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Aerosol loading, hotspot contributions, and climatic interactions across West African climate zones and adjacent regions of Chad and Cameroon
(Elsevier, 2026) Sanyaolu, Modupe
This study evaluates aerosol concentration variations (ACV) and their associations with climatic parameters across five West African zones and Central Africa, using 16 years (2008–2023) of satellite data from NASA’s Giovanni platform (MODIS, MERRA-2, AIRS, GPCPMON, GLDAS, and MISR). Central Africa were included because of their geographical continuity with the West Africa. Aerosol metrics (Aerosol Optical Depth [AOD], fine Particulate Matter [PM2.5], Black Carbon [BC], Organic Carbon [OC]) and climatic variables were analyzed using correlation heatmaps, scatter plots, and multiple linear regression. Results show a strong positive correlation between AOD temperature (up to r = 0.74 in the Sudanian zone) and negative associations with precipitation (-0.67 in Sudanian; -0.63 in Sahara). Seasonal peaks varied by zone: Dust-driven in the arid north (Araouane, Mali: 0.74 in June; Fada N’gourma, Burkina Faso: 0.80 in March) and biomass-burning February-driven in the Sudanian belt (Kano, Nigeria: 1.35 in February), and urban-industrial in the humid south (Lagos, Nigeria: 1.07 in). Chad, Abeche and Moussoro show late dry-season peaks (0.66–0.76), while Cameroon (Douala, Limbe, Buea) exhibits moderate but persistent AOD (∼0.87). A regional maximum occurred in 2015, with zonal annual mean of 0.4412 in the Sahara, 0.4921 in the Sahel, 0.6134 in the Sudanian, 0.5510 in the Guinean, and 0.5847 in the Coastal zones. %RAOD identified dominant hotspots, including Araouane (17.11% in 2018), Fada N’gourma (18.48% in 2020), Kano (16.48% in 2020), and Lagos (17.06% in 2009; 16.66% in 2023). These patterns confirm a north-south aerosol gradient consistent across West Africa and adjacent regions.
D-Ribose-L-Cysteine Mitigates Bisphenol A-Induced Anxiety and Depressive-Like Behaviour in Experimental Mice
(Journal of Complementary and Alternative Medical Research, 0026-04-30) Akinsola Akinyele O
Background: Bisphenol A (BPA) is a widely used industrial chemical with endocrine-disrupting properties, posing significant risks to human health, particularly through its neurotoxic and oxidative stress–inducing effects. Antioxidant-based interventions, such as D-ribose L-cysteine, offer potential in mitigating BPA induced neurotoxicity by enhancing glutathione-mediated cellular defense mechanisms. Aim: This study investigated whether DRLC (D-Ribose-L-Cysteine) alleviates BPA (Bisphenol A)-induced anxiety and depressive-like behaviours in mice. Study Design: A 14-day experimental study was conducted under standard conditions at the Pharmacology Laboratory, Delta State University, Abraka, Nigeria. Methodology: Adult male mice were divided into four groups: control (which received the vehicle 10 ml/kg distilled water), BPA-only (10 mg/kg), BPA (10 mg/kg) with DRLC at 50 mg/kg and BPA (10 mg/kg) with DRLC 100 mg/kg. BPA was administered alternately for 14 days to induce neurobehavioural changes, while DRLC was given orally for 14 days. Behavioural tests included the Light/Dark Box, Elevated Plus Maze, Hole Board Test, Tail Suspension Test, Social Interaction Tests, and Forced Swim. Brain biomarkers for inflammation [Myeloperoxidase (MPO)], oxidative/nitrergic stress [Malonaldehyde (MDA)/Nitric Oxide (NO)], anti-oxidative stress (Super oxide dismutase (SOD), Catalase (CAT), Glutathione peroxidase (GPx), and reduced Glutathione (GSH), and HPA (Hypothalamic Pituitary Adrenal) -axis function were assessed. Results: BPA exposure led to significant anxiety- and depression-like behaviours and disrupted redox balance, shown by elevated NO, MDA, MPO, and ACTH, and reduced SOD, CAT, GPx, and GSH. DRLC treatment reversed these effects, restoring antioxidant levels and Behavioural function. Conclusion: DRLC effectively counters BPA-induced neurobehavioural disturbances in mice by restoring redox homeostasis, highlighting its neuroprotective potential.
Metapragmatic Acts in J.P. Clarks' Wives Revolt
(ASÀ: UNIOSUN Journal of Humanistic and Development Studies, 2025) Ajayi Oluwatosin Mercy
This study explores the metapragmatic acts in J.P. Clark’s Wives’ Revolt; highlighting how conversational dynamics are shaped and reinforced in the play’s thematic preoccupations. It investigates the functions of metapragmatic acts as both a linguistic and sociocultural tool in literary discourse. The research primarily analyses the types, forms, and features of metapragmatic acts in the text, emphasising their communicative functions. A qualitative method of data analysis was employed to investigate the explicit and implicit metapragmatic acts within the conversation. Explicit acts were evident through performative verbs such as summoning, decreeing, questioning, and confronting, as well as self referential expressions, hedges, and contextualisation cues. Implicit acts were realised as deictic references and mood variations (exclamative, interrogative, and declarative). Findings showed that speech act descriptions and talk regulation strategies enhanced interaction and thematic expression. The study concluded that metapragmatic acts in Wives’ Revolt serve as a vehicle for sociocultural critique, establishing language as a tool for power negotiation and social change.
Sub-soil Water and Structural Foundation Study in Ilaje Community School and United Grammar School, Irele, Ondo State, Nigeria
(Journal of Chemical, Mechanical and Engineering Practices, 2025-12-03) Sanyaolu, Modupe
Geotechnical Soil Correlation and Potential Investigation of Trial Pits at Structural Foundation Sites across the Ilaje Community School and United Grammar School, Irele in Ondo State, Nigeria, were conducted. The purpose was to correlate and assess the potential effects of sub-soil water on depth to bedrock, foundation conditions, and possible geological structures within the proposed construction area. The study evaluated the engineering properties of soil samples collected from the site using the Atterberg limit, grain size analysis, and compaction test. The geophysical results revealed five geoelectric layers: topsoil, sandy layer, sandy/sandy clay layer, sandy/sand clay layer, and sand basement layer. Analysis of the Atterberg limit indicated a dominance of inorganic clay-size particles with high plasticity and moisture content. The grain size analysis revealed the presence of well-graded gravelly clay silty sand. The classification of soil types and the compaction values obtained showed significant consistency across soil samples. Four subsurface soil layers were identified in the topsoil (mixture of sand, silt, and clay), coarse sand, clayey sand, and sand. These findings correlated well with the sub-soil investigation. The Geotechnical Trial pit data revealed that the soil condition in both communities generally required deep foundations. However, the foundation conditions of United Grammar School in Irele were more favourable than those in the Ilaje community, based on the computed values from the trial investigation.
Thematic Motifs of Modern Nollywood Films and Nigeria’s Culture Indigenization Agenda
(2026) Adebayo Abidemi Olufemi
This study examines the culture-indigenization agenda of the Nigerian government. This is the mandate of the Ministry of Information and Culture and the National Film and Video Censors Board as checks on cultural productions such as Films. This study is guided by postmodern consciousness. In Nigeria, films and culture are mutually inclusive. Nollywood professionals make their modern films Western because the Nigerian society is inevitably Euro/America-centric. The phenomenon contravenes the current government’s culture-preservation efforts. The government has not achieved its goals on cultural indigenization. The first contravention is the cultural globalization policy of government itself through the UN-UNESCO alliance. Another is the extravagant Western lifestyle of Nigerian public office holders. Also,the mercantilism of film registration leads to doing the bidding of film-makers. The power of digital globalization is immense in irresistibly transporting Euro-American values to Africa. The government should therefore consider a developmental culture civilization through digital globalization for global visibility of the indigenized culture.