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- The Faculty of Agricultural Sciences, Focuses on research and publications related to crop science, animal science, soil science, agricultural economics, and extension services that promote sustainable food production and rural development.
Recent Submissions
Reformulated Adomian Decomposition Method for the Approximation of Special Linear and Nonlinear Two-Point Boundary Value Problems
(SCIENCE FORUM (JOURNAL OF PURE AND APPLIED SCIENCES), 2021-08-12) Joshua Sunday1; Joshua A. Kwanamu; Nathaniel M. Kamoh; Yusuf Skwame
Boundary value problems (BVPs) of higher order have been found to be potentially applicable in hydro-magnetic stability, hydrodynamics, chemical reactions, heat power transmission theory, and the boundary layer theory in fluid mechanics. In this research, a method which decomposes the solution into the series which converges rapidly shall be derived. We shall call this method the reformulated Adomian decomposition method (RADM). This method is an improvement over Aadomian decomposition method (ADM). The RADM is derived in such a way that on imposing the boundary conditions on the approximant, a system of equations is obtained which in turn is solved for the undetermined constants. On substituting the resulting constants into the solution function, we obtain a series solution to the problem. The RADM is applied on some linear and nonlinear two-point BVPs and from the results obtained, the method is said to be computationally reliable.
Physicochemical and Bacteriological Evaluation of Sachet Water Sold in Minna Metropolis, Niger State, Nigeria
(International Journal of Advanced Chemistry Research, 2023) Ibrahim Mohammed; Muhammad Taoheed Bisiriyu; Rasaq Bolakale Salau; Asmau Omowumi Suleiman; Hamidu Abdullahi; Cyril Ogbiko; Gungshik John Rople; Rabiat Lawal Abdullah
Physical assessment of the package labels (product name, manufacturing address, National Agency for Food and Drug Administration (NAFDAC) registration number, manufacturing and expiry date and batch number on the labeling) and quality evaluation of the physicochemical and bacteriological properties of the water samples collected was assess and analyzed in relation to level of compliance with package water recommended standards. Four (4) clusters were considered in which three samples were collected from vendors in each cluster making up a total of twelve (12) samples. Physical examinations revealed 100% compliance to standards in terms of the product name, manufacturing address and NAFDAC registration number but zero percent compliance for manufacturing and expiry dates but only about 17% of the samples had a batch number on the labeling. The physiochemical parameters show appreciable compliance to standards with an ambient temperature of 28 °C, pH range of 6.5 to 8.5 and conductivity values ranged between 104.67 - 225.67 μS/cm still lower compared to the maximum range of 1000 μS/cm by Nigerian Industrial Standard (NIS). Samples turbidity results recorded zero value for SWA1, SWB2, SWC3, SWE5, SWG5, SWH6, SWI7, SWJ8 and SWK9 except for sample SWD10, SWF11, and SWL12 with a turbidity of 2.00, 2.00 and 3.00 NTU, respectively and were still within NIS/WHO limit of 5 NTU. Total dissolved solids (TDS) values ranged from 70.20 - 171.67 mg/L but still within the threshold limit of 500 mg/L recommended by NIS. The bacteriological parameters gave total bacterial count (TBC) ranged between 1 - 16.50 cfu/cm3 accounting for SWB2=2.00, SWC3=1.50, SWD4=2.00, SWE5=1.00, SWF6=5.50, SWG7=4.00, SWH8=5.00, SWI9=13.00, SWJ10=8.50, SWK11=16.50,and SWL12=16.00 cfu/cm3 above the WHO limit of zero cfu/cm3 except SWA with 0.00 cfu/cm3 in conformity with the standard limit while TCC ranged from 1-1.50 cfu/cm3 for SWC3=1.50, SWD4=1.00, SWE5=1.00, SWG7=1.00, SWH8=1.50 and SWK11=1.50 cfu/cm3 which is all above the WHO limit of 0.00 cfu/cm3except six samples (SWA1, SWB2, SWF6, SWI9, SWJ10 and SWL12) having 0.00 cfu/cm3 accounting for 50% samples compliance with the tolerance limit. The concentration of Pb, Zn, Fe, and Cr in the samples was below the WHO/SON tolerant level of 0.01 mg/L for Pb, 5 mg/L for Zn, 0.3 mg/L for Fe and 0.05 mg/L for Cr except for samples SWF6, SWG7, and SWJ10 with Pb concentration of 0.04, 0.032, and 0.050 mg/L respectively, above permissible limits of WHO/SON. The corrosion of pipes used in the water processing may account for the Pb concentration hence, regular assessment of the sachet water products should be ensured by the regulating agencies to promote both water and health safety.
RFLP- Based Gel Electrophoregram of DNA Primers for Acha (Fonio) Characterisation From Nigeria
(International Journal of Innovative Approaches in Agricultural Research, 2019-12-19) Nyam D.D.; Kwon-Ndung E.H.; Wuyep A. P.
The evaluation of the molecular diversity of Acha (Digitaria sp.) was carried out using Microsatelite primer combinations specially designed forDigitaria exilis. The amplifiedmicrosatellite fragments were also used in the other species of Digitaria namely; Digitaria barbinodis and Digitaria iburua. DNA extraction was carried and Agarose Gel Electrophoresis was conducted on the restricted amplified DNA extracts using microsatellite primers developed for Digitaria exilis. RFLPs clearly suggest a distinct separation of the three species of Acha at the molecular level (D. iburua, D. exilis and D. barbinodis) demonstrating the extent of their genetic differences at the DNA level.
On Cyclic Codes of Odd Lengths from the Stable Variety of Regular Cayley Graphs
(Mathematics and Statistics, 2018) Chun P.B; Ibrahim A.A; Kamoh N.M
The use of the adjacency matrix of a graph as a generator matrix for some classes of binary codes had been reported and studied. This paper concerns the utilization of the stable variety of Cayley regular graphs of odd order for efficient interconnection networks as studied, in the area of Codes Generation and Analysis. The Use of some succession scheme in the construction of a stable variety of the Cayley regular graph had been considered. We shall enumerate the adjacency matrices of the regular Cayley graphs so constructed which are of odd order as in [1]. Next, we would show that the Matrices are cyclic and can be used in the generation of cyclic codes of odd lengths.
Uranium Concentration in Groundwater and Assessment of Radiation Doses Within Naraguta Sheet 168, North Central Nigeria
(Journal of Environment and Earth Science, 2018) Abiye Olatunji Solomon; Paul Olusegun Ogunleye; Raymond Ishaya Daspan; Nestor Monday Chagok; Igah Sabastine Otebe
Water samples collected from 60 wells located within Naraguta Sheet 168 in North Central Nigeria were analyzed by inductively coupled plasma mass spectrometry (ICP-MS) for uranium concentrations and other selected trace elements. This is aimed at assessing the radiation dose arising from intake of uranium through drinking water pathway for different age groups in the area. Results obtained show that uranium concentration in groundwater within the study area is generally within the acceptable reference level of 0.1mSv/y except in some places around Bukuru, Rayfield and Bishichi areas underlain mainly by the Jos-Bukuru Younger Granite Complex. The uranium values in groundwater within Naraguta Sheet 168 vary from 0.02-168.7 ppb, representing an activity concentration of 0.516-4.353 mBq/l. Radiation dose due to intake of uranium through drinking water pathway from the area is calculated to be 0.045-378.098 (μSv/y) among infants of 0-6 months, 0.051-432.112 (μSv/y) among infants of 7-12 months, 0.029-247.829 (μSv/y) among children between 1-3
years of age, and 0.026-216.056 (μSv/y) for children between 4-8 years. For 9-13 years old male children, it is 0.031-259.267 (μSv/y), while for the female children of the same age range, it is 0.031-259.267 (μSv/y). Male teenagers of between 14-18 years receives 0.042-351.250 (μSv/y) and female in the same age category receives 0.042-244.811 (μSv/y). Among the adult males older than 18 years, the radiation dose is 0.031-264.710 (μSv/y) and among females of 18 years and above, it is 0.023-193.021 (μSv/y). With effective dose due to uranium in water exceeding the reference level of 0.1mSv/y in some localities, it is therefore necessary to always carryout radiological investigations alongside analysis of major anions and cations present in the groundwater for safety reasons.