A Study of Natural Radioactivity and Gamma Radiation Hazard in Tobacco Leaves and Cigarettes in Oyo State, Nigeria F. C. Akinyose, P.Tchokossa, M. M. Orosun, S. O. Oluyide, O. Olatunji, and G. Martins (pp. 147-157) Abstract A study of natural …
Morphological Description of Subtidal Sponges (Porifera: Demospongiae) Inhabiting Preselected Sites in Talim Bay, Lian, Batangas, Philippines J.P.C. Tan, F.L.G. Zuniega, W.R. Licuanan, and F.G. Claveria (pp. 112-134) Abstract The study presents findings on the survey of sponges inhabiting nine preselected …
Impact of Cypermethrin and Chlorpyrifos on Microbial Activity and Biomass in a Nigerian Soil O.O. Adebisi, D.O. Adetitun, and A.B. Olayemi (pp. 97-111) Abstract The impacts of a synthetic pyrethroid—cypermethrin—and organophosphate insecticide—chlorpyrifos—on soil bacterial, fungal, and pseudomonad populations; basal and …
MULTISTATIONARITY IN EARTH’S PRE-INDUSTRIAL CARBON CYCLE MODELS N.T. Fortun, A.R. Lao, L.F. Razon, and E.R. Mendoza (pp. 81-96) Abstract Chemical reaction networks (CRNs) provide a language for representing systems of interacting entities. In this paper, the pre-industrial carbon cycle models …
Manganese–Ketopinic Acid–Derived Catalyst for Aldol Condensation Reactions Y. Hassan, R. Klein, and P. T. Kaye (pp. 68-74) Abstract Aldol condensation reactions of benzaldehyde with various aliphatic ketones was catalyzed by a new manganese–ketopinic acid–derived complex to furnish products with excellent …
Bound-State Solutions of the Schrödinger Equation with Woods–Saxon Plus Attractive Inversely Quadratic Potential via Parametric Nikiforov–Uvarov Method B. I. Ita, N. Nzeata-Ibe, T. O. Magu, and L. Hitler (pp. 58-67) Abstract We study the bound-state solutions of the Schrödinger equation …

