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Search Results: 1 - 10 of 20787 matches for " James Alabi Adediran "
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Growth, Nutrient Uptake Efficiency and Yield of Upland Rice as Influenced by Two Compost Types in Tropical Rainforest-Derived Savannah Transition Zone  [PDF]
Oyeyemi Adigun Dada, Adeniyi Olumuyiwa Togun, James Alabi Adediran, Francis E. Nwilene
Agricultural Sciences (AS) , 2014, DOI: 10.4236/as.2014.55040

Cultivating traditional upland rice cultivars on nutrient depleted soil causes poor and low yield. Little attention is paid to performance of inter-specific NERICA cultivars grown on nutrient deficient soil augmented with different types of compost. Therefore, field trials were conducted during 2010 and 2011 planting seasons in Ibadan to evaluate growth, dry matter, nutrient uptake efficiency and grain yield of upland rice grown on nutrient deficient soil augmented with different types of compost. There were nine treatments comprising of three upland rice cultivars: NERICA I, NERICA II and Ofada, two compost types applied at the rate of 8 t·ha-1: poultry dropping + maize stover (PDMC) and cattle dung + maize stover (CDMC) and control. The treatments were laid out in randomized complete block design and replicated three times. CDMC enhanced growth, nutrient use efficiency, dry matter and grain yield of upland rice cultivars. Performance of Ofada was better than NERICA cultivars. N (24.55 g), P (12.45 g) and K (35.41 g) uptake concentration and grain yield (5.45 t/ha) were highest in Ofada plots augmented with CDMC. Residual effect of compost on growth, yield and nutrient uptake efficiency of upland rice on nutrient deficient soil was marginal.

Phosphorus Level Affects Brown Blotch Disease, Development and Yield of Cowpea
O.F. Owolade,M.O. Akande,B.S. Alabi,J.A. Adediran
World Journal of Agricultural Sciences , 2006,
Abstract: Application of Phosphorus in adequate concentrations could directly or indirectly reduce disease incidence and severity of cowpea brown blotch and improve the forage and grain yield. A field experiment was conducted to investigate the effects of level of phosphorus application on Brown Blotch disease of cowpea (Vigna unguiculata [L.] Walp), caused by Colletotrichum capsici during 2003, 2004 and 2005 planting seasons. Application of phosphorus was at 30, 60, 90 and 120 kg ha 1 of P2O5. As P level increased numbers of petioles, pods, nodules, seed/pod, leaf area and yield significantly increased. Disease incidence and severity of Brown Blotch were significantly reduced at 90 and 120 kg ha 1 of P2O5 was not affected irrespective of the method of application. Application method did not affect yield. Reduction in brown blotch disease at higher levels of P was recorded.
The Potential Role of a Health and Demographic Surveillance System in Rural Northern Nigeria to Reduce Maternal and Child Deaths  [PDF]
Olatunji Alabi, Henry V. Doctor
Health (Health) , 2015, DOI: 10.4236/health.2015.712189
Abstract: There exist a huge gap between generation of evidence-based research findings and its use to inform policies in most developing countries. Further, it is evident that most developing countries are lagging behind in formulating appropriate policies aimed at improving people’s lives due to lack of evidence-based research findings. We describe the potential of a Health and Demographic Surveillance System (HDSS) in informing appropriate health interventions towards reducing the high maternal and child deaths in rural communities of north western Nigeria through the Verbal Autopsy (VA) data collection. VA data collection involves the use of VA questionnaires—set of open ended and closed ended questions adapted from the World Health Organization (WHO) module— administered to the caregivers, parents or family members of a deceased person to elicit information on signs and symptoms and their durations, and other pertinent information about the deceased in the period before death. VA interviews were conducted by trained VA enumerators on all 2100 deaths reported during the update round 4 of routine data collection (July-December, 2012) and returned forms were checked for consistencies and completeness by a trained research officer. The forms were later coded by trained medical doctors for possible cause of death using the WHO International Classification of Diseases (ICD 10) codes. Fifty cases of neonatal deaths, 1650 cases of infant and child deaths, and 400 cases of adult deaths were reported during the update round 4 data collection. Neonatal sepsis was reported as the leading cause of neonatal deaths (58%) while malaria and intestinal infectious diseases were reported as the leading cause of infant and child deaths and adult deaths respectively (45% and 17%, respectively). The study provides documented evidence of high neonatal deaths due to neonatal sepsis in an area with low hygiene and high home delivery rates. The findings from the VA data collection at Nahuche HDSS inform the intervention study on home distribution of chlorhexidine to pregnant women. The findings from this study call on government and other stakeholders to strengthen research capacity to generate timely data and findings returned to policy makers within the shortest period of time for decision making.
Geology and Environmental Impact Assessment and Benefit of Granitic Rocks of Minna Area, Northwestern Nigeria
AA Alabi
Ethiopian Journal of Environmental Studies and Management , 2011,
Abstract: Nigeria basement complex has shown that the older granites are high level intrusions emplaced by stoping and diapiric process and include spectrum of rocks varying in composition from tonalite through granodiorite to granite. The intense regional deformation which accompanied and preceded the emplacement of the older granite result in it pronounced and wide spread northeast trend. The granites termed older granites in Nigeria have been dated severally at 500-750 million years. Minna is situated in the central part of the Nigeria basement complex surrounded by rugged terrain of granitic rocks, this necessitates the geological and impact assessment of the granitic rock in Minna. Field study reveals eight granitic masses which occur as Paiko and Minna batholiths and as continuous ridge in north-south direction of about 18 kms and average height of 350 meters above sea level. In hand specimen, the granitic rocks vary from medium, porphyritic to coarse variety from light colored to medium dark colored. Key Words: Geology, Environmental impact, Assessment, Benefit and Granitic Rocks.
Teacher Readiness to Integrate Information Technology into Teaching and Learning Processes in Nigerian Secondary Schools: A Case Study
A Aremu, EM Adediran
African Research Review , 2011,
Abstract: The first mission statement of Nigerian National policy for InformationTechnology (IT) is to use IT for education and a major underlining factor in achieving the goals of the National IT policy is the readiness of teachers to use IT. It is against this background that this study was set to investigate the readiness of teachers in Nigeria to integrate IT in instruction. Three research questions were generated and answered in the study. The study adopted the descriptive survey design using two questionnaires (Teachers Information Technology Preparedness Questionnaire and Basic Information Technology Practical Skills Activities) to collect data from a total of 470 teachers who were selected through the simple random sampling technique. Data analysis for the research questions was done through the use of simple percentage and frequency calculation. The results revealed that majority of the teachers have low level of knowledge about IT. In the same vein, majority of teachers in the schools in this study did not have adequate IT skills. However, the teachers have positive attitude toward the use of information technology.
Influence of nitrogen, phosphorus and potassium application on the yield of maize in the savanna zone of Nigeria
JOS Kogbe, JA Adediran
African Journal of Biotechnology , 2003,
Abstract: Field trials testing the effects of five rates each of N, P and K application on three hybrid and two open-pollinated maize varieties were conducted in three separate experiments on an Arenic haplustalf (USDA) at Ilora in the derived savanna and Typic paleustalf (USDA) at Mokwa in the southern guinea savanna of Nigeria. The hybrid maize varieties planted were 8516-12, 8321-18 and 8329-15 and were compared with the open-pollinated maize, TZSR-Y and TZSR-W. Nitrogen was applied at rates 0-200 kg ha-1 in the first trial, while P and K were supplied as basal nutrients. In the second trial, P was applied at rates 0- 80 kg P2O5 ha-1 using basal N and K fertilizers. In another trial, K was applied at rates 0-120 kg ha-1 with blanket application of N and P. The hybrid maize gave higher yields and used N and P more efficiently than the open pollinated at both trial locations. The yield of maize was higher in the southern guinea savanna than in the derived savanna. The performance of the hybrid varieties followed in the ascending order of 8516-12, 8321-18 and 8329-15. The optimum rates of N and P for maize grown in the derived savanna were 100 and 40 kg ha-1 respectively. In the southern guinea savanna the open pollinated and hybrid varieties responded up to 150 and 200 kg N ha-1 respectively. The 8516-12 showed higher N and P use efficiency than other varieties. Consequently, planting such variety could be advantageous, using minimal dose of fertilizer most especially, where farmers have less access to fertilizer.
Dyslipidaemia among Nigerian Oil Workers with Type 2 Diabetes Mellitus
A Edo, OS Adediran
West African Journal of Medicine , 2011,
Abstract: Background: Nigerians working in the oil industry appear to maintain a ‘westernised’ lifestyle and thus may be at increased risk for diabetes mellitus and related disorders. There are several reports on lipid profile in type 2 DM among Nigerians (non-oil workers) in the general population from different parts of the country. However the lipid profile of Nigerian oil workers with type 2 DM has not been previously reported. Objective: To determine the serum lipid profile of Nigerian oil workers with or without type 2 diabetes mellitus. Methods: Hospital records of Nigerian oil workers with type 2 diabetes mellitus were retrieved for the study. Data extracted included the patient’s age, sex, weight, height, waist circumference, blood pressure and fasting lipid profile. Hospital staff without DM served as controls. Results: There were 52 Nigerians with type 2 DM and 99 controls. Serum triglyceride levels were significantly higher in diabetics than in controls (1.91±1.10 vs 1.27 ± 0.58mmol/l, p<0.001). The other lipid fractions were comparable in both diabetics and non-diabetics. High-density lipoprotein cholesterol abnormality was found in 32.7% of diabetic subjects. Serum total cholesterol dyslipidaemia, triglyceride dsylipidaemia and low-density lipoprotein cholesterol dyslipidaemia were found in 26.9%, 19.2% and 9.6% of the diabetic subjects respectively. Conclusion: Dyslipidaemia in Nigerian oil workers with T2DM is common and consists mainly of hypertriglycendaemic and low HDL cholesterol. Measures should be instituted to reduce the lipid levels in these patients in order to minimize the risk of cardiovascular events.
The Effects of Blends of Enugu Coal and Anthracite on Tin Smelting Using Nigerian Dogo Na Hauwa Cassiterite  [PDF]
Fatai Afolabi Ayeni, OladunniOyelola Alabi, Rose Okara
Journal of Minerals and Materials Characterization and Engineering (JMMCE) , 2013, DOI: 10.4236/jmmce.2013.16052
Abstract: The effects of blending Enugu coal and anthracite on tin smelting using Nigerian Dogo Na Hauwa cassiterite have been studied. The work utilized various blends ranging from 100% to 0% anthracite. The content of the Enugu coal in the blend varied from 5% to 100%. The various tin metal recovery percentage for each batch of smelting using various blends was noted. Anthracite alone had the highest recovery of 71.90% followed by 5% blend of Enugu with anthracite. The result, however, showed that as the Enugu Coal was increased in the blend, the recovery was also decreasing. This equally affected the quality of tin metal recovered by increasing the grade. The work recommended that since the cost of production is the critical issue, 5% - 15% range of Enugu Coal should be used in preparing blends to bring down the cost of imported anthracite which is put at $906.69 per ton. The use of 15% Enugu coal will result in lowering the cost of imported anthracite by $136.0.
Assessments of Some Simultaneous Equation Estimation Techniques with Normally and Uniformly Distributed Exogenous Variables  [PDF]
O. O. Alabi, B. A. Oyejola
Applied Mathematics (AM) , 2015, DOI: 10.4236/am.2015.611167
Abstract: In each equation of simultaneous Equation model, the exogenous variables need to satisfy all the basic assumptions of linear regression model and be non-negative especially in econometric studies. This study examines the performances of the Ordinary Least Square (OLS), Two Stage Least Square (2SLS), Three Stage Least Square (3SLS) and Full Information Maximum Likelihood (FIML) Estimators of simultaneous equation model with both normally and uniformly distributed exogenous variables under different identification status of simultaneous equation model when there is no correlation of any form in the model. Four structural equation models were formed such that the first and third are exact identified while the second and fourth are over identified equations. Monte Carlo experiments conducted 5000 times at different levels of sample size (n = 10, 20, 30, 50, 100, 250 and 500) were used as criteria to compare the estimators. Result shows that OLS estimator is best in the exact identified equation except with normally distributed exogenous variables when \"\". At these instances, 2SLS estimator is best. In over identified equations, the 2SLS estimator is best except with normally distributed exogenous variables when the sample size is small and large, \"\" and \"\" ; and with uniformly distributed exogenous variables when n is very large, \"\" , the best estimator is either OLS or FIML or 3SLS.
An Accurate and Computationally Efficient Explicit Friction Factor Model  [PDF]
Uchechukwu Herbert Offor, Sunday Boladale Alabi
Advances in Chemical Engineering and Science (ACES) , 2016, DOI: 10.4236/aces.2016.63024
Abstract: The implicit Colebrook equation has been the standard for estimating pipe friction factor in a fully developed turbulent regime. Several alternative explicit models to the Colebrook equation have been proposed. To date, most of the accurate explicit models have been those with three logarithmic functions, but they require more computational time than the Colebrook equation. In this study, a new explicit non-linear regression model which has only two logarithmic functions is developed. The new model, when compared with the existing extremely accurate models, gives rise to the least average and maximum relative errors of 0.0025% and 0.0664%, respectively. Moreover, it requires far less computational time than the Colebrook equation. It is therefore concluded that the new explicit model provides a good trade-off between accuracy and relative computational efficiency for pipe friction factor estimation in the fully developed turbulent flow regime.
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