Eggshell Utilisation as an Adsorbent for Treatability of Heavy Metals in Paint Wastewater

Adeniyi Michael Aderemi,Samuel Ayoyemi Amoran,Ahmed Kayode Aluko,Richard Ojo Elesho,Oluwakemi Adewonuola Majekodun 대한환경공학회 2021 대한환경공학회지 Vol.43 No.6

Cooperative Learning Strategy in Enhancing Mathematics Achievement of Low Learning Ability Students in Lagos State, Nigeria

Adeniyi Comfort Olawumi,Akanmu Morenikeji Alex APEC국제교육협력원 2019 Asia-Pacific Cybereducation Journal Vol.15 No.1

A typical Mathematics class is comprised of a heterogeneous group of students in terms of academic ability, learning styles, intelligence quotient, home background and the likes. The inability of the teachers to effectively manage these differences usually leads to poor academic achievement among the learners, especially the weak ones. This study therefore determined the effectiveness of Cooperative Learning Technique on low learning ability students in Mathematics. Quasi-experimental research design was adopted. The sample size purposively selected consisted of 137 students from four schools in Education District II and IV, Lagos State, Nigeria. Two hypotheses were raised and tested at 0.05 level of significance. The collected data were analyzed using t-test. The result of the analysis revealed that cooperative learning strategy enhanced the low ability students’ achievement in Mathematics. Also, cooperative learning strategy enhanced low learning abilities students in understanding mathematics irrespective of their gender. It is therefore, recommended that teachers should adopt the cooperative learning strategy to teach Mathematics. For teachers to be more conversant with the use of cooperative learning strategy, as well as other interactive methods of teaching mathematics, workshops and conferences should be organized for secondary schools on the use of different methods of teaching learners from different ability levels, especially cooperative learning strategy.

Diaspora Plurality, Imprecision of ‘African Diaspora,’ and the Emergence of Yorùbá Diaspora Studies

Emmanuel Adeniyi 건국대학교 아시아·디아스포라 연구소 2021 International Journal of Diaspora&Cultural Critici Vol.11 No.2

This paper interrogates the concept of diaspora vis-à-vis the narrowness, imprecision and misrepresentation of various migration categories as models of diaspora. Drawing on theorizations of scholars within the knowledge field, I rethink the concept and contest the appropriateness of the rubric (African Diaspora), submitting that the term is a misnomer that panders to the European supremacist agenda of rendering Africa and its diasporas as homogenized Other. The article calls for the identification, recognition and study of multiple African Diasporas. Consequently, it identifies the Yorùbá Diaspora in the Americas as a specific diaspora group that can help validate the imperativeness of fostering specificity on African cultural groups around the world. The article discusses two categories of Yorùbá Diaspora (old and new) and advocates adoption of Yorùbá Diaspora Studies as a hyponymous construct within the superordinate African Diaspora Studies.

Testing the Robustness of Public Spending Determinants on Public Spending Decisions in Nigeria

Samson Adeniyi Aladejare 한국국제경제학회 2019 International Economic Journal Vol.33 No.1

This study tests the robustness of variables used in determining public spending in Nigeria from 1970 to 2016. This is achieved through the simultaneous use of a symmetric and asymmetric ARDL and Toda–Yamamoto causality procedures. The empirical findings reveal sufficient evidence of asymmetry in the behaviour of policy variables such as oil price, inflation rate, and the exchange rate. Hence, the conclusion that asymmetry significantly exists in key variables, used by Nigerian fiscal authorities for spending decision-making. Also, the asymmetric Toda–Yamamoto causality result reveals that increase in oil price, depreciation in the Naira value, and government revenue are the key determinants of public spending. Hence, the revenuespend hypothesis. It is recommended that the re-investment of surplus proceeds from oil receipts should be given much priority. Specifically, the re-investment of such revenues into sectors such as manufacturing, construction, and information technology, will speed-up the diversification process of the revenue base; and sufficiently reduce the negative effects a decline in the oil price, and the Naira exchange rate will have on public spending. The policy of inflation targeting by the monetary authority should be sustained to check unwarranted inflationary trajectory; which may have an adverse effect on public spending value.

Effect of Solvent Pretreatment of Polyester Fiber on its Dye-Uptake Based on the Concept of Solubility Parameters

Olanibugbe Adeniyi Samuel Adeakin,Adeola Victor Popoola,Kingsley Kema Ajekwene 한국섬유공학회 2022 Fibers and polymers Vol.23 No.11

The present work investigates the effect of solvents with known solubility parameters on polyester filament yarn. The polyethylene terephthalate (PET) fibers were pretreated in 10 different solvents initially at 30 oC and 50 oC before dyeingprocedure. The degree to which the solvents affected the morphological structure of the PET fibers was examined usingscanning electron microscopy (SEM). The degree of cracks and voids increased for all the samples after pretreatment. Thedevelopment of cracks and voids was much more for benzyl alcohol treated samples. The degree of liquid retention was leastin chloroform, acetone, and n-hexane treated samples while the highest retention was observed in benzyl alcohol treatedsamples. This is attributed to their solubility parameters in relation to that of the polyester fiber. The specific stress and dyeexhaustion was determined as a function of time of treatment. The dyeing kinetics for all the solvent pretreated samplesshowed similar pattern. However, an optimum dye exhaustion of about 25 % was obtained for the untreated sample (control). The dye exhaustion obtained for benzyl alcohol and dimethyl formamide treated samples was 94 % and 82 %, respectively,which was very high compared to the other pretreated samples.

Macroeconomic Vs. Resource Determinants of Economic Growth in Africa: A COMESA and ECOWAS Study

Samson Adeniyi Aladejare 한국국제경제학회 2020 International Economic Journal Vol.34 No.1

This study simultaneously investigates the macroeconomic and the resource determinants of economic growth in the ECOWAS and the COMESA regions. The objective of this study was to empirically ascertain which of the two determinant is key for growth in both regions. To achieve this, the pool mean group technique of analysis was adopted. Empirical findings from the study analysis suggest that long-run economic growth determination in the ECOWAS region, is more reliant on macroeconomic variables and not resource price. While in the COMESA, the impact of macroeconomic determinants on long-run growth is less. In addition, reliance on resource price for long-run growth in the COMESA is found to be growth decelerating. In the short-run, growth determination in the ECOWAS is highly responsive to resource price negatively, while macroeconomic determinants of growth are weak. However, findings for the COMESA region suggest that short-run growth is highly responsive to macroeconomic determinants negatively, and to resource price positively. Hence, for countries in both regions to achieve sustainable long-term growth, there is the need for improvement in their macroeconomic management.

A Review of Microbial Molecular Profiling during Biomass Valorization

Adewale Adeniyi,Ibrahim Bello,Taofeek Mukaila,Ademola Hammed 한국생물공학회 2022 Biotechnology and Bioprocess Engineering Vol.27 No.4

The 21st century’s goal to reduce CO2 emission is the driving force to replace petroleum with biomass. Although biomass has the potential to provide about ~25% of global energy demands, biomass valorization (conversion to value-added products [VAPs]) also contributes to CO2 emissions. The use of microbial consortia rather than a single species is more efficient for biomass valorization. Thus, several molecular methods have been developed to decipher the composition of these consortia. Understanding the composition and diversity of microbes in a fermentationbased biomass valorization will enable the synthesis of artificial consortia to produce desirable products. Most works have identified the dominant microbial species in different biomass valorization processes and highlighted the influence of variables such as nanoparticles and fermentation inhibitors on microbial diversity and dynamics. The prominent microbial species in the microbial consortium are also discussed. This review will guide future works on microbial molecular profiling during biomass valorization.

SAVING-INVESTMENT NEXUS IN DEVELOPING COUNTRIES: DOES FINANCIAL DEVELOPMENT MATTER?

OLUWATOSIN ADENIYI,FESTUS O. EGWAIKHIDE 중앙대학교 경제연구소 2013 Journal of Economic Development Vol.38 No.2

The Feldstein-Horioka puzzle is re-examined using a sample of 20 sub-Saharan Africa (SSA) countries. Unlike the extant literature we demonstrate the expediency of sustenance of financial sector reforms for the saving-investment nexus in SSA. Findings showed saving retention coefficients similar in magnitude to those already reported for developing countries, particularly SSA. In addition, however, the results uncovered a telling intervening role for financial deepening in the saving-investment space. Going forward, the precise nature and corresponding policy implications of this role should form an integral part of discussions in both academic and policy circles.

FOREIGN CAPITAL FLOWS, FINANCIAL DEVELOPMENT AND GROWTH IN SUB-SAHARAN AFRICA

OLUWATOSIN ADENIYI,BELLO AJIDE,AFEES SALISU 중앙대학교 경제연구소 2015 Journal of Economic Development Vol.40 No.3

This paper investigated how financial development influences the relationship between foreign direct investment (FDI) and economic growth in selected Sub-Saharan Africa (SSA) countries. This study considered three alternative measures of financial development (FD) and their impacts on the FDI-growth linkage. It also explored the possibility of nonlinearities in the tripartite relationships. The results showed a positive influence of FDI on economic growth. Financial system development also had growth-promoting impact in the presence of FDI flows. Interestingly, these findings remained robust when potential endogeneity was accounted for using a well known instrumental variable (IV) estimator. Digging deeper, the findings also supported the existence of non-linearities in the role of FD in the FDI-growth association. In policy terms, these SSA countries will reap more growth benefits from foreign capital flows especially if financial reforms are sustained.

Resource Price, Macroeconomic Distortions, and Public Outlay: Evidence from Oil-Exporting Countries

Samson Adeniyi Aladejare 한국국제경제학회 2018 International Economic Journal Vol.32 No.2

This study examines the repercussions of oil price and macroeconomic distortions on government expenditure in 15 oil-exporting countries. Adapting the Pooled Mean Group analytical approach, the long-run findings are indicative of a blend of the Dutch disease and rent-seeking hypothesis of the resource curse theory in oil-exporting countries. These effects crucially impact on the poor growth of the real sector in these countries, needed for diversification of their revenue base. Furthermore, both resource curses account for one of the reasonswhyfiscal deficits in oil-exporting countries have been on the rise. The country short-run coefficient for the balance of payment, economic growth, and exchange rate also supports the Dutch disease and rent-seeking hypothesis mix found in the long run. Also, the significant negative impact of oil rents in most countries shows that oil-exporting countries have been making attempts at diversifying their income sources; this is because proceeds from oil cannot be relied upon to adequately finance growing government expenditure, due to the volatile nature of oil prices, thus suggesting also that the volatility hypothesis is valid for most oil-exporting countries in the short run.