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.

Physicochemistry and Ichthyofauna of Ikoli Creek, Niger Delta, Nigeria

Abstract: The Ichthyofauna of Ikoli Creek, Niger Delta of Nigeria was investigated between July and September, 2015. Fish was collect using cast nets, gill nets and traps. Water quality parameters such temperature, pH, salinity, conductivity, turbidity, Total dissolved solids, Total suspended solids, Nitrate, chloride, Sulphate, Total alkalinity, calcium, Magnesium, Sodium, Potassium, Iron, Manganese, Total hardness, Dissolved Oxygen, Biological Oxygen demand and chemical Oxygen demand were determined. Fish species were sorted and identified. Species diversity was determined using Simpson’s index while evenness was determined using Shannon weaver index of diversity. The species assemblage comprised 262 individuals, 7 orders, 18 families, 22 genera, and 27 species. The dominant species were Synodontis clarias, Synodontis membranacea, Clarotes laticeps with 51, 33 and 22 individuals representing 19.46%, 12.59%, and 8.38% of total fish catch respectively. The diversity indices estimates were simpson’s index (D) = 0.074, Simpson’s index of diversity (I – D) = 0.926, Simpson’s reciprocal index (1/D) = 13. 51, Shannon – Weaver index (H) = 2.86, Shanon’s equitability index (EH) = 0.866, Evenness = 0.262, and Margalef index (DMn) = 4.67. The physicochemical parameters and species diversity. However, there were indications of water pollution with elevated BOD and COD values recorded. This could be attributed to organic loading of Ikoli Creek from Swali market abattoir, Industrial and agricultural discharge and run off from the Swali market and its environs. This study provides information for a more efficient waste management, and conservation of the fisheries resources of Ikoli Creek.

In his image and likeness: ponderings over creation and the divineessence

Abstract: Artikel ini mengambil inspirasi dari teologi berbagai agama, beragam kosmogoni dan bermacam mitos. Berdasarkan itu ia mengajukan suatu tesis bahwa manusia pada dasarnya mempunyai potensi yang sama dengan Penciptanya, yang tidaklah sama dengan Tuhan yang immortal, omniscient, omnipotent dan omnipresent . Kemampuan manusia sejajar dengan Penciptanya dalam hal “Kapasitas Mental Kolektif ”nya (CMC), namun berbeda dan lebih rendah dalam hal “Abilitas Mental Kolektif ”nya (CMA). Perbedaan itu analog dengan perbedaan antara seorang professor dan seorang anak sekolah yang inteligensinya secara potensial sama tinggi dengannya. Perbedaan terletak pada pendidikan dan pengalaman yang dimiliki sang professor. Lebih lanjut artikel ini mengajukan gagasan bahwa terdapat dua dunia yang parallel dunia etereal dan dunia korporeal. Yang etereal adalah realitas super-consciousness Roh Ilahi, yang juga mengontrol segala kehidupan di dunia korporeal. Tahapan evolusi dan penciptaan di dunia korporeal berjalan dibawah bimbingan dunia etereal. Artikel ini lantas menyimpulkan bahwa manusia diciptakan oleh entitas yang juga mortal, namun dibawah bimbingan Tuhan yang immortal, menuju proses penciptaan yang makin menyerupai Dia.

Chemical Constituents and Larvicidal Properties of n-Hexane Extract of Parinari excelsa Seeds

Abstract: The study was conducted to investigate the chemical compositions and larvicidal effect of n-hexane extract of Parinari excelsa seeds against fourth instar larvae of Culex mosquito after 24 h and 48 h exposure. The chemical composition of n-hexane extract of P. excelsa seeds were analyzed using Gas Chromatography-Mass Spectrometry (GC-MS). Larvicidal activity was performed following standard procedures of World Health Organization (WHO). GC-MS analysis showed that the seed extract of P. excelsa contained hexadecyl phenyl carbonate with highest percentage (7.502%, RT=26.39), followed by tetradecyl phenyl carbonate (5.77%, RT=25.90), 1-methyl cyclohex-3enyldodecyl fumarate (5.70%, RT=24.58), decyl phenyl carbonate (4.70%, RT=28.64) and the lowest, octadecyl-2,2,2-trichloroethyl carbonate (0.62%, RT=13.71). The result showed significant (p<0.05) mortality of larvae in 24 h and 48 h of exposure. However, the highest larval mortality was recorded at 48 h exposure. Result of regression analysis indicated that mortality rate positively correlated with concentration having a regression coefficient (R) close to one in each exposure case. The estimated lethal concentrations (LC50) for 24 h and 48 h exposure were 2.056±0.176 μg/ml and 0.429±0.150 μg/ml respectively. This indicates that larvicidal activity recorded for 48 h exposure was 4.8 times more than that recorded for 24 h exposure. The study Original Research Article Dokubo et al.; ARRB, 36(1): 14-23, 2021; Article no.ARRB.52618 15 demonstrated that n-hexane extract of P. excelsa seeds exhibited larvicidal potential and can be utilized as biopesticides to minimize the multiplication of mosquitoes that transmit vector borne diseases.

Determination of scatter radiation to the breast during lumbosacral x-ray examination using thermoluminescence dosimeter

Abstract: Objective: Exposure to ionizing radiation during radiographic examination is associated with some biological effects. The study was aimed to determine the amount of scatter radiation to the breast during lumbosacral x-ray examination. Materials and Methods: The study was a prospective, cross-sectional study carried out among 60 women referred for Lumbosacral spine radiography from September 2019 to December 2019. Ethical approval was granted by the hospital ethical committee. A single-phase mobile X-ray unit was used to dispense the radiation while a thermoluminescent dosimeter (TLD) chip was used to measure the radiation dose. The TLD chip was attached to the peri-areolar region of the left breast and held in place by a transparent adhesive tape. The TLD was carefully enclosed in a black polythene sachet before and after the investigation to shield it from background radiation. After the investigation the TLD,s were sent to the Centre for Energy Research and Training (CERT) for reading and annealing. Results: The mean age and BMI of participants were 55.32±12.35years and 29.70±7.09kg/m2 respectively. The cumulative mean (±SD) ESD to the breast was 3.87±0.87mGy. The highest scatter radiation dose was observed in the age group 60-69 years. Pearson’s correlation showed a week correlation between age and ESD. Conclusion: The study showed that there were scatter radiations to the breast during lumbosacral X-Ray investigations which was was lowest among the age group 50-59years. No significant difference was seen between AP and lateral positions. The cancer risk was 1 in 6,000 indicating that there might be needed to shield the breast while performing lumbosacral X-ray.

Adverse Drug Effects and Non-Adherence to Antiretroviral Therapy in Nigeria: A Review

Abstract: Objectives: This review aims to assess the link between adverse drug effects and non-adherence to antiretroviral therapy (ART) among people living with HIV/AIDS (PLWHA) in Nigeria. Methodology: Databases were searched namely PubMed, Web of science core collection, Science direct, Global Health (CABI) and MEDLINE. Fifteen (15) primary articles (studies carried out in Nigeria) met the inclusion criteria and were selected for the review. The primary articles selected for the review were analyzed and critiqued. Results: The articles selected for review showed that adverse drug effects is a barrier to adherence to ART. Conclusion: The review conclude that adverse drug effect is a barrier to adherence to ART among PLWHA in Nigeria and recommends patient education on side effects of ART, the need for regular exercises, eating healthy meals and the need for physicians to simplify the regimen with regards to the amount of medication to take and the timing.