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Delta State, Nigeria

Western Delta University is located in Oghara, Nigeria. It was established in 2007 and is a private university. Western Delta University is ranked 71 in Nigeria by the National Universities Commissions. Wikipedia.

Adeoti L.,University of Lagos | Alile O.M.,Covenant University | Uchegbulam O.,Western Delta University
Scientific Research and Essays | Year: 2010

A total of five electrical imaging lines were measured using the wenner configuration. And a total of twelve VES was carried out within the area of investigation. The lines were aligned almost in a linearly NS azimuths, perpendicular to the ocean. The results were presented as profiles, multi-profiles, maps, pseudo sections and inverted sections. Interpretations of these results involve both qualitative and quantitative deductions from 1D and 2D geoelectric models. WingLink software was utilized for plotting, filtering, modeling and iterations of the resistivity data. From the quantitative interpretation and nearby well log data five distinct layers were identified. The layers are dry and unconsolidated sand, clayey sand, saline sand, saline clay and freshwater sand. The resistivity of the topsoil varies from 3259.59 Ohm-m on VES 2 -67.04 Ohm-m on VES 12. The resistivity of the freshwater sand varies from 1649.76 Ohm-m on VES 6 -158.28 Ohm-m on VES 10. The resistivity of the saline layer (saline sand/clay) varies from 2.06 Ohm-m on VES 12 -39.88 Ohm-m on VES 3. The depth to saline/freshwater interface varies from 12.97 m on VES 8 -63.01 m on VES 5. The quality of groundwater varies from poor polluted saline water saturated sand/clay through intermediate water quality clayey sand/sand to freshwater sand. The interpreted results show saline water plumes where they occur in different part of the area investigated. The 1D and 2D results correlate to a very high degree indicating saline water intrusion between depth interval of 13 and 64 m in the study area. Two major freshwater aquifers (shallow < 6 m and deep > 60 m) where delineated with most of them occurring unprotected. The results showed the effectiveness and usefulness of electrical resistivity and induced polarization method in mapping saline water intrusion problem in coastal areas. © 2010 Academic Journals.

Otajevwo F.D.,Western Delta University | Aluyi H.S.A.,University of Benin
Asian Journal of Microbiology, Biotechnology and Environmental Sciences | Year: 2011

A total of 135 swab specimens were obtained by swabbing around instruments from three different dental clinics namely restorative, preventive and oral surgery clinics of the University of Benin Teaching Hospital, Edo State, Nigeria of which 45 swabs were obtained from each clinic. Sterile swab sticks were first briefly dipped into sterile distilled water and then used to rub the surfaces of selected instruments which were immediately taken to the laboratory and processed. Total hetetrophic bacterial and fungal counts were carried out in sterile nutrient broths and potato dextrose broths respectively by standard methods. Swabs were asceptically inoculated on sterile MacConKey, Cysteine Lactose Electrolyte Deficient (CLED) and Mannitol Salt agar plates and incubated at 37°C for 24hrs. Swabs were also asceptically inoculated on sterile Potato Dextrose agar plates and incubated at 28°C for 7 days. The highest heterotrophic bacterial plate count (HBPC) of 21.6±0.52×10 3 CFU/mL was recovered apiece from carver and hatchet instruments respectively in the restorative clinic. The lowest count (15.9±0. 64×10 3 CFU/mL) was recovered from the condenser equipment. The upper right molar forceps and straight hospital elevator as obtained in the preventive and oral surgery clinics respectively recorded the highest HBPC of 21.0±1.96x103CFU/mL and 20.7±67×10 3 CFU/mL respectively. The highest (30.6±0.57±10 3CFU/mL) and lowest (27.3±0.58×10 3 CFU/mL) heterotrophic fungal plate count (HFPC) were recovered from the dental hoe and plastic instruments respectively. In the preventive and oral surgery clinics, the highest HFC (24.7±1.82×10 3 CFU/mL) and 30.6±0. 46×10 3 CFU/mL respectively were obtained from the restorative clinic upper right molar forceps and mouth mirror instruments respectively. Overall means of total HBPC and HFPC recovered from all equipment analyzed in the restorative, preventive and oral surgery clinics showed that there was no significant difference between HBPC and HFPC (P > 0.05). Identified bacterial organisms were Staphylococcus aureus, coagulase negative Staphylococci, Escherichia coli, Klebsiella spp, Proteus spp, Serratia spp and Pseudomonas aeruginosa. Fungal organisms identified were mainly Candida species. A total of 41, 57 and 43 strains of the various isolates were recovered from the restorative, preventive and oral surgery clinics respectively of which the preventive clinic recorded the highest microbial load. Instruments sampled from the restorative clinic were contaminated by strains of Candida species as the highest occurring organism followed by Staphylococcus aureus. The least occurring strains were those of E.coli and Serratia spp. The carver and condenser instruments sampled from the restorative clinic were mostly contaminated by 12 (29.3%) strains apiece of total microbial load recovered. The plastic instrument from which 6 (14.6%) load was recovered, was the least contaminated. Instruments sampled from preventive clinic appeared to be the most contaminated with HBPC of 92.5±0.15×10 3 CFU/mL as compared with those sampled from the oral surgery clinic having HBPC of 80.1±0.28×10 3 CFU/mL. While the upper right molar forceps and straight hospital elevator were the most contaminated instruments sampled from the preventive and oral surgery clinics respectively, the least contaminated were lower molar forceps and upper left forceps respectively. The best and most appropriate way of preventing bacterial colonization of the dental operatory and its equipment is by proper/adequate disinfection/sterilization of surfaces between instruments. These measures will guarantee the safety, health and productivity of staff and patients as well as reduce nosocomial infections. The overall effect of this will be a cleaner, safer and healthier public. © Global Science Publications.

Ogeleka D.F.,Western Delta University | Tudararo-Aherobo L.E.,Federal University of Petroleum Resources
Polish Journal of Environmental Studies | Year: 2011

The toxic stress of a commonly used dispersant (Caamol lubri-clean) on freshwater shrimp, Desmoscaris trispinosa, and brackish water shrimp, Palaemonetes africanus, was tested. The mean percentage mortality obtained for the 10-day experiment duration was 20, 60, 80, 100, 100% (freshwater test) and 20, 40, 63, 83, 100% (brackish water test). The 10 d median lethal concentration (LC 50) was estimated using the Finney Probit method of analysis and was found to be 53.33±3.52 mg/kg and 78.24±6.11 mg/kg for the fresh and brackish water acute toxicity tests, respectively. The release of dispersants into aquatic systems may affect bottom dwelling organisms inhabiting such environments due to the toxic nature of the surfactant component in the dispersant.

Otajevwo F.D.,Western Delta University
Global journal of health science | Year: 2013

Microbial pathogens implicated in urinary tract infection and their antibiotic susceptibility patterns as prevalent in UTI symptomatic outpatients resident in Benin City, Nigeria was the focus of this study. One hundred (100) midstream urine samples were collected into sterile plastic universal bottles from outpatients who visited the University of Benin Teaching Hospital, Nigeria and who were tentatively diagnosed as manifesting symptoms of UTI. Patients were referred to the Medical Microbiology department by the consulting doctors. Significant bacterial counts and neutrophil (pus cells) counts were carried out on samples by standard methods. Positive samples for both counts were inoculated aseptically on sterile MacConkey agar, Cystine Lactose Electrolyte Deficient (CLED) agar and Sabouraud Dextrose agar plates and incubated appropriately. Microbial isolates were identified and antibiotic sensitivity testing was carried out on isolates by standard methods. Thirty nine (39.0%) and 61 (61.0%) samples recorded significant microbial growth and no growth respectively. Gram negative bacilli constituted 86.1% (of which enterobacteriaceae made up 49.9%) while gram positive cocci made up 13.9%. Strains of uropathogens isolated were Alcaligenes spp (19.4%), Klebsiella aerogenes (16.7%), Escherichia coli (13.9%), Staphylococcus aureus (13.9%), Candida albicans (11.1%), Proteus mirabilis (8.3%), Pseudomonas aeruginosa (5.5%), Enterobacter spp (5.5%) and Providencia spp (5.5%). Occurrence of UTI in male and female patients were 58.3% and 41.7% respectively of which UTI occurred highest in the 25-46, 15-54 and 27-54 age groups in that decreasing order. Alcaligenes spp occurred most in very old female patients. Candida albicans (the only fungal uropathogen) occurred in an 8day old male patient. Other isolates occurred in much older patients. A significantly high microscopic neutrophil count or pyuria was recorded from deposits of UTI positive patients (i.e. < 5/HPF). Eighteen (representing 50.5%) and 15 (47.8%) of total microbial strains isolated were sensitive to nitrofurantoin and ceftriaxone respectively. Antibiotic susceptibility profile also showed 13(41.6%), 13(41.6%), 13(41.6%) for ciprofloxacin, cefuroxime and ofloxacin respectively suggesting moderate sensitivity of the fluoroquinolones and second/third generation cephalosporins. Gentamicin, ampicillin and augmentin recorded over 70.0% resistance level each. A total of nineteen bacterial strains made of E.coli, Enterobacter spp, Proteus mirabilis, Providencia spp, Staph. aureus and Pseudomonas aeruginosa were multi drug resistant as they resisted 3, 3, 4, 4, 5 and 8 antibiotics respectively.

The adult crowned bullfrog, Hoplobatrachus occipitalis was exposed to 0.25, 0.50, 1.00 and 2.00 mg/L cadmium for 28 days. The effect of cadmium on selected biochemical parameters- superoxide dismutase (SOD), catalase (CAT), glutathione (GSH) and thiobarbituric acid reactive substances (TBARS) in the liver were tested. Biochemical observations revealed significant (P<0.05) dose-dependent increase in the specific activity of superoxide dismutase (SOD) and catalase (CAT) relative to controls. This could be due to increased production of these antioxidants to counteract oxidative stress and lipid peroxidation induced by cadmium. Glutathione (GSH) level decreased with increase in the concentration of heavy metal. Thiobarbituric acid reactive substances (TBARS) which is an index of lipid peroxidation increased as concentration of cadmium increased. The increased level of TBARS in the liver of cadmium exposed frogs is an indication of increased membrane lipid peroxidation which could lead to cell damage. © Published by Central Fisheries Research Institute (CFRI) Trabzon.

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