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PROXIMATE COMPOSITION AND PHYTOCHEMICAL PROPERTIES OF PARKIA BIGLOBOSA (JACQ.)R. BR. EX DON SEEDS IN DERIVED SAVANNA ECOSYSTEM OF SOUTH-WESTERN NIGERIA
(JABU, 2019) Oyerinde Ajiboye Solomon
This study investigates the proximate composition and phytochemical properties of P. biglobosa seeds collected from three States (Osun, Ondo and Ekiti) in the derived savanna ecosystem of South-Western part of Nigeria. P. biglobosa seed samples were collected from ten trees with sufficient fruits and without visible insect damage or disease symptoms on agroforestry farms in six communities within the study area. The seeds were removed manually and milled into flour for analyses (proximate composition, phytochemical and antioxidant properties) using standard methods. The results revealed that there were no significant differences (p >0.05) in the the protein contents (37.31%-39.84%) of the seeds from the three states. Tannin content of P. biglobosa seeds from Ondo State (5.00g/100g) was significantly higher than those from Osun and Ekiti States. Alkaloid contents from the seeds ranged from (4.44 g/100g-4.90 g/100g) and it was observed that the phytate content of seeds from the states were significantly different. P. biglobosa seeds from Ekiti State were found to possess highest value of total phenol (27.44 g/100g) and total flavonoid (4.27 g/100g) while the sample from Ondo State exhibited highest vitamin C content (62.41 g/100g). The ability of the samples to scavenge DPPH radical was highest in Ondo State sample (78.35%) which may be attributed to the vitamin C content. The result is an indication that further studies should be carried out to investigate the application of seeds of P. biglobosa as an ingredient in functional foods.
African Culture and Globalization: Assessing Regal Excesses and Reverse Rhetoric in Stephen Solanke’s Alaafin Aole Arogangan
(2026) Adebayo Abidemi Olufemi
Abstract This paper explores the toxic Yoruba regal culture in the context of globalization as the playwright records in the play Alaafin Aole Arogangan. This is with a view to aligning the Yoruba regal culture with global cultural best practices. Global best practices on culture have spread across the world and societies across the world bear the duty of domesticating such cultural recommendations. The study is qualitative in nature through which ideas or findings in the paper are arrived at through rationalism anchored on available textual data and evidence. The paper is also guided by Oswald Spengler’s Cyclical Theory, whose essence is to modernize the social system for development. In the play, Solanke portrays the regal vices of Alaafin Aole Arogangan of Oyo Kingdom. These include suppression of women’s rights through commodification of women, tendency for killing, regal superiority, as well as institutionalization of dominions. These are vices that are inconsistent with global framework for social system such as gender equality specifically as enshrined in the United Nations’ Sustainable Development Goals 5 – Gender Equality. Solanke revisits the Yoruba regal history in the play through the reigns of Alaafin Aole so as to repudiates regal excesses. Aole commandeers GIRL, requests the head of the Baale of Apomu, is in contention with Ooni, and wages a violent war against Apomu outside his regal jurisdiction, among other atrocities. These are perpetrated under the cloak of reverence and awe of the Yoruba regal figures. Solanke, by these circumstances, suggests that these vices can only be eliminated if Yoruba cultural system is re-instituted in alignment with global best practices.
African Culture and Globalization: Assessing Regal Excesses and Reverse Rhetoric in Stephen Solanke’s Alaafin Aole Arogangan
(2026) Adebayo Abidemi Olufemi
Abstract This paper explores the toxic Yoruba regal culture in the context of globalization as the playwright records in the play Alaafin Aole Arogangan. This is with a view to aligning the Yoruba regal culture with global cultural best practices. Global best practices on culture have spread across the world and societies across the world bear the duty of domesticating such cultural recommendations. The study is qualitative in nature through which ideas or findings in the paper are arrived at through rationalism anchored on available textual data and evidence. The paper is also guided by Oswald Spengler’s Cyclical Theory, whose essence is to modernize the social system for development. In the play, Solanke portrays the regal vices of Alaafin Aole Arogangan of Oyo Kingdom. These include suppression of women’s rights through commodification of women, tendency for killing, regal superiority, as well as institutionalization of dominions. These are vices that are inconsistent with global framework for social system such as gender equality specifically as enshrined in the United Nations’ Sustainable Development Goals 5 – Gender Equality. Solanke revisits the Yoruba regal history in the play through the reigns of Alaafin Aole so as to repudiates regal excesses. Aole commandeers GIRL, requests the head of the Baale of Apomu, is in contention with Ooni, and wages a violent war against Apomu outside his regal jurisdiction, among other atrocities. These are perpetrated under the cloak of reverence and awe of the Yoruba regal figures. Solanke, by these circumstances, suggests that these vices can only be eliminated if Yoruba cultural system is re-instituted in alignment with global best practices.
Effects of Recycled Concrete Dust on the Behaviour of Hot Mix Asphalt
(Journal of Engineering and Technology Management, 2026) Oyedepo Olugbenga Joseph
The increasing demand for sustainable pavement materials has encouraged the utilization of construction and demolition waste in asphalt mixtures. This study investigated the effects of recycled concrete dust (RCD), derived from demolished concrete, on the behaviour and performance of hot mix asphalt (HMA). The RCD was used as a replacement for conventional stone dust filler at proportion of 0%, 25%, 50%, 75%, and 100% using the Marshall mix design method in accordance with relevant ASTM standards. The performance of the mixtures was evaluated in terms of Marshall and volumetric properties, rutting resistance, cracking and moisture damage resistance. Results show that the OBC increased consistently with increasing RCD content due to the lower specific gravity and cementitious nature of RCD, with statistical analysis confirming the significance of this effect. The Marshall and volumetric analysis revealed improved mixture densification up to 75% RCD replacement, as evidenced by higher bulk density, reduced air voids, lower VMA, and increased voids filled with bitumen. Marshall test results indicated that moderate RCD replacement (25–50%) enhanced stability. Flow values decreased with increasing RCD, indicating stiffer mixtures without exceeding specification limits. Rutting resistance, assessed using the Marshall Quotient, improved substantially with increasing RCD content, demonstrating enhanced resistance to permanent deformation. Conversely, indirect tensile strength results showed a reduction in value at higher RCD contents, attributed to increased mixture stiffness. However, moisture susceptibility performance improved with RCD incorporation, with most RCD-modified mixtures exhibiting tensile strength ratio values above 75%, indicating strong resistance to moisture-induced damage. Overall, the findings demonstrate that recycled concrete dust can be effectively used as a sustainable filler in hot mix asphalt. The study supports the adoption of RCD in asphalt pavement construction as a viable approach for enhancing sustainability and reducing environmental impacts.
THEOLOGY OF SCIENCE AND INNOVATION
(Redeemer's University Directorate of General Studies Programme, 2026) Salifu Gabriel