the major structural orientation of the area is in the ENE-WSW trend and the minor trend is the NW to SE direction widespread all over the area. These structures are as a result of the various near-surface magnetic intrusion within the study area. The spectral analysis result shows two depth layers, the deep and the shallow depth, the depth to magnetic basement for the deep anomalous source ranges from 3.3km to 4.8 4km with an average depth of 3.99km, while the depth to shallow magnetic sources ranges between 0.46km to 0.67km and an average of 0.56km within the area. The mineralization pattern in this area follows the ENE-WSW direction.

Changes in Antioxidant Markers and Histopathology of Wistar Rats Fed with Edible Clay (Nzu)

Abstract: The changes in the antioxidant markers and histopathology in both adult male and female wistar rats fed with Calabash Chalk (nzu) was investigated. Twenty (20) wistar rats weighing between (120-150 g) were used for this study. They were randomly divided into four (4) Groups containing five (5) animals each (n=5) A-D. Groups (B-D) were fed with 1.0%, 2.0% and 8.0% of clay. Group A, not fed with clay served as control. After 21 days of continuous feeding, the animals were sacrificed and their liver organs excised for the following antioxidant markers (Catalase CAT, Reduced Glutathione GSH, Superoxide dismutase, SOD) and histopathology. The results showed significant (p< 0.05) increase in catalase activity in rats fed with 1.0% and 8.0% clay compared to control (0 clay) and group fed with 2.0%. However, no significant (p>0.05) difference was obtained for the group fed with 2.0% when compared to control. The results obtained for GSH and SOD also showed no significant (p>0.05) difference in the fed groups when compared to control. Histopathological changes indicated mild periportal and intraparenchymal inflammation in group fed with 8.0%. From the study it can be deduced that clay consumption has the potential to elicit the activities of antioxidant markers and subsequent depletion providing weak defenses against reactive oxygen species (ROS) and liver damage in the rats. Original Research Article Dokubo et al.; JALSI, 24(1): 16-20, 2021; Article no.JALSI .52617 17

Effect of Pollution due to Vehicular Emission around T-Junctions in Port Harcourt Metropolis, Rivers State, Nigeria.

Abstract: This research is investigating pollution due to vehicular emission within congested T-junctions in Port Harcourt, Nigeria. The five major T-junctions, statistically selected for this study includes: Rumuola, Waterlines, Garrison, LNG and Rumuokoro junction. The parameter measures each sampling location with six different distances of 5m away from mid-point of the T-junction on the stated following variables of interest: Volatile Organic Compounds (VOC), Carbon Dioxide (CO2), Nitrogen Oxides (NO2), Sulphur Dioxide (SO2), Particulate Matter (PM), Carbon Monoxide (CO) and the Sound level (SL). The gas analyzers was determined with a digital gas instrument called Aeroqual Series 500. The gas instrument was set to stabilize, analyse the environment and read after 3 minutes at a particular distance. For each location, the reading was taken in the morning (7.00am-10am), afternoon (1.00pm-4pm) and night (6.00pm-9.00pm) respectively for MJ, 5m, 10m, 15m, 20m, 25m and 30m away from the T-junction. This enable the determination of the value of pollutant gas concentration for each day base on average. Analyses of gases concentration over time was established via quantitative, time plots, least square regression model and analysis of variance with the aid of statistical software (E-View, Minitab, SPSS and Excel). Trend analysis of the variable of interest is determined over time with the respective equations and forecast values. The study shows that, the emission concentration for CO, NO2, SO2, CO2 VOC, PM2.5, PM10 and Sound level was found to be above the WHO limit, highest at Romuokoro, followed by Garrism, Rumuola and water lines junctions in Port Harcourt, where the intersections and traffic count is higher. It was also observed that the LNG junction recorded the least emission among all the junctions. Analysis of the forecast values was obtained for the average monthly period of two years (2020 and 2021). The study concludes that gases pollutant concentration diffusivity observed is related to vehicular movement, which indeed is significant with possible severe health consequences within the study area. It is therefore recommended that all business men and women should operate some meters away from all junctions. The road network within the research axis should be improved by constructing more routes to ease the traffic within the study area.

Reflecting on the Debates and Action of mixed methods adoption in Business Research: Researchers should start thinking

Abstract: The purpose of this paper is to evaluate the philosophical arguments underpinning the choice of mixed method [MM] research design. However, the study concluded that mixing research methods in business research is important as it helps to strengthen findings and recommendations arising from a given research study. More so, we recommend for postgraduate researchers to rationalise their choice of mixing methods based on complementarities, research priority, purpose and the implementation of findings and not on the basis of philosophical ontology and epistemology. This has been found to be the reason underpinning the much lauded arguments in the adoption of mix methods.