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- ItemOpen Access27) Oladele E.O, Adewumi,Response of Bambara groundnut (Vigna subterranean L.) and Maize (Zea mays L.) to Heavy Metal Stress(ournal of Basic and Applied Sciences. Springer Open; Beni Suef University, Egypt, 2019) Oladele, E.O.; Adewumi, O.O.; Yahaya, T; Taiwo, I.A.Background: Plants are usually the target of environmental pollution. This study, therefore, investigates the effects of Zinc (Zn) and lead Pb on Bambara nut (Vigna subterranean) and Maize (Zea mays) at different concentrations, as well as the possible ameliorating effect of the chelant; ethylene diamine acetate (EDTA) and farmyard manure, on the enzymatic activities, the chlorophyll, total protein, and carbohydrate contents. Results: Findings revealed that Pb and Zn increased the superoxide dismutase (SOD), peroxidase, glutathione synthetase (GSH), malondialdehyde (MDA), and catalase levels with increased concentrations from 100 mg/kg to 200 mg/kg significantly (p < 0.05) compared to the control Maize plants. While in Bambara nut, the superoxide dismutase (SOD), peroxidase, glutathione synthetase (GSH), and catalase levels decreased with increased concentrations from 100 mg/kg to 200 mg/kg compared to control except for the malondialdehyde (MDA) which was increased. For Bambara groundnut, with increased Pb concentrations, the chlorophyll content reduced from 2.94 to 2.00 mg/g. However, there was an increase (up to 4.918 mg/g) in the chlorophyll content with increased zinc nitrate concentrations augmented with EDTA at the highest concentration. Maize plants treated with Pb augmented with farmyard manure showed an increase in chlorophyll content with increased concentrations while those assisted with EDTA still experienced a decrease as metal concentrations increased. Bambara groundnut plant had a mean carbohydrate (%) of 14.79 (control), 17.60 (100 mg/kg of Pb concentration) and 11.20 (200 mg/kg of Pb concentration), indicating a decrease in carbohydrate content with increased Pb concentrations. The same trend was observed for the different Zn and Pb concentrations on the mean total proteins and carbohydrates of both test plants. Generally, Pb and Zn induced oxidative stress in treated plants. Conclusions: Elevated activity of anti-oxidative enzymes can assist as important components of antioxidative defense mechanism against oxidative damage. The results of this study could be beneficial in the understanding of the role of the defense system as well as the detoxification mechanism of Vigna subterranean and Zea mays in efficient tolerance and response to Pb and Zn. This signifies that these plants can act as bioindicators in environmental quality assessment.
- ItemOpen AccessAlternative Payment Systems Implication for Currency Demand and Monetary Policy in Developing Economy: A Case Study of Nigeria(International Journal of Humanities and Social Science, 2013-05-16) Oyelami, Lukman O; Yinusa, Dauda OThis paper investigates the implication of the alternative payment systems on currency demand and monetary policy using monthly data between 2008 and 2010. Vector Error Correction Model (VECM) was used due to endogenous assumption that predicated our model and the co-integrating behavour of variables employed. Previous theoretical and empirical studies on this issue are scarce for developing economies and to best of our knowledge none exists for Nigeria. The empirical results from Impulse-Response reveal that internet payment and mobile money substitute currency while credit card (ATM) and Point of Sale (POS) compliment it. Similarly, Apart from debit card (ATM) and internet payment (WEB) all other payment channels respond negatively to innovation in interest rate throughout the periods including currency. This finding may have serious implication for the conduct of monetary policy especially in developing countries as it alternative payment systems seem to dampen the effectiveness of monetary policy
- ItemOpen AccessAnalysis of Science Process Skills in West African Senior Secondary School Certificate Physics Practical Examinatios in Nigeria(University of Sofia, 2010) Afolabi, FThis study analyzes the science process skills in West African senior secondary school certificate physics practical examinations in Nigeria for a period of 10 years (1998-2007). Ex-post facto design was adopted for the study. The 5 prominent science process skills identified out of the 15 used in the study are: manipulating (17%), calculating (14%), recording (14%), observing (12%) and communicating (11%). The results also show high percentage rate of basic (lower order) science process skills (63%) as compared to the integrated (higher order) science process skills (37%). The results also indicate that the number of basic process skills is significantly higher than the integrated process skills in the West African senior secondary school certificate physics practical examinations in Nigeria. It is recommended that the examination bodies in Nigeria should include more integrated science process skills into the senior secondary school physics practical examinations so as to enable the students to be prone to creativity, problem solv 33 ing, reflective thinking, originality and invention which are vital ingredients for science and technological development of any nation.
- ItemOpen AccessAppraising the Organisation and Management of Distance Learners' Support Services: A Study of some Nigerian Universities(RETRIDAL Natonal Open University of Nigeria, 2013) Alaneme, G.C.; Olayiwola, P.O.In recent time, great emphasis has been placed on the quality of learner support services provided by distance educators. This is as a result of its recognition as an integral and essential component of a distance learning system. Learner support services guide the learners for self-study and serve as a useful interface between the institution and the learner. It is argued that there may not be a provision of learner support services for distance learners in most dual-mode institutions. This paper reports an investigation of the type of learner support services existing for distance learners' in five dual-mode institutions and the only single-mode institution in Nigeria. The learners' perception of the availability and adequacy of such services in one of the dual-mode universities were also studied. The study used the survey method, which involved the use of self- completing questionnaire and observation. Two staff, each of the universities, making a total of twelve, and two hundred and sixteen students formed the sample size of the study. Frequency tables, as well as percentages, were used for the analysis. Findings showed that support services were available though not adequate. Students suggested areas of interest to be improved upon in the learning support provision.
- ItemOpen AccessBank recapitalization and real sector performance: Empirical evidence from Nigeria(International journal of finance and banking studies, 2014-07-20) Akinkoye, Yemi E; Oyelami, Lukman OThis study investigates the impact of bank recapitalization on real sector performance in Nigeria. Specifically, the study examines the direct effect (bank investment) and indirect effect (loans and advances to real sector) on real sector output growth between the period 1986 and 2012.This study departs from previous studies because we aggregate the three leading sectors (agriculture, manufacturing and building and construction) of the Nigerian economy to arrive at our real sector index. Also, having carefully subjected our data to necessary econometric tests we employed chow test for structural break to test for the existence of policy shift between bank capital base and loan to the real sector of the Nigerian economy as a result of bank recapitalisation policy .Similarly, OLS estimates was used to determine the direct and indirect effect of bank capital base and real sector output growth. The results from structure break tests reveal that bank recapitalization policy causes policy shift in bank capital base and loan to real sector thus the policy is of significant impact to real sector performance .In corollary, the result from the OLS strongly indicates that bank capital base has significant effect on realsector output growth directly and indirectly. We then conclude that Nigerian banks should be adequately capitalised as to play active intermediateting roles expected of them in this modern and competitive global economy
- ItemOpen AccessBridging gender gap in physics classrooms: Do teaching approaches matters?(Kampala International University, 2018) Afolabi, F.; Olajuyigbe, A.OGender issues in Nigeria have become an issue of concern in the past few years. As schools and educational institutions become more structured, sex differences in education and academic achievement assume new and more focus of researchers. It is quite obvious that despite government effort in achieving gender equity in all sectors of the economy, gender inequality still persist in achievement and enrolment in physics classroom. This has been attributed to the teachers‟ factor i.e the teacher and her/his methods of teaching physics concept. Therefore, this study investigated to what extent can constructivist instructional strategies bridged gender gap in physics classroom. The study adopted a quasi-experimental research design with 194 SSII physics students as participants. Physics Achievement Test (PAT) was used for data collection with reliability coefficient of 0.76. It was discovered from the analysis that using appropriate teaching approaches helped female students to learn and remember facts, apply skills, comprehend concepts, analyses and synthesises principles which are cognitive objectives of physics education. Recommendations and suggestions were proffered.
- ItemOpen AccessChallenges of Finance and the Performance of Small and Medium Enterprises (SMEs) in Lagos State.(Developing Country Studies, 2015) Adebisi, S.A; Alaneme, G.C.; Ofuani, A.BThis study examined the challenges of finance as is experienced by business operators classified into micro, small and medium scale (MSMEs), and how this affects their financial performance. The study evaluated the efficiency of the different sources of funds available for the SMEs as well as other non financial factors responsible for the poor performance of SMEs in Nigeria. Given some of the government interventions to solving the issue of credit to SMEs, the operations of the micro finance banks were also evaluated to determine their capacity toward closing the funding gap for SMEs. This study became imperative given the conflicting reasons adduced to why small scale enterprises perform poorly in developing economies including Nigeria There was a need to find out if the major challenge of SMEs is indeed credit using the five divisions in Lagos State as the study area. The useable sample size consisted of 222 returned copies of questionnaire out of the 250 distributed representing 88.8% response rates. Quota sampling as well as stratified random sampling technique was applied in the choice of the five divisions under study and the distribution of the sampling frame; while convenience sampling technique was used to get to the individual respondents. Correlation and one sample t-test was used to test the hypotheses. The study indicated significant statistical difference for sources of funds and in the efficiency of the various sources. The challenge of funds still ranked highest followed by unstable power supply, while micro finance banks were expected to do more to assist the SMEs.
- ItemOpen AccessComparing Learners’ Performance in Distance Learning Institute, University of Lagos, Nigeria(Journal of Global Economics and Business, 2020-10) Iyiegbuniwe, J.C.; Alaneme, G. C,; Reju, C. O.This paper examined the differences in the academic performance of learners in accounting and business administration departments of the distance learning institute (DLI), University of Lagos. The aim is to determine if the accounting and business administration learners outperform themselves in the courses that cut across the two departments. Gender and level performances of the learners were considered to see if differences existed. The interpretive single-case study research approach was used to explore the phenomenon, while secondary data was used as a sample to explore and compare the pass rate of these learners. Two theories - ‘Self-determination theory’ and the ‘theory of performance’ underpinned this work. A three factor analysis of variance (ANOVA) was used to test the hypotheses. From the results, the interactions were not significant, but the Accounting students performed better than the Business students. Gender was not a significant determinant of academic performance, and the performance of learners across the levels did not change over the years. This suggests a need for tutors to pay more and special attention to Business Administrative learners in quantitative courses they take.
- ItemOpen AccessConceptual understanding of diffusion and osmosis among senior secondary school students in Lagos State(Science Teachers Association of Nigeria (STAN), 2018-12) Oladipo, A.J.; Ihemedu, C.M.The study investigated the level of students' conceptual understanding of diffusion and osmosis in Lagos State. Full texts attached
- ItemOpen AccessConcession as a Strategic Tool for Ports Efficiency: An Assessment of the Nigerian Ports(American Journal of Business and Management, 2012) Oghojafor, B.E.A; Kuye, O.L.; Alaneme, G.C.This paper examined the problems bedeviling the operations of the Nigerian ports before the concession programme of 2006 and how well the concession has improved the performance of the Ports system. Data were collected through secondary methods such as annual reports, as well as interview and media reports. The content analysis method was adopted in analyzing the data. The findings of the study showed that the concession may for all its worth have been able to earn more income for the government but the Authority has failed to keep its part of the contract agreement especially as it concerns the provision of the enabling environment for port operations; infrastructures were still lacking, dwell time has not substantially reduced and corruption still soared high. The paper submits that the regulators of the maritime system need to do more to ensure that it is not paying lip service to its vision of being the leading port in Africa.
- ItemOpen AccessConstructivist Practices through Guided Discovery Approach: The Effect on Students' Cognitive Achievements in Nigerian Senior Secondary Shoool Physics(University of Sofia, 2009) Akinbobola, A.O; Afolabi, FThe study investigated constructivist practices through guided discovery approach and the effect on students’ cognitive achievement in Nigerian senior secondary school Physics. The study adopted pretestposttest control group design. A criterion sampling technique was used to select six schools out of nine schools that met the criteria. A total of 278 students took part in the study; this was made up of 141 male students and 137 female students in their respective intact classes. Physic Achievement Test (PAT) with the internal consistency of 0.77 using Kuder-Richardson formula (21) was the instrument used in collecting data. The data were analyzed using Analysis of Covariance (ANCOVA) and t-test. The results showed that guided discovery approaches was the most effective in facilitating students’ 233 achievement in physics after being taught using a pictorial organizer. This was followed by demonstration while expository was found to be the least effective. Also, there exists no significant difference in the achievement of male and female physics students taught with guided discovery, demonstration and expository teaching approaches and corresponding exposure to a pictorial organizer. It is recommended that physics teachers should endeavor to use constructivist practices through guided discovery approach in order to engage students in problem solving activities, independent learning, critical thinking and understanding, and creative learning, rather than in rote learning and memorization.
- ItemOpen AccessConstructivist Problem Based Learning Technique and the Academic Achievement of Physics Students with Low Ability Level in Nigerian Secondary Schools(Eurasian Journal of Physics and Chemistry Education, 2009) Afolabi, F; Akinbobola, A.OThe study investigated the effects of constructivist problem based learning technique on the academic achievement of physics students with low ability levels in Nigeria secondary schools. Pre-test-Post-test control group design was adopted for the study. A purposive sampling technique was used to select 2 schools out of 40co-educational secondary schools in Taraba state. 105 senior secondary school II physics students were used for the study. Physics Achievement Test (PAT) and physics Ability Level Test (PALT) were used to collect data. The kuder-Richardson coefficient of internal consistency for PAT and PALT were 0.72 and 0.76 respectively. Three hypotheses were tested at p<0.05 level of significance using t- test analysis. The result of the findings showed that the physics students with low ability level taught with problem based learning technique performed significantly better than those taught with conventional learning method. Also, student taught with problem based learning technique performed significantly better than those taught with conventional method. There was no significant gender difference in the performance of students taught with problem based learning technique. It is recommended that problem-based learning technique should be used in schools to teach various concepts in physics.
- ItemOpen AccessCritical thinking motivation strategies as innovative classroom practices for sustainable environmental development in South Western Nigeria(Kampala International University, 2019) Ogundiwin, O.A.; Oladipo, A.J.Developing countries such as Nigeria started experiencing serious and complex environmental problems in the 1980s. Some of these problems include: over-population, pollution, unchecked industrialization, abuse of natural resources, flooding, erosion, solid waste disposal, desertification and drought. Thus, research in science education has continued to seek for more effective ways of teaching science in order to ensure environmental sustainability. Therefore, this study examined critical thinking motivation strategies as innovative classroom practices for sustainable environmental development in Southwestern Nigeria. The study adopted pretest-posttest control group quasi-experimental design. Four hundred and fifty one (451) SS2 students from six purposively selected senior secondary schools in southwestern Nigeria were used for the study. The schools were randomly assigned to critical thinking motivation strategies (Pre-theoretic Intuition Quiz and Puzzle Based Learning) and control. Instruments used included: Instructional Guides for Teachers; Students’ Environmental Practices Scale (r=0.82), and Assessment Sheet for Evaluating Research Assistants. Two null hypotheses were tested at 0.05 level of significance. Data collected were analysed using ANCOVA and Scheffe post hoc test. Treatment had significant main effect on students’ environmental practices (F(2,438) = 363.48; p<0.05). Pre-Theoretic intuition quiz enhanced practices scores (=65.34) than PBL (=59.18) and Control (=48.33). Pre-theoretic intuition quiz and Puzzle-based learning strategies improved students’ practices towards sustainable environmental development in Southwestern Nigeria. Based on the findings, the study recommended that Pre-Theoretic Intuition Quiz and Puzzle-Based learning strategies should be adopted as viable strategies for the study of environmental pollution and conservation of natural resources.
- ItemOpen AccessDestination Personality Perception as predictor of Symbolic Consumption in Africa’s Tourism Industry(Springer Nature Switzerland AG, 2021) Ajeyalemi, Oladipupo Folorunsho; Olarewaju, Adeniyi DamilolaEven though extant research suggests that many destinations are positioned based on their functional utilities and experiential hedonic values; nonetheless, tourists also tend to embrace destinations that convey symbolic values which expresses and reflects their notion of social identity, lifestyle and self-concept. However, there is a dearth of knowledge concerning tourists’ motivation for symbolic consumption of destinations. This study therefore examined tourists’ behaviour within the African context concerning symbolic consumption of destinations, with emphasis on the predictive influence of destination personality. This was particularly germane because tourism destinations, just like brands or products, have their own unique personalities. Consequently, based on a number of factors, Nigeria was selected to represent the population of study. A survey-based approach was employed and a total of 831 copies of the questionnaire were found useable and acceptable, while factor analysis and multiple regression was employed in the analyses. Findings showed that destination personality is positively related to all three constructs of symbolic consumption. Additionally, four dimensions of destination personality were confirmed, and all proved to be significant individual predictors of symbolic consumption. It was therefore suggested that managers and operators of destinations in Africa need to position and align their respective destinations with the symbolic value attached to tourists’ subconscious and innermost desires. Implications for Africa are discussed.
- ItemOpen AccessDeterminants of Academic Achievement in Introductory Physics Courses Among Distance Learners(Allama Iqbal Open University, 2019) Afolabi, FTeaching quantitative courses in open and distance learning (ODL) has been a challenge to educators. This research work examined factors that determined the academic achievement of distance learners in introductory physics. A questionnaire consisted of twenty-five (25) items was used to collect data from one hundred (100) respondents who were selected using random sampling technique. The result showed that use of technology and technology components were rated high in determining the academic achievement of distance learners. However, the variables examined could be improved upon by incorporating more factors. Therefore, undertaking the research study further using a larger sample size that includes participants from numerous academic institutions would help improve results of the study.
- ItemOpen AccessDeterminants of Financial Inclusion in Sub-Sahara African Countries(Covenant Journal of Business & Social Sciences, 2017-12-16) Oyelami, L.O; Saibu, O.M; Adekunle, B.SAs the exclusion of large percentage of the population has been identified as a major obstacle to inclusive growth and development in developing countries of the world it is against this background this study investigates the determinants of financial inclusion in Sub-Saharan Africa using Panel Autoregressive Distributed Lag (ARDL). The results from the study reveal that financial inclusion in the region is meaningfully influenced by both demand side factors (level of income and literacy) and Supply-side factors (Interest rate and bank innovation proxy by ATM usage). The government in the sub-region should put a policy in place to promote financial literacy and other forms of innovative banking in their respective country as this will go a long way in promoting financial inclusion in the region.
- ItemOpen AccessDiabetogenic Effect of Pregnancy in Sprague-Dawley (SPD) Rats: Potential use as Experimental Model of Human Gestational Diabetes(2010) Taiwo, I.A.; Adewumi, O.O; Odunlade, A.K.; Ogunkanmi, L.A.; Odeigah, P.G.C.The effect of pregnancy on the pattern of oral glucose tolerance was investigated using Sprague-Dawley (SPD) rats. Adult virgin, timed-pregnant and non-pregnant rats were subjected to brief ether anaesthesia after 18- hour overnight fasting period to allow for oro-gastric administration of glucose load at 3.0g/kg body weight (b. wt.) as 30% solution. Glucose concentration determined from the tail blood shows that the starting glucose concentration of the pregnant rats was 6.9+0.4 mmol/l, a significantly higher (P<0.05) value than 5.8 mmol/l, the starting blood glucose concentration of the non-pregnant animals (Controls). The peak blood glucose level attained at the 60th minute was significantly higher (p<0.05) in the pregnant rats (13.5+0.3 mmol/l) as compared to that of the non- pregnant rats (8.5+0.3 mmol/l). After 120minutes, the blood glucose level of the non-pregnant rats dropped to a near starting level while the corresponding value in the pregnant rats remained comparatively higher (P<0.05). Assessment of the rate of appearance and disappearance of glucose in the blood and the determination of glucose response and glucose tolerance indexes (GRI and GTI) respectively showed that pregnancy caused poor glucose utilization in the rats. The results of this short-term study suggest that pregnancy is largely diabetogenic in Sprague- Dawley (SPD) rats. The diabetogenic effect of pregnancy did not necessitate administration of any other diabetogenic agent such as streptozotocin or fructose. Thus, pregnancy induced diabetes in this strain of rats may have potential value as model of gestational diabetes in human.
- ItemOpen AccessDistribution of ABO/Rhesus Blood Groups Among Hepatitis B Virus (HBV) Positive Patients in Lagos, South-Western, Nigeria.(Fudma Journal of Sciences, 2020-09) Oladele, E.O; Yahaya, T; Adewumi, O.O; David, B; Oladipo, A.JThe study aims to determine the distribution of the ABO/Rhesus Blood Groups among Hepatitis B virus (HBV) positive patients in Lagos State. Copies of structured questionnaires were distributed to 162 HBV patients that visited selected health facilities within 6 months in the city. After obtaining relevant information, whole blood samples were collected from each participant in an EDTA bottle. Thereafter, the ABO blood group types (A, B, AB, and O) as well as Rhesus blood groups were determined using standard protocols. Results showed that 48.1% of the participants had type O blood group, followed by type A (26.5%), type B (24.7%), and type AB (0.6%). Moreover, 94.4% of the participants were Rh+. The study showed that HBV was more prevalent among participants with type O blood group (48.1%) with rhesus positivity of 94.4%, compared to other blood group types. This indicates that type O individuals in the city could be more susceptible to HBV infection. There should be public awareness on the association between ABO/Rh blood groups and the prevalence of HBV infection in the state.
- ItemOpen AccessEffect of Mercedes model with embedded assessment strategy and technology on the learning outcomes of biology students in Lagos Nigeria(Technical University of Varna Annual Journal, 2019-12-31) Oladipo, A.J.; Adewumi, O.O.; Ogundiwin, A.O.This study examines the effect of Mercedes Model with Embedded Assessment Strategy and Technology on students’ learning outcomes in Biology. It is a quasi-experimental study which has adopted a pre-test and a post-test control group design. Four hypotheses guided the study. 568 senior secondary class I biology students from 6 randomly selected schools formed the sample size. Three instruments, namely Mercedes Model with Embedded Assessment Strategy and Technology in Diffusion and Osmosis (M2EASTID and M2EASTIO), Conventional Lesson Plan on Diffusion and Osmosis (COLPOD and COLPO), and Test on Students’ Learning Outcomes in Osmosis and Diffusion (TOSLO2D) were used to generate data for the study. Frequency counts, means, deviation and analysis of covariance were used to analyze the data. The results indisputably suggest that there is a significant effect on students’ learning outcomes and their understanding of fundamental biological concepts. Considered should also be the decisive effect of the subject specialization on the dependent measurable characteristics. Mercedes Model with Embedded Assessment Strategies and Technology therefore, proved to be effective and efficient in significantly improving the students’ learning outcomes. Hence, it is highly recommended that biology teachers in senior secondary schools adopt and integrate Mercedes Model with Embedded Assessment Strategy and Technology into their teaching programmes for understanding and application of biology concepts.
- ItemOpen AccessEffect of trainning on the knowledge management processes of business management consulting firms within Lagos metropolis, Nigeria(Osogbo Journal of Management, 2017) Alaneme, G.C.; Chikere, N.AKnowledge sharing and knowledge utilization are knowledge management processes that are vital as they complement training considering the levels of individual capabilities and the dynamic business environment. The issue of whether knowledge gained through training will be eventually shared or utilized among consulting staff; and the willingness to even share or utilize gives cause for concern. Hence it is not clear whether a relationship exists between training and KM processes of sharing and utilization. Therefore, this paper focuses on the effect of training on knowledge sharing and knowledge utilization amongst management consultancy firms within the Lagos metropolis. Three research questions and hypotheses respectively were asked and tested on the subject matter. Self administered questionnaire was retrieved from one hundred and fifty (150) business consulting firms selected using purposive and convenience sampling techniques. Simple regression analysis and Hayes process tool was used to analyze the data. The findings show that training accounts for 11.7% variance in knowledge sharing, and 12.7% in knowledge utilization respectively; in addition, knowledge sharing does not moderate the relationship between training and knowledge utilization. The implication is that the ability and willingness of staff to share knowledge is sparsely influenced by neither training nor the need to utilize gained knowledge