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.

Evaluation of Physicochemical and Microbiological Characteristics of Borehole Water in Mgboushimini Community of Rivers State, Nigeria

Abstract: This research was carried out to determine the physicochemical and microbiological characteristics of groundwater in boreholes used as drinking water in Mgboushimini community in Obio Akpor Local Government Area of Rivers State in Nigeria. Eight water samples (n=8) from different boreholes were collected randomly within the community. The total bacterial count and Coliform was determined by using the standard microbiological method and Most Probable Number (MPN) method. A total of four (4) genera of organisms were isolated from the water samples which included Proteus spp, Citrobacter spp, Klebsiella spp, Candida spp. The mean value of Total Heterotrophic Bacterial count ranged from 1.1±0.14 to 7.9±0.07. The mean concentration of Clinical Practice Article Ebong et al.; JAMMR, 27(8): 1-9, 2018; Article no.JAMMR.42959 2 chloride, calcium, magnesium, and salinity were 10.79, 2.11, 0.47 and 0.21, respectively. The recorded pH, total alkalinity, temperature, and turbidity were 4.31 to 4.66, 4.00, 29.6 to 29.9, and 0.00 NTU, respectively. The electrical conductivity, total hardness, total dissolved solids, phosphate and sulphate, showed the mean value of 438±67.14, 7.18±1.99, 284.88±49.48 mg/l, 0.02±0.01 mg/l, 4.15±0.76 mg/l, respectively. These values were compared with the World Health Organization (WHO) standard values for drinking water quality. The microbiological and physicochemical result of the eight borehole water samples analysed did not meet the WHO standard, and therefore requires robust purification strategies to ensure a good potable drinking water in the community as to reduce the outbreak of water-borne infections.

Urinary excretion of nickel after dermal application of Nigerian light crude oil.

Abstract: We examined the pattern of excretion of crude oil nickel (CON) in urine and feces. Adult male guinea pigs were treated with a single dose of 5 mL/kg b.w. Nigerian Bonny light crude oil applied on the skin. Untreated guinea pigs served as controls. The CON content was measured spectrophotometrically by the dimethylglyoxime reaction following nitric acid:perchloric acid: sulfuric acid (3:1:1) digestion of blood, urine, and feces samples at 2, 4, 8, and 16 days after the crude oil application. We found a peak of CON excretion in the urine at 2 days and a return to the control level at 16 days. There was no change in the CON content in the feces during the observation time. We found a peak of CON content in the blood at 8 days and a return to control values at 16 days. The implication of these excretion and transport patterns of CON is discussed vis-a-vis the potential application of the urinary nickel content as a valid biochemical indicator of human exposure to environmentally spilled crude oil.

Macroeconomic Variables and Private Investment: A Two Dimensional Study from Nigeria Economy

Abstract: The study investigated the impact of macroeconomic variables on private investment in Nigeria for the period 1990 to 2016. To achieve these objectives, the study tests for the study modeled private equity and private real investment as the function exchange rate, financial sector development, and interest rate, openness of the economy, real gross domestic product, inflation rate and broad money supply. Ordinary least square method of data analysis was used. From model one, the study found that real gross domestic product have positive but insignificant effect, openness of the economy have positive and insignificant effect, interest rate have positive and significant effect, financial deepening have positive and insignificant effect while interest rate, inflation rate and exchange rate have negative effect on private real investment. The coefficient of determination (R2) proved that the independent variables can explain 62 percent variation on private real investment; the f- statistics found that the model is significant while the Durbin Watson statistics proved the presence of serial autocorrelation. The effect of macroeconomic variables on private equity investment was presented in model two. The study found that openness of the economy; real gross domestic products, broad money supply, and interest rate have negative and insignificant effect on private equity investment except openness of the economy with significant effect. Inflation rate, financial sector deepening and exchange rate have positive and insignificant effect on private equity investment except financial deepening with significant effect. The R2 proved that the independent variables can predict 66.9 percent variation on private equity investment. The f- statistics found that the model is significant while the Durbin Watson statistics proved the presence of serial autocorrelation. We conclude that macroeconomic variable have significant effect on private investment in Nigeria. We recommend that interest rate must be able to encourage higher private investment by increasing the real interstate on private savings or household savings so that larger amount of income would be saved to accumulate more capital and hence private investment. Policies should be formulated by investors and government to discourage factors that affect negatively private investment.

Determination of Mineral and Proximate Compositions of Pleurotus Ostreatus Grown on three Agrowastes

Abstract: Studies on the determination of mineral and proximate compositions of Pleurotus ostreatus grown on three agrowastes were carried out in the Department of Plant Science and Biotechnology and Dilomat Farms and Services Limited, Rivers State University. The three agrowastes (sawdust, wood ash and cassava bran) were mixed at different concentration levels and ten treatments including the combined effect and control were obtained. Proximate compositions which were moisture, ash, lipid, fibre, carbohydrate and protein were investigated. The highest values of carbohydrate (22.61±0.00) and fibre (56.20±0.00) were observed for sawdust and cassava bran (SCB) treatment. Although, the combined effect (CE) had the highest concentrations of protein (8.70±0.00) and ash (5.42±0.02). Moisture and lipid were highest for sawdust and wood ash (SWA) and control treatments respectively. Mineral analysis of harvested P. Ostreatus showed that SWA treatment had the highest values for Magnesium, Phosphorus, Potassium and Sodium. However, the highest Calcium (25.11±0.01) and Iron (3.43±0.04) contents were recorded for SCB and CE treatments respectively. However, sawdust and cassava bran treatments with higher concentrations recorded no harvest due to contamination. Generally, the SWA treatment had higher mineral values while CE performed better for proximate composition.

Resources allocation and employee commitment of the nigerian navy formation in south-south, nigeria

Abstract: This paper focused on finding out the effects of resource allocation and employees’ commitment: A case study of the Nigerian Navy in Port Harcourt Metropolis of Rivers State. Research questions and null hypotheses guided the study. The population of the study was estimated to be 1000 and the sample was 200 officers and ratings selected using purposive random sampling. A correlate of commitment questionnaire (ccq) with 40 items rated in a 5-point Likert Scale was the instrument used for collection of data. Research questions were answered using Mean and Standard Deviation, while the postulated hypotheses were analysed with Pearson Product Moment Correlation with the aid of SPSS at 0.05 level of alpha. The result obtained showed that the resources allocation have a significant relationship with employees' commitment level in the Nigerian Navy(NN) Ship Pathfinder in Rumuorlumeni, Port Harcourt metropolis of Rivers State. Keywords : resources allocation, employee commitment, continuance commitment affective commitment, normative commitment. CITATION: Tantua (Jr), E., & Egeonu, H. F. (2019). Resources allocation and employee commitment of the Nigerian Navy formation in South-South, Nigeria. The Strategic Journal of Business & Change Management, 6 (3), 406 – 418.