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Pan-African Journal of Research and Innovation in Education, Training and Vocational Studies Vol. 1 No. 1 2026

Effects of Gamified Station-Rotation Instructional Approach on Students' English Language Reading Comprehension in Senior Secondary Schools in Kebbi State, Nigeria

This study examined whether combining gamification with station-rotation activities could improve the English reading comprehension of secondary school students in Kebbi State. The study assessed not only whether the approach was effective overall, but also whether students at different levels of prior achievement responded differently to it. A total of 120 SS II students from two secondary schools in Birnin Kebbi participated: 67 in a gamified station-rotation program and 53 in conventional instruction. Reading comprehension was measured using a 40-item test covering seven skills: identifying main ideas, locating supporting details, understanding vocabulary in context, making inferences, interpreting meaning, recognizing author's purpose, and applying what was read. After six weeks of instruction, students in the gamified station-rotation group scored significantly higher on the posttest (M = 27.84, SD = 4.18) than those receiving traditional instruction (M = 22.31, SD = 4.06). After adjusting for pretest scores, this 5.53-point difference was statistically significant, F(1, 117) = 32.47, p < .001, ηp² = .217. The benefit of the approach was not uniform across achievement levels: although students at all levels improved more under the gamified approach, average-achieving students showed the largest gains, suggesting the approach may be particularly effective for students in the middle range of performance. Because the experimental and control groups were drawn from different schools with different teachers, the findings are presented as a promising association observed under real classroom conditions rather than definitive proof of a causal effect. The results nonetheless suggest that teachers should consider adopting structured gamified station-rotation activities, with additional support built in for students who are struggling.

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Pan-African Journal of Research and Innovation in Arts, Humanities and Philosophy Vol. 1 No. 1 2026

Acoustic Variations in Interdental Fricatives /θ/ and /ð/ among Educated Hausa–English Bilinguals in Northwestern Nigeria

Interdental fricatives /θ/ and /ð/ are typologically rare and absent from the Hausa phonemic inventory, making their production by Hausa–English bilinguals a theoretically informative test case for second-language speech acquisition and Nigerian English phonology, yet no prior study has instrumentally measured their acoustic properties in this population. This study acoustically characterises /θ/ and /ð/ production among thirty educated Hausa–English bilingual speakers (aged 15–19) in Northwestern Nigeria and evaluates the influence of age, gender, education level, and language proficiency on that variation. Participants read a word list containing /θ/ and /ð/ tokens across phonetic positions; recordings were segmented in Praat and measured for duration, spectral centre of gravity, spectral standard deviation, skewness, kurtosis, and intensity, and linear mixed-effects models tested the effects of the sociolinguistic predictors on each acoustic measure. Participants produced /θ/ and /ð/ with significantly longer durations and lower spectral centre of gravity than Standard English reference values, consistent with a more anterior place of articulation, and language proficiency emerged as the strongest predictor of acoustic variation, while age, gender, and education level were not significant predictors. These findings extend earlier auditory-impressionistic descriptions of Hausa-accented English with quantified acoustic evidence and identify bilingual proficiency as the primary driver of phonetic accuracy in interdental fricative production, with implications for pronunciation pedagogy in Nigerian English contexts.

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Pan-African Journal of Research and Innovation in Arts, Humanities and Philosophy Vol. 1 No. 1 2026

Students' Perspectives on the Use of L1 in English Language (as an L2) Classrooms: A Case Study of the Department of English, Isa Kaita College of Education, Dutsinma, Katsina State, Nigeria

This study investigates the reasons for, and perspectives of, students regarding the use of their first language (L1) in English as a Second Language (ESL) classrooms at Isa Kaita College of Education, Dutsin-ma, Katsina State, Nigeria. It is grounded in the ongoing scholarly debate about the role of learners' mother tongue in second language acquisition (Cook, 2001; Cummins, 2007; Turnbull & Dailey-O'Cain, 2009). Using a convergent mixed-methods design, data were collected through an online survey (N = 51) and semi-structured follow-up interviews (n = 12). Survey data were analysed using descriptive statistics, and interview data were analysed thematically following Braun and Clarke (2021). Results showed that students used their first language, Hausa, for a variety of purposes grammar clarification, understanding instructions, vocabulary negotiation, anxiety reduction and peer collaboration with the frequency of use declining descriptively by English proficiency level and year of study. Interview findings elaborated these patterns, revealing that students experience Hausa as a comprehension bridge, an anxiety buffer and a peer-learning tool, while becoming more selective in its use as they advance. Attitudes toward limited L1 use were broadly positive and nuanced. These findings align with previous research indicating that L1 use serves cognitive, metalinguistic and affective functions in language learning (Storch & Wigglesworth, 2003; Swain & Lapkin, 2000). The findings can help teachers and students understand students' reasons for L1 use, informing classroom management practices designed to support the effective development of English language proficiency.

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Pan-African Journal of Research and Innovation in Education, Training and Vocational Studies Vol. 1 No. 1 2026

An Overview of Pre-Colonial Textile Technology in Katsina State, Nigeria

Long before industrial manufacturing reached Northern Nigeria, artisans of Kasar Katsina operated a technologically sophisticated textile production system rooted in the Central Sudan. This study reconstructs the complete chaîne opératoire that sustained the industry, from the cultivation of short-staple cotton (auduga) and the harvesting of wild forest silk (tsamiya), through the construction of the double-heedle treadle loom (uwar masaka), to subterranean indigo-vat dyeing (marina), mallet-glazing (bugu), and symbolic hand embroidery. Drawing on archaeological survey, oral testimony, and archival sources, the study documents evidence of an industrialised weaving and dyeing tradition — including the surplus dye pits still visible — across eight historic centres of central Katsina: Dabawa, Wurma, Birchi, Illaila, Kafin Dangi, Ingawa, Mahuta, and Chida. It examines the artisans who produced local cloth, their raw materials and tooling, their socio-economic organisation, and the colonial-era factors associated with the industry's decline and situates hand-woven attire within wider debates on national identity. The study concludes by recommending the integration of this technical heritage into vocational curricula and cultural preservation frameworks.

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Pan-African Journal of Research and Innovation in Education, Training and Vocational Studies Vol. 1 No. 1 2026

Gender and Subject Domain Differences in Goal Orientations among Pre-Service Teachers in Nigerian Colleges of Education

This research sought to explain gender and subject domain differences in pre-service teachers' goal orientations in Nigerian Colleges of Education. Specifically, it examined the dimensions of learning and performance goal orientation among genders and subject domains in Colleges of Education with implications for teacher education policy and practice. It was a correlational research design involving 400 pre-service teachers (200 males, 200 females; 200 arts students and 200 science students) drawn using stratified random sampling method from two colleges of education in Katsina State, Nigeria. The Achievement Goal Questionnaire (Elliot & Church, 1997) was adopted and re-validated for this study and used for data collection. The collected data were analysed using descriptive and inferential statistics. Descriptively, pre-service teachers possessed moderately high learning goal orientation (M = 3.87, S.D = .58) and moderate performance goal orientation (M = 3.12, S.D = .71). As for gender differences, a significant difference was observed in learning goal orientation, with females (M = 4.02, S.D = .52) scoring significantly higher than males (M = 3.72, S.D = .61), t(398) = 5.34, p < .001, d = 0.53. Similarly, a significant subject-domain difference was found, with science students (M = 4.01, S.D = .54) scoring significantly higher than Arts students (M = 3.73, S.D = .60), t(398) = 4.98, p < .001, d = 0.50. No significant gender or subject-domain differences were found for performance goal orientation, and no significant gender × subject-domain interaction was found for learning goal orientation, F(1, 396) = 1.24, p = .266, η² = .003. Female and Science pre-service teachers are more learning goal oriented. Teacher education programs need to infuse and cultivate motivational strategies that promote learning goal orientation among male pre-service teachers and Arts-student teachers. Mixed methods research designs would be needed to explore achievement goal orientation and teaching effectiveness during practicum.

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Pan-African Journal of Research and Innovation in Arts, Humanities and Philosophy Vol. 1 No. 1 2026

Waste Disposal Practices, Environmental Attitudes and Wellbeing of Undergraduates in Lagos State, Nigeria.

Healthy living of residents in every society is a prerequisite for continuous growth in the society. It has been observed that schools especially tertiary institutions are sited close to industries and markets in Lagos state which has made waste becomes a menace to students’ wellbeing.  Hence, this study was conducted to examine waste disposal practices, environmental attitudes and well-being of undergraduates in Lagos State. The study was guided by 3 research objectives which is to determine the relationship between waste disposal practices and environmental attitudes among undergraduates. Also, to determine the relationship between waste disposal practices and well-being of undergraduates and to determine the relationship between environmental attitudes and well-being of undergraduates in Lagos State. The study adopted a cross-sectional survey research design. The population of the study covered all undergraduate students in Lagos State. Purposive and simply random sampling technique was used to obtain 240 respondents. Data were collected through a self-structured questionnaire. The data obtained were analyzed using Pearson Product Monument Correlation Coefficient. The study found that there is a significant relationship between waste disposal practices and environmental attitudes of undergraduates; waste disposal practices and well-being of undergraduates and finally a significant relationship was found between environmental attitude and well-being of undergraduates in Lagos State. Based on the findings of the study, it was concluded that waste disposal practices and environmental attitude remained significant factors that are associated with undergraduates’ well-being and recommends that adequate sensitization and awareness programmes should be done in tertiary institutions to inculcate right environmental attitude that foster proper waste disposal practices among students.

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Pan-African Journal of Research and Innovation in Agricultural and Plant Sciences Vol. 1 No. 1 2026

Ecological Indices of Crude Oil Impacted Vegetation

Vegetation can be regarded as the product of multiple environmental conditions affecting sets of plants living together in a given time and place. The study will give insight into impact of crude-oil pollution on ecological indices and plant species composition of vegetation in the K-Dere community. Random sampling was used for the vegetation assessment. Four quadrat each measuring 40 m x 40 m represent the sample area from which plant species composition of the vegetation at the study site was sampled. Plot 1, 2 and 3 were sampled areas containing plant community .growing in crude oil contaminated soil whereas the control represent uncontaminated plant community. The control plot has the highest frequency with 35 plant species having 100% occurrence. Ageratum conyzoides, Panicum maximum and Ficus sp., recorded the highest density. Mucuna pruriens, Cochlospermum planchonii and Ageratum conyzoides reecorded the highest abundance. Mucuna pruriens exhibited the highest A/F ratio followed by Cochlospermum planchonii, and Ageratum houstonianum. The highest importance value index was observed in Mucuna pruriens, Ageratum conyzoids and Panicum maximum. The vegetation composition suggests active regeneration and successional recovery, with dominance shifting from herbaceous colonizers to woody species in some plots

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Pan-African Journal of Research and Innovation in Social Sciences and Behavioural Studies Vol. 1 No. 1 2026

A Discourse on the National Question and Democratic Development in Nigeria

A country can only be referred to as a sovereign nation when there is a legitimate system of administration in place that enjoys the backing and support of all its citizens. A heterogeneous society like Nigeria has its attendant challenges arising from the diverse existing ethnic formations, which are characterized with different cultures and ideologies. It is the desire of every member of a community to be recognized, and provided with the enabling environment to carry out his/her legitimate business activities without fear, intimidation or the perceived notion of being treated as less deserving. The issues of equality, equity, freedom of movement and association are such that need not be debated nor clamoured for, as all men are created equal, and no religion, creed, tongue or tribe should be regarded as superior and the other inferior. The case for resource control, political participation and representation has further exacerbated the quest for national unity. This discourse is aimed at examining the challenges associated with the national question and democratic development in Nigeria. The study relied on the secondary sources for collection of data. The structural functional theory was employed in the research study. Findings from the study indicated the presence of division arising largely as a result of unequal distribution of state resources, and the agitation by minorities for state creation, and equal representation. The findings from the study recommended the need for inclusive government, intercultural dialogue, and peaceful conflict resolution.

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Pan-African Journal of Research and Innovation in Business, Finance and Management Vol. 1 No. 1 2026

Determinants of Milk Import Substitution in Eswatini

Eswatini continues to face persistent dairy import dependency despite high per capita consumption and successive government policy commitments to achieve self-sufficiency. This study investigated the determinants of milk import substitution in Eswatini from 1981 to 2023 using annual time series data sourced from the Eswatini Dairy Board (EDB), the World Bank, and the International Monetary Fund (IMF). The milk import substitution ratio (IR) was constructed using the absolute measure of import substitution, calculated as the difference between import availability ratios over time: R = (M₀/S₀) - (M₁/S₁), where M represents imports and S represents total supply (domestic production plus imports). A positive IR indicates that domestic production is displacing imports (import substitution is occurring), while a negative IR indicates that imports are growing faster than domestic production's ability to displace them (import dependency is increasing). A higher IR value indicates greater import substitution, with positive values signifying successful substitution. The analysis employed the Augmented Dickey-Fuller (ADF) unit root test and the Autoregressive Distributed Lag (ARDL) Bounds Testing approach with an Error Correction Model (ECM). ADF tests confirmed mixed integration orders (I(0) and I(1)), validating the ARDL framework. The Bounds test established a robust long-run relationship at the 5% significance level (F-statistic = 61.31627; 5% upper bound = 4.923). The estimated Error Correction Term (ECT = -1.1238) confirmed oscillatory but stable convergence to long-run equilibrium. In the long run, a 1% increase in domestic milk production (INDM) improved the import substitution ratio by 0.00196 points, while a 1% increase in milk imports (INMI) reduced the substitution ratio by 0.00198 points. The structural break in 1995 showed a negative coefficient (-0.0748), suggesting a possible decline in the substitution ratio, though this was not statistically significant (p = 0.2713). Similarly, the negative time trend (-0.0006 points per year) was not statistically significant (p = 0.7398). Real GDP, population growth rate, and the real effective exchange rate were not statistically significant long-run determinants at the 5% level. In the short run, changes in population growth had significant effects: current changes negatively influenced the ratio, while lagged changes positively influenced it. The overall Import Substitution Ratio averaged approximately -0.75, confirming persistent structural dependency. This is the first study to construct and analyze the milk import substitution ratio in Eswatini over the 1981-2023 period, providing a unique contribution to understanding dairy policy effectiveness and import substitution dynamics. Recommendations include strengthening domestic production capacity through targeted subsidies and veterinary extension services, implementing strategic import management mechanisms including variable tariffs and domestic supply buffers, and investing in dairy value chain infrastructure to reduce post-harvest losses.

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Pan-African Journal of Research and Innovation in Law, Policy and Development Vol. 1 No. 1 1

Autonomy of the Auditor General in Zambia: An Analysis of the Law

The study analysed the legal framework governing the autonomy of the Auditor-General in Zambia and assessed the extent to which the framework supports or constrains institutional independence and operational effectiveness. Using doctrinal legal research, the study examined the Constitution of Zambia, the Public Audit Act, the State Audit Commission Act, the Public Finance Management Act, relevant judicial authorities, international standards, scholarly literature, and institutional reports. The analysis finds that Zambia provides substantial formal safeguards for audit independence, particularly through the constitutional appointment framework, the Auditor-General’s broad audit mandate, and the prohibition against direction or control in the performance of official functions. However, the framework also creates areas of interpretive tension. Article 234 establishes the State Audit Commission (SAC) and gives it oversight functions, while the State Audit Commission Act assigns the Commission functions that include staffing, disciplinary matters, performance monitoring, complaints, and budget review. These provisions do not expressly authorise the Commission to determine audit priorities, conduct audits, alter findings, or control audit reports, but their breadth makes clear statutory boundaries important for preserving operational independence. In addition, section 16 of the Public Audit Act expressly requires the Auditor-General to conduct a specific audit at the President’s request. Although the provision does not expressly permit presidential direction over the conduct or outcome of the audit, its mandatory wording creates a potential tension with the constitutional principle of functional independence. The study concludes that Zambia’s framework provides a strong foundation for autonomy but requires clarification of institutional boundaries, stronger safeguards for financial and administrative independence, and mechanisms that improve follow-up to audit findings.

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Pan-African Journal of Research and Innovation in Business, Finance and Management Vol. 1 No. 1 2026

Essentials of Purchasing in Contemporary Supply Chain Management: A Systematic Review and Conceptual Framework 

This study examines the foundational principles and recent developments in purchasing within contemporary supply chain management. It synthesises classical procurement theory with emerging trends in digital transformation, supply chain resilience, and regulatory compliance. This research employs a systematic literature review of procurement frameworks, following the structured search, screening, and thematic synthesis protocol set out in full in Section 2. The review draws on peer-reviewed studies (2018–2024) in operations and supply chain management, spanning supply chain resilience and procurement digitisation, and develops an integrative conceptual framework showing how purchasing functions connect to overall supply chain performance. The analysis shows that purchasing is now a strategic value-creating function, not just a transactional one. Six key areas are identified: optimising acquisition processes, selecting and evaluating bidders, managing supply chain connections and resilience, integrating finance and controlling costs, handling global sourcing and regulations, and ensuring ethical governance through good-faith contracting. The study also highlights Procurement 4.0 technologies as major drivers of purchasing excellence. This study is conceptual and does not test the framework with data. Future research should use surveys or case studies in different industries to validate the framework. Procurement professionals are encouraged to adopt integrated purchasing frameworks that align financial management, risk control, supplier relationship management, and digital technologies. Regulatory compliance and ethical contracting should be regarded as essential competencies rather than peripheral requirements. This paper advances purchasing theory by integrating research from resilience engineering, financial analysis, regulatory compliance, and digital procurement into a unified model. This model addresses both efficiency and strategic value.

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Pan-African Journal of Research and Innovation in Business, Finance and Management Vol. 1 No. 1 2026

Payment Interoperability and Cross-Border SME Trade in Africa: The Roles of Transaction Efficiency, Regulatory Fragmentation and Transaction Costs: Deconstructing Cross-Border Payment Frictions, PAPSS Dynamics, and Institutional Governance under the AfCFTA

The realization of regional economic integration across emerging markets depends not merely on statutory tariff reductions, but on the operational efficiency of the digital financial rails connecting cross-border enterprises. Within the African Continental Free Trade Area (AfCFTA), small and medium-sized enterprises (SMEs) face persistent financial and institutional friction. While macro-level payment innovations: such as the Pan-African Payment and Settlement System (PAPSS): have established continental financial market infrastructure, international business scholarship lacks firm-level empirical evidence on how payment interoperability translates into actual cross-border commercial engagement. Grounded in Transaction Cost Economics (TCE) and Institutional Theory, this study develops an empirical model explaining how payment interoperability influences cross-border SME transaction intensity and firm trade performance. We conceptualize payment interoperability as an intermediate technological capability that impacts trade performance through the mediating mechanism of transaction efficiency, while regulatory fragmentation acts as a critical institutional moderator. Analyzing a cross-sectional dataset of N=702 SMEs across five key African trade hubs (Ghana, Nigeria, Côte d’Ivoire, Kenya, and South Africa) using Partial Least Squares Structural Equation Modeling (PLS-SEM), the study disentangles technological capabilities from firm-level trade performance. Out-of-sample predictive assessment (PLSpredict) and Gaussian copula diagnostics evaluate structural robust predictions and endogeneity risks. The findings advance digital trade literature by establishing the boundary conditions under which digital financial infrastructure translates into practical firm-level trade performance under AfCFTA.

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Pan-African Journal of Research and Innovation in Medical, Health and Clinical Sciences Vol. 1 No. 1 2026

Routine Childhood Immunization Coverage, Vaccination Dropout, and Predictors of Schedule Completion in Benin City, Nigeria

High initial access to childhood vaccination does not guarantee schedule completion. This study assessed antigen-specific coverage, dropout, and factors associated with completion among children in Benin City, Nigeria. A community-based cross-sectional survey included 620 mother-child pairs selected through two-stage cluster sampling. Vaccination status was determined from records and maternal recall. Coverage and individual-level dropout were estimated, and two forced-entry multivariable logistic regression models examined completion by 12 months and extended-schedule completion by 15 months. Estimates were not adjusted for survey clustering or sampling weights. Coverage was 95.8% (594/620) for bacille Calmette-Guerin and 92.1% (571/620) for pentavalent dose three. Full-schedule coverage by 12 months was 76.8% (476/620). Among 460 children aged 15-23 months, 82.2% (378/460) received measles-containing vaccine dose two and 75.4% (347/460) completed the extended schedule. Dropout was 2.9% (17/587) from pentavalent dose one to dose three and 9.7% (40/414) from measles-containing vaccine dose one to dose two among age-eligible initial-dose recipients. Antenatal-care attendance was associated with higher odds of 12-month completion (adjusted odds ratio [AOR]=4.26, 95% confidence interval [CI] 2.20-8.26) and extended completion (AOR=3.48, 95% CI 1.62-7.49). Income of at least N60,000 was associated with 12-month completion, while Ikpoba-Okha residence was associated with lower extended completion.Completion declined for later doses. The associations support evaluating antenatal counselling, reminder-recall systems, and geographically targeted follow-up in prospective or implementation studies.

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Pan-African Journal of Research and Innovation in Agricultural and Plant Sciences Vol. 1 No. 1 2026

Diversity Indices of Crude Oil Impacted Vegetation

Understanding of diversity indices helps measurable description and vegetation communities’ comparison, laying the ground work for reliable strategies for conservation and management. This study assessed the diversity indices of vegetation in crude oil-impacted plots and an uncontaminated control site in K-Dere community, Gokana Local Government. Using 40 m × 40 m quadrats, plant species composition was recorded in three oil-impacted plots (Plots 1–3) and one control plot. Diversity was evaluated using taxa richness index, Shannon–Wiener index, Simpson’s index, dominance, and Pielou’s evenness. A total of 41 plant taxa from 21 families were recorded across all plots. Taxa richness ranged from 38 (Plots 1 and 2) to 40 (control). Dominance values were consistently low (0.03283–0.04577), indicating no single species monopolised community resources. Simpson’s diversity ranged from 0.9542 (Plot 1) to 0.9672 (Plot 3); the Shannon–Weaver index increased progressively from 3.316 in Plot 1 to 3.54 in Plot 3, with the control recording 3.502. Evenness values (0.7248–0.8836) indicated broadly uniform species representation. These results showed that both contaminated and uncontaminated (control) areas are within a narrow margin, indicating a relatively similar level of species richness and evenness across all sites

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Pan-African Journal of Research and Innovation in Environmental, Earth Sciences and Geosciences Vol. 1 No. 1 2026

Integration of Artificial Intelligence (AI) in Building Performance Optimization.

The integration of Artificial Intelligence in building performance optimization offers strong opportunities for advancing sustainability in tropical regions where high temperatures and humidity present distinct design challenges. Although interest in this field is growing, only a small number of studies focus on the practical use of AI driven parametric design tools in tropical environments. This study examines how AI algorithms, working with parametric simulation platforms such as Grasshopper and Ladybug, can optimise daylighting, thermal comfort, and energy performance in naturally ventilated buildings in Nigeria. Using machine learning models such as Artificial Neural Networks and Support Vector Machines, several building configurations were assessed across multiple performance indicators. The results show that AI based optimisation improved daylight autonomy by up to 40 percent, reduced energy consumption by 30 percent, and increased thermal comfort hours by 34 percent when compared with conventional design methods. The study concludes that AI supported parametric workflows offer a strong approach for climate responsive and energy efficient building design in data scarce tropical settings. It recommends wider adoption of AI enhanced design processes, increased investment in professional training, and the development of AI models that are tailored to tropical building conditions.  

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Pan-African Journal of Research and Innovation in Medical, Health and Clinical Sciences Vol. 1 No. 1 2026

Determinant of Cervical Cancer Screening Uptake among Women of Reproductive Age Living with HIV in Akamkpa Local Government Area, Cross River State

Cervical cancer screening is essential for women living with HIV, yet uptake is shaped by personal resources, health beliefs, and service organisation. This study assessed factors associated with cervical cancer screening uptake among women of reproductive age living with HIV in Akamkpa LGA, Cross River State. A health facility based cross sectional study was conducted among 340 women receiving HIV care in five facilities. Data were collected using a structured interviewer administered questionnaire and a clinical record extraction form. Frequencies and percentages described screening behaviours, while crude odds ratios and 95% confidence intervals were recalculated from verified cross tabulations. Screening uptake was 43.5%. Lack of awareness and financial constraints were the leading reported barriers. Higher screening odds were observed among women aged 25 to 34 years, currently married women, women with secondary or tertiary education, women with higher monthly income, and those diagnosed with HIV for five to ten years. Good knowledge was associated with fourfold higher screening odds (COR = 4.11; 95% CI [2.50, 6.77]), while positive attitude was also significant (COR = 1.94; 95% CI [1.19, 3.18]). Provider referral increased the odds more than threefold, and being directly offered screening during an HIV clinic visit showed the strongest association (COR = 14.58; 95% CI [8.42, 25.25]). The findings indicate that screening depends on both readiness and service opportunity. Routine counselling, provider initiated offers, affordable screening, and integrated HIV and cervical cancer services are required.

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Pan-African Journal of Research and Innovation in Business, Finance and Management Vol. 1 No. 1 2026

Determinants of Milk and Milk Products Import in Eswatini: Time Series Analysis (1980-2023)

Eswatini continues to face persistent dairy import dependency despite high per capita consumption and successive government policy commitments to achieve self-sufficiency. This study investigated the determinants of milk import substitution in Eswatini from 1981 to 2023 using annual time series data sourced from the Eswatini Dairy Board (EDB), the World Bank, and the International Monetary Fund (IMF). The milk import substitution ratio (IR) was constructed using the absolute measure of import substitution, calculated as the difference between import availability ratios over time: R = (M₀/S₀) - (M₁/S₁), where M represents imports and S represents total supply (domestic production plus imports). A positive IR indicates that domestic production is displacing imports (import substitution is occurring), while a negative IR indicates that imports are growing faster than domestic production's ability to displace them (import dependency is increasing). A higher IR value indicates greater import substitution, with positive values signifying successful substitution. The analysis employed the Augmented Dickey-Fuller (ADF) unit root test and the Autoregressive Distributed Lag (ARDL) Bounds Testing approach with an Error Correction Model (ECM). ADF tests confirmed mixed integration orders (I(0) and I(1)), validating the ARDL framework. The Bounds test established a robust long-run relationship at the 5% significance level (F-statistic = 61.31627; 5% upper bound = 4.923). The estimated Error Correction Term (ECT = -1.1238) confirmed oscillatory but stable convergence to long-run equilibrium. In the long run, a 1% increase in domestic milk production (INDM) improved the import substitution ratio by 0.00196 points, while a 1% increase in milk imports (INMI) reduced the substitution ratio by 0.00198 points. The structural break in 1995 showed a negative coefficient (-0.0748), suggesting a possible decline in the substitution ratio, though this was not statistically significant (p = 0.2713). Similarly, the negative time trend (-0.0006 points per year) was not statistically significant (p = 0.7398). Real GDP, population growth rate, and the real effective exchange rate were not statistically significant long-run determinants at the 5% level. In the short run, changes in population growth had significant effects: current changes negatively influenced the ratio, while lagged changes positively influenced it. The overall Import Substitution Ratio averaged approximately -0.75, confirming persistent structural dependency. This is the first study to construct and analyze the milk import substitution ratio in Eswatini over the 1981-2023 period, providing a unique contribution to understanding dairy policy effectiveness and import substitution dynamics. Recommendations include strengthening domestic production capacity through targeted subsidies and veterinary extension services, implementing strategic import management mechanisms including variable tariffs and domestic supply buffers, and investing in dairy value chain infrastructure to reduce post-harvest losses.

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Pan-African Journal of Research and Innovation in Computer Science and Mathematical Theory Vol. 1 No. 1 2026

A Hybrid CNN-RSA Framework for Secure PDF Document Classification and Storage in Distributed Cloud Environments

The increasing adoption of cloud computing has improved the storage, accessibility, and management of digital documents. However, the security of Portable Document Format (PDF) files remains a major concern because of unauthorized access, data leakage, malicious document attacks, and privacy violations. Traditional cloud security mechanisms often focus either on encryption or on document classification, leaving a gap in providing an integrated solution that supports both intelligent document analysis and secure storage. This paper presents a Hybrid PDF Security Trainer Framework that integrates Term Frequency–Inverse Document Frequency (TF-IDF), Convolutional Neural Networks (CNN), and Rivest–Shamir–Adleman (RSA) encryption to provide a comprehensive security mechanism for PDF documents stored in distributed cloud environments. The proposed framework first extracts text from uploaded PDF documents and then converts the text into numerical feature vectors using TF-IDF. The generated features are processed by a CNN model that classifies documents according to their security characteristics and detects potentially sensitive or malicious content. Based on the classification outcome, an appropriate security policy is selected and RSA encryption is applied before the document is stored in a distributed cloud infrastructure that supports secure access and controlled retrieval. The framework combines intelligent machine learning with cryptographic protection to improve document confidentiality while maintaining efficient storage and retrieval. The integrated architecture enhances confidentiality, reduces unauthorized access, and provides a practical solution for secure document management in modern cloud computing environments.

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Pan-African Journal of Research and Innovation in Engineering and Technology Vol. 1 No. 1 2026

Effect of Partial Replacement of Crushed Granite with Local Coarse Aggregate in Concrete

This study investigated the effect of partially replacing crushed granite with locally available sandstone (locally referred to as “wili-wili stone”) on selected fresh and hardened properties of concrete. The experimental programme was conducted at the Civil Engineering Laboratory of Nnamdi Azikiwe University, Awka, using Ordinary Portland Limestone Cement, sharp sand, crushed granite and local sandstone aggregate. Granite was replaced with sandstone at 0%, 10%, 20% and 30% levels. Concrete mixtures of 1:1:2, 1:2:4, 1:3:6 and 1:4:8 were investigated. Slump, 28-day compressive strength and aggregate water absorption were determined. The results showed a consistent reduction in slump as the sandstone content increased. For the 1:1:2 mixture, slump decreased from 76 mm at 0% replacement to 56 mm at 30% replacement; corresponding reductions were observed for the other mix proportions. The water absorption of sandstone was 1.76%, compared with 1.13% for granite, indicating greater water demand associated with the local aggregate. The compressive strength response depended strongly on the mix proportion. In the 1:2:4 mixture, the mean 28-day strength increased from 7.32 N/mm² for the control to 9.33 N/mm² at 10% replacement, but declined at 20% and subsequently recovered to 8.41 N/mm² at 30%. In the richer 1:1:2 mixture, strength increased progressively to 12.45 N/mm² at 30% replacement. Conversely, the 1:3:6 mixture remained below the control at all replacement levels, while the 1:4:8 mixture showed an irregular response. These results demonstrate that a single universal optimum replacement percentage cannot represent the suitability of local sandstone; performance is strongly dependent on mixture proportion and aggregate moisture condition. For the conventional 1:2:4 mix investigated, 10% replacement provided the highest measured 28-day compressive strength and a relatively small loss of workability. The study concludes that properly characterized local sandstone can serve as a partial coarse-aggregate replacement, provided its higher absorption is considered during mix proportioning and quality control.

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Pan-African Journal of Research and Innovation in Business, Finance and Management Vol. 1 No. 1 2026

Financial Instability Red Flag and Fraud Risk Detection: The Moderating Role of Board Independence in Listed Financial Institutions in Nigeria 

The persistence of fraudulent financial reporting among Nigerian financial institutions, despite regulatory reforms and corporate governance codes, motivates this study, which examines the effect of the Financial Instability Red Flag on fraud risk detection, the direct effect of board independence on fraud risk detection, and the moderating role of board independence on the financial instability fraud risk detection relationship. Financial instability, an accounting red flag recognised under ISA 240 Paragraph A35, reflects deteriorating financial condition arising from excessive debt obligations and is proxied by total liabilities divided by total assets. The study adopted a quantitative approach and an ex post facto research design, anchored on positivist philosophy, using panel data drawn from the audited annual reports of 42 listed Nigerian financial institutions from 2014 to 2024 (462 firm-year observations). Fraud risk detection was measured with the Dechow F-Score model, while board independence was measured as the proportion of independent directors to total board size. Data were analysed using descriptive statistics, correlation analysis, and panel regression, with firm size as a control variable. Findings show that Financial Instability Red Flag had a negative and statistically insignificant effect on fraud risk detection under the direct-effect model, but became positive and statistically significant once board independence and interaction terms were introduced. Board independence had a negative and statistically significant direct effect on fraud risk detection when first introduced as a moderator, but this effect became negative and statistically insignificant once the interaction terms were added; board independence also did not significantly moderate the financial instability-fraud risk detection relationship. The study concludes that financial instability is a context-dependent red flag whose fraud-signalling strength is sensitive to governance-model specification, while board independence, though theoretically expected to strengthen monitoring, has not translated into a consistent, statistically significant direct or moderating safeguard within Nigerian financial institutions. Regulators and boards should therefore strengthen financial stability monitoring and empower independent directors with stronger risk oversight mandates.

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