Browsing by Author "Yusuf, S. I."

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Effects of Relaxation Times from Bloch Equations on Age-Related Change in White and Grey Matter
(University of Lagos, Nigeria, 2024-02-20) Yusuf, S. I.; D. O. Olaoye; M. O. Dada; A. Saba; Khadeejah James Audu; J. A. Ibrahim; A. O. Jatto
This research work presented the analytical method of using T1 and T2 relaxation rates of white matter and grey matter to distinguish the passage of time on human organs. A time dependent model equation evolved from the Bloch Nuclear Magnetic Resonance equation was solved under the influence of the radio frequency magnetic field [rfB1(x, t) ̸= 0] and in the absence of radio frequency magnetic field [rfB1(x, t) = 0]. The general solution was considered in three cases. Analysis of the solutions obtained revealed that the rate of decrease of the white matter was faster than that of the grey matter. Between 100 and 400 seconds the difference is more noticeable.
Yusuf, S. I., Abdulsalam T.O., Audu, K. J., Jatto, A. O. and Ibrahim J. A (2022). Investigation of Dispersal Rate of Curry and Thyme. Journal of Science, Technology, Mathematics and Education, 18(3), 223-229.
(Federal University of Technology, Minna, Nigeria, 2022-09-22) Yusuf, S. I.; Abdulsalam T.O.; Khadeejah James Audu; Jatto, A. O.; Ibrahim J.
This is a study of the rate of dispersal of curry and thyme in a medium using the coefficient of diffusion of curry leaves and thyme leaves. The study was carried out by solving the diffusion equation using the method of separation of variables with appropriate boundary conditions and the coefficient of diffusion applied for curry and thyme. The result shows that curry leaves diffuse faster than thyme leaves under the same conditions. The research establishes why nutritionists and cooks would choose curry ahead of thyme when considering appropriate spices for cooking in order to attract attention.