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Search Results: 1 - 10 of 111842 matches for " O Ogunkunle "
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Caleb O. Ogunkunle
Ilorin Journal of Religious Studies , 2012,
Abstract: The call for rebranding the society at the national level confirms the level of moral decay in Nigeria. The multi-dimensional moral problems and crises are seen in every sector of the nation. This has accounted for various forms of evil being committed by people in the nation. Unfortunately, those in the religious sector are not immune to these evils. In fact, some of these atrocities are directly or indirectly connected with religious leaders. Therefore, this paper examines the Biblical Josiah and his reforms as a model for religious and political rebranding in Nigeria. This is with a view to highlighting some principles that would help us as a nation in our rebranding campaign. A historical method is adopted. Thus, Josiah’s model of rebranding remains a yardstick for all religious and political leaders in Nigeria if the rebranding project will yield fruit.
Effect of Crude Oil-Contaminated Soil on Germination and Growth Performance of Abelmoschus esculentus L. Moench—A Widely Cultivated Vegetable Crop in Nigeria  [PDF]
A. A. Oyedeji, A. O. Adebiyi, M. A. Omotoyinbo, C. O. Ogunkunle
American Journal of Plant Sciences (AJPS) , 2012, DOI: 10.4236/ajps.2012.310174
Abstract: This study investigated the effect of crude oil-contaminated soil on the germination and growth performance of Abelmoschus esculentus, a widely cultivated vegetable crop in Nigeria. The experiment was conducted in the Screen House, under controlled environmental conditions. The seedling emergence percentage, heights and girths were studied to determine the growth performance of the crop in crude oil-contaminated soil. The result of the investigation revealed that the crude oil-contaminated soil affects the growth performance of Abelmoschus esculentus L. as hindered germination, reduced heights and girths were observed in the crop planted in treated soil and this adversely and severely affects the crop agronomic growth and development and probably its yield. Therefore, contamination of agricultural soils with crude oil should be avoided and public awareness should be created on the detrimental effects of crude oil pollution in our terrestrial ecosystem. Innovative and environmental-friendly remediation strategies should be carried out on our agricultural soils that have been grossly polluted by crude oil exploitation and exploration.
Soil Fertility Status under Different Tree Cropping System in a Southwestern Zone of Nigeria
Clement O. OGUNKUNLE,Olusegun O. AWOTOYE
Notulae Scientia Biologicae , 2011,
Abstract: Tree cropping has been known to bring about changes in edaphic component among other components of the ecosystem through their interactions with the soil and soil faunas. Premised on this, this study assessed the effects of sole cropping of teak and intercropping of cocoa and kola on the soil fertility status. The study was carried out using stratified-randomed sampling technique for the study plots in all the sampling sites. Three sampling sites consisting of four (4)-4oo m2 sampling plots each were established in which vegetation and some soil parameters were assessed. Results analysis showed that the synergistic interaction of leaves decomposition of cocoa and kola improved the organic matter content of the soil under the cocoa/kola site. Considerable improvement in soil fertility was enjoyed in the cocoa/kola site due to the large girth sizes and basal area of trees present in the cocoa/kola site while soil under the sole cropping of teak was impoverished. The degradation effects was due to the high rate of nutrient uptake of the teak, organic matter content was high in the forest site (9.12%) and cocoa/kola site (7.34) while the least was in the teak site (3.04%). A very strong correlation existed between organic matter content and some vegetation parameters.
Evaluation of Quality of Some Rehabilitated Mined Soils within the AngloGold-Ashanti Concession in Ghana  [PDF]
Witmann H. K. Dorgbetor, Gabriel N. N. Dowuona, Seth K. A. Danso, Julius K. Amatekpor, Ayoade O. Ogunkunle, Enoch Boateng
International Journal of Geosciences (IJG) , 2012, DOI: 10.4236/ijg.2012.31007
Abstract: Land degradation caused by surface mining of gold has been extensive in Ghana. In recent years rehabilitation of some degraded lands by re-vegetation has been undertaken. This study provides quantitative data on the quality of some rehabilitated and un-rehabilitated mined soils within the AngloGold-Ashanti gold concession in parts of the semi-deciduous forest zone of Ghana. Soil properties determined included texture, bulk density and aggregate stability, pH, organic carbon, available phosphorus, total nitrogen, cation exchange capacity, exchangeable bases, exchange acidity, Fe, Mn, Ni, Cu, Zn, Cd, and Pb. Aggregate stability as a physical quality indicator revealed that aggregates of the rehabilitated mined soil had become more stable and similar to the control unmined soil due to litter and carbon additions from planted trees. The nutrient levels were very low because of the presence of low activity clays inherent in the native soil. Organic carbon content in the rehabilitated soil had increased above that of the unrehabilitated soil. Variability in soil properties, especially organic carbon and aggregate stability, was minimal in the unmined and rehabilitated soils implying that soils at the two sites were most robust and resistant to crushing and rupture. Quality index of the unmined control soil was 36.5% indicating that the quality of the soil was 63.5% relative to the optimum quality because of inherent poor soil properties. The mined rehabilitated and unrehabilitated soil had index values of 32.5% and 24.4 %, respectively. The marginal difference of 4% in soil quality between the control and rehabilitated soil shows that it is possible to maintain the health of soils with inherent physical and biochemical deficiencies if reclamation regulations are adhered to. In this way, the socio-economic dilemma of exploiting natural resources for the benefit of societies is ameliorated while maintaining an ecosystem balance.
Toxic Effects of Cadmium (Cd) and Lead (Pb) on Growth and Productivity of Arachis Hypogaea (L) and Glycine Max (L)
Paul O. Fatoba,Clement O. Ogunkunle,Bolaji Z. Salihu
Journal of Asian Scientific Research , 2012,
Abstract: A study was conducted to determine the effects of different concentrations of cadmium and lead on the growth and productivity of Arachis hypogaea and Glycine max. Seeds were sown on soils irrigated with 0, 10, 20, 30 and 40ppm concentrations of cadmium and lead. Growth and productivity indices were recorded at the 8th week of growth and the elemental contents of the seeds produced were determined using Atomic Absorption Spectrophotometer. The data generated were subjected to One-Way Analysis of Variance and Duncan Multiple Range Test. The results showed that both lead and cadmium treatments had toxic effects on various growth indices and productivity of Arachis hypogaea and Glycine max. Increasing the concentrations of the metals (lead and cadmium) to 40 ppm, significantly (p<0.05) decreased seed germination and number of leaves in both Arachis hypogaea and Glycine max as compared to Control. The filling potentials of the two plants were greatly reduced with increase in concentrations of cadmium and lead regimes. The seeds produced accumulated a lot of cadmium and lead and their concentrations in the seeds increased as the regime concentrations increased. This study has been able to show the risks/hazards of the consumption of groundnuts and cowpeas that are irrigated with effluents or wastewaters. It is recommended that soils polluted with Pb and Cd should not be used to raise these crops.
Palliation for transposition of great arteries
VO Adegboye, SI Omokhodion, O Ogunkunle, AI Brimmo, OA Adepo
Nigerian Journal of Surgical Research , 2003,
Abstract: Background: At the University College Hospital Ibadan we have no facility for total surgical correction of transportation of the great arteries (TGA). This prospective study reviews the palliative procedures we have used in the management of TGA. Method: Patients with the diagnosis of TGA were evaluated for morphological type. The choice of palliative procedure was made in some of the patients with morphological type in mind. No fixed criteria were used for allocating patients to Blalock-Hanlon (B-H), atrial septectomy while pulmonary banding (PB) and Blalock-Taussig (B-T) shunt have definite indications. Results: Fourteen consecutive patients with TGA were palliated. The ages of these patients ranged between 3 to 11 months (6.8 ± 2.4 months), there were 8 males to 6 females (1.3:1). Six patients had B-H atrial septectomy and 2(33.3%) died within 48 hours, 4 patients had B-T shunt and there were no mortality, 4 patients had PB and 2 (50.0%) died within 72 hours. The overall operative mortality was 28.6%. All the 10 survivors had improvement of their clinical features and fall in packed cell volume during the period of follow-up, which lasted 5 to 13 months (mean 9.3 ± 1.2 months). All patients had delayed wound healing. Conclusion: Appropriate and timely palliative surgery has a place in patients with TGA as an interim care. Key Words: Palliative surgery, transposition, great arteries Nigerian Journal of Surgical Research Vol.5(1&2) 2003: 129-133
Assessment of heavy metal contents of Lycopersicum esculentum mill. (tomato) and Capsicum chinense l. (pepper) irrigated with treated and untreated detergent and soap wastewaters
PO Fatoba, CO Ogunkunle, AA Oyedeji, O Oladimejio
Ethiopian Journal of Environmental Studies and Management , 2012,
Abstract: Tomato and pepper are staple and common vegetables consumed by all classes of Nigerian populace. Due to high consumption rate of these vegetables, they are cultivated all year round in many localities including the peri-urban cities. The problem of freshwater scarcity in peri-urban cities and the northern part of Nigeria has made peasant farmers in these areas to resolve to the use of wastewaters for irrigation with no knowledge of their status and safety. Therefore, the level of heavy metal contents in Lycopersicum esculentum and Capsicum chinense grown in the Screen House of the University of Ilorin, North-central Nigeria were studied using treated and untreated detergent and soap wastewaters. Fallowed soils collected from the University Botanical Garden, homogenized and packed into planting bags were used for the experiment. Viable seeds of Lycopersicum esculentum and Capsicum chinense were sown in 10 planting bags for each crop and irrigated with 0%, 5%, 10%, 20% and 40% Treated and Untreated wastewaters. After 12WAP, leaf samples of Lycopersicum esculentum and Capsicum chinense were collected, air-dried, digested and the digests were analyzed for Manganese (Mn), Copper (Cu), Chromium (Cr), Lead (Pb) and Cadmium (Cd) by Atomic Absorption Spectrophotometry. It was evident that there was prevalence of heavy metals in the wastewaters particularly the untreated wastewater and the content of the heavy metals were concentration-dependent in the leaves of the test crops. It is therefore imperative to inform and enlighten the local farmers and the consumers on the danger of using such water for irrigation of agricultural crops in order to ensure safety.
Production of Glucose from Lignocellulosic under Extremely Low Acid and High Temperature in Batch Process, Auto-hydrolysis Approach
T.V. Ojumu,O.A. Ogunkunle
Journal of Applied Sciences , 2005,
Abstract: In the present investigation production of glucose was achieved in batch reactors from hydrolysis of lignocellulose under extremely low acid (ELA) and high temperature condition by pretreating the sawdust by Auto-hydrolysis ab initio. The maximum glucose yield obtained was 70% for the pretreated sawdust at 210 ° C in the 18th minute of the experiment. This value is 1.4 times maximum glucose obtained from the untreated sawdust under the same condition. The glucose yield gradually decreases after the 20 min of reaction due to its decomposition.
Erythrocyte indices of iron status in children with cyanotic congenital heart disease at the University College Hospital, Ibadan
OO Ogunkunle
Nigerian Journal of Paediatrics , 2013,
Abstract: Background Iron (Fe) deficiency is a known feature of cyanotic congenital heart disease (CCHD) and may worsen symptoms. The prevalence of iron deficiency among children with CCHD at the University College Hospital (UCH), Ibadan is unknown. Erythrocyte indices of iron status are easier and less expensive to determine than serum iron, serum ferritin and total iron binding capacity, which are the standard tests of iron deficiency. Objectives: To examine the erythrocyte indices of iron status in children with CCHD in UCH, and determine the prevalence of iron deficiency among such patients, by comparing the values obtained with established reference values. Subjects and Methods: The packed cell volume (PCV), haemoglobin (Hb), mean corpuscular volume (MCV), mean corpuscular haemoglobin concentration (MCHC) and red cell distribution width (RDW) of 40 children with CCHD, determined using a Sysmex 1000X1 Coulter counter, were compared with standard reference values. Results: Mean+SD values obtained were – PCV: 58.6+11.6%. MCV: 80.7+12.1 ìm3, MCH: 25.9+9.5g/dl, MCHC: 30.9+4.1 and RDW: 20.5.5+12.6%. Lower-than-normal values for MCV, MCH and MCHC were found in 33.5%, 42.5% and 72.5% of patients, respectively, while 77.5% had higher-than-normal values for RDW. However, using the criteria based on a combination of RDW and MCV, 35% of patients were iron deficient. Conclusion: A large proportion of Nigerian children with CCHD appear to be iron deficient and are therefore likely to benefit from routine iron therapy.
Challenges in the management of congenital heart deseas in Contemporary Nigeria: An illustrative case of transposition of the Great Arteri
F F Fadero, O A Oyedeji, A A Aremu, O O Ogunkunle
Nigerian Journal of Paediatrics , 2005,
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