oalib

Publish in OALib Journal

ISSN: 2333-9721

APC: Only $99

Submit

Any time

2019 ( 531 )

2018 ( 817 )

2017 ( 753 )

2016 ( 1105 )

Custom range...

Search Results: 1 - 10 of 461723 matches for " A. Zubairu "
All listed articles are free for downloading (OA Articles)
Page 1 /461723
Display every page Item
The Spread of Infectious Disease on Network Using Neutrosophic Algebraic Structure  [PDF]
A. Zubairu, A. A. Ibrahim
Open Journal of Discrete Mathematics (OJDM) , 2017, DOI: 10.4236/ojdm.2017.72009
Abstract: Network theory and its associated techniques has tremendous impact in various discipline and research, from computer, engineering, architecture, humanities, social science to system biology. However in recent years epidemiology can be said to utilizes these potentials of network theory more than any other discipline. Graph which has been considered as the processor in network theory has a close relationship with epidemiology that dated as far back as early 1900 [1]. This is because the earliest models of infectious disease transfer were in a form of compartment which defines a graph even though adequate knowledge of mathematical computation and mechanistic behavior is scarce. This paper introduces a new type of disease propagation on network utilizing the potentials of neutrosophic algebraic group structures and graph theory.
Adoption of Nerica 1 Rice Variety among Farmers in Jalingo Local Government Area of Taraba State, Nigeria
Bzugu, P. M.,Mustapha, S. B.,Zubairu, E. A.
Journal of Environmental Issues and Agriculture in Developing Countries , 2010,
Abstract: The study examined the adoption of NERICA 1 Rice variety among farmers in Jalingo Local Government Area of Taraba State, Nigeria. Interview schedule were administered to 128 respondents who were randomly selected from the four wards that were purposively selected. The data were analysed using descriptive statistics. The study revealed that majority of the respondents were less than 40 years of age, who had less that 3 hectares of farm size. The study shows that the level of adoption of NERICA 1 Rice variety was low. The most important reasons for adoption of the NERICA 1 variety was early maturity as identified by the respondents. The most glaring constraint affecting the adoption of NERICA 1 Rice variety was lack of credit facilities. Policy recommendations include among others provision of inputs (including agricultural credits) at the right time and the encouragement of farmers to form NERICA/Rice variety cooperatives with a view to improving the food insecurity in the study area.
Methylene blue adsorption from glycerol solution onto the acicular habit of α-goethite
S.M.J. Zubairu,A. Uzairu,J.F Iyun,S.E. Abechi
Bulletin of the Chemical Society of Ethiopia , 2011,
Abstract: The mechanism of methylene blue adsorption onto the surface of synthetic acicular habit of α-goethite from glycerol solution has been studied through batch experiment at 25, 30 and 35 0C in a glass cell of minimal dead volume. To describe the adsorption results, an attempt was made to fit the data to the Langmuir, Freundlich, Temkin and Dubinin equations. It was evident that adsorption capacity increased rapidly from 4.7 to 27.2 x 10-5 M for the equilibrium concentration of 0.13 to 1.90 x 10-5 M at 25 0C to a maximum of 33.1x 10-5 M for 30 0C for equilibrium concentration of 2.74 M. Drop in the height of the plateau was observed and remained unchanged for 35 0C, and a maximum appeared in each isotherm before plateau. The adsorption process was found to be exothermic with an estimated mean entropy change of 23.84 kJ/mol. Also, an initial estimation of the surface acidity was made and it has been suggested that the surface of this mineral is heterogeneous if the location of these sites are presumed to be the adsorption sites identified as Lewis and Bronsted acid types. Furthermore, thermodynamic parameters H, G and S for the adsorption were determined from the data and some features of the adsorption mechanism were enumerated on the basis of reaction scheme that incorporates simple adsorption phase exchange at the glycerol/α-FeOOH interface.
Prevalence of hookworm infection among patients attending Aminu Kano Teaching Hospital, Kano, Nigeria
S Ibrahim, ML Zubairu
Bayero Journal of Pure and Applied Sciences , 2010,
Abstract: Prevalence rate of hookworm infection among patients attending Aminu Kano Teaching Hospital (AKTH) Kano, Nigeria was determined between September and November 2009. The procedure involved collecting and processing of stool samples in accordance with standard parasitological techniques. Out of 577 samples collected and processed, 50 (8.7%) were positive for hookworm infection with a peak in those subjects in the age group 21– 30 years (3.3%), followed by 51– 60 years (1.6%) and then 31 – 40 years (1.3%). No case of infection was detected among patients of 71 years and above. This study showed that the prevalence of infection was higher among females (5.7%) than males (3.0%), and significant difference exists in the rate of infection between the two sexes at P = 0.05. The above prevalence rate of infection could become higher in years to come and therefore become more threatening due to increase in birth rate and other socio-economic factors. Consequently, it is suggested that laying emphasis on personal and community hygiene can be achieved through promoting health education in addition to early diagnosis and treatment of the infection will go a long way in checking the spread of this infection in our community especially as it causes maternal death.
Methylene blue adsorption from glycerol solution onto the acicular habit of α-goethite
S.M.J. Zubairu, A. Uzairu, J.F Iyun, S.E. Abechi, J.O. Okunola
Bulletin of the Chemical Society of Ethiopia , 2011,
Abstract: The mechanism of methylene blue adsorption onto the surface of synthetic acicular habit of α-goethite from glycerol solution has been studied through batch experiment at 25, 30 and 35 0C in a glass cell of minimal dead volume. To describe the adsorption results, an attempt was made to fit the data to the Langmuir, Freundlich, Temkin and Dubinin equations. It was evident that adsorption capacity increased rapidly from 4.7 to 27.2 x 10-5 M for the equilibrium concentration of 0.13 to 1.90 x 10-5 M at 25 oC to a maximum of 33.1 x 10-5 M for 30 oC for equilibrium concentration of 2.74 M. Drop in the height of the plateau was observed and remained unchanged for 35 oC, and a maximum appeared in each isotherm before plateau. The adsorption process was found to be exothermic with an estimated mean entropy change of 23.84 kJ/mol. Also, an initial estimation of the surface acidity was made and it has been suggested that the surface of this mineral is heterogeneous if the location of these sites are presumed to be the adsorption sites identified as Lewis and Bronsted acid types. Furthermore, thermodynamic parameters H, G and S for the adsorption were determined from the data and some features of the adsorption mechanism were enumerated on the basis of reaction scheme that incorporates simple adsorption phase exchange at the glycerol/α-FeOOH interface. KEY WORDS: Surface interface, Crystal habit, Heterogeneity, Micropore volume Bull. Chem. Soc. Ethiop. 2011, 25(1), 25-35.
Appraisal of the Performance of Contingency Cost Provision for Building Projects in Nigeria
MM Musa, IK Zubairu, K Bala
ATBU Journal of Environmental Technology , 2011,
Abstract: The paper appraised performance of contingency allowance in addressing projects’ cost risk. To achieve this aim, impact of contingency provision in some selected building projects were evaluated. Data for the study was collected by means of checklist from 40 completed projects’ files. Furthermore, 100 questionnaires on project cost contingency were randomly distributed to quantity Surveyors out of whom 67 completed responses were returned. The results showed that there is significant difference between projects with and without contingency with respect to the accuracy of cost estimates. The study revealed that although the inclusion of contingency allowance reduces the incidence of project cost overrun, majority of the projects under study (55%) had cost overrun. It was also found that the projects exceeded their initial estimate by an average value of 5.07% where contingency was included and by an average value of 9.52% where contingency was not included. The study showed that there is a lack of application of quantitative risks analysis in the determination of contingency fund. Therefore, to improve the accuracy of cost contingency allowance, application of quantitative risks analysis in its determination has been recommended.
An Optimal Assignment Schedule of Staff-Subject Allocation  [PDF]
Suleiman Kabiru, Bello Malam Saidu, Abdullahi Zubairu Abdul, Uba Ahmad Ali
Journal of Mathematical Finance (JMF) , 2017, DOI: 10.4236/jmf.2017.74042
Abstract: This research is an optimal allocation of assignment schedule in science subjects. Two methods of assignment problem were used, namely; the Hungarian method (Algorithm) and Linear interactive & discrete optimization (LINGO) technique. The results from both methods yielded the same optimal outcome. It reveals that the total minimum opportunity that will maximize the educational quality is 84 and the total maximum effectiveness that will maximize the educational quality is 416. Therefore, we recommend to the school management to adopt these methods in staff-subject allocation schedule to science, management and arts subjects for optimal benefits. Accordingly, the government should also apply the findings of this research to other schools.
Gender Participation in Economic Activities and Decision Making in Keffi Area of Nigeria
Hassan Ishaq Ibrahim,Napoleon Danbeki Saingbe,Zubairu Ajiya Abdulkadir
Asian Journal of Agriculture and Rural Development , 2012,
Abstract: The study assessed gender participation and decision making role in economicactivities using data collected from 120 respondents. The results revealed thatfemale participation was frequent in crop post-harvest activities and poultrymanagement while male participation was frequent in crop pre-harvest operationsonly. Female respondents participated occasionally in home gardening, goatrearing, hair dressing and food processing. Educational level, years of experience,personal income and credit obtained significantly influenced the level of genderparticipation in economic activities. The Males always made decisions on selectionof crop variety, spending money, saving money, buying of necessities, and children's education, while females always made decision on types of food forhome consumption only. Age and income of respondents were the significantfactors that influenced the level of gender involvement in decision making.Provision of credit facilities, sensitization on the importance of womeninvolvement in decision making and mobilization of farmers to form co-operativesocieties are necessary impetus for improving women participation in economicactivities and decision making.
Assessment of Congo Red-induced Liver Damage By Selected Serum Transaminase Levels
F.O. Obi,H.C.C. Maduka,I. Zubairu
Journal of Medical Sciences , 2003,
Abstract: The activities of L alanine amino transferase and L aspartate amino transferase in rabbit serum were assayed in the presence and absence of graded doses of congo red administered i.p. Blood was collected for a period of seven days from three groups of rabbits administered with 45 mg kg-1 body wt., 67.5 mg kg-1 body wt body and 90.0 mg kg 1 body wt., respectively and used for enzyme analysis. The result obtained showed that the two enzyme activities were inhibited significantly (P< 0.05) and the degree of inhibitions were dose-dependent with respect to the control group. Dose dependent inhibition of Congo red on the two transanminases was substantiated by varying percentage decreases of the enzyme activities as 37, 58.7 and 60.2% for the groups 1, 2 and 3, respectively for aspartate amino transferase. The same pattern of inhibition was observed for alanine amino transferase suggesting that both enzymes may be inhibited by similar mechanism.
A Comparative Investigation of Lead Sulfate and Lead Oxide Sulfate Study of Morphology and Thermal Decomposition  [PDF]
S. A. A. Sajadi
American Journal of Analytical Chemistry (AJAC) , 2011, DOI: 10.4236/ajac.2011.22024
Abstract: The compound lead oxide sulfate PbSO4.PbO was prepared in our laboratory. The Thermal behavior of PbSO4 was studied using techniques of Thermogravimetry under air atmosphere from 25 to 1200°C. The identity of both compounds was confirmed by XRD technique. Results obtained using both techniques support same decomposition stages for this compound. The electron microscopic investigations are made by SEM and TEM. The compound is characterized by XRD and the purity was determined by analytical Methods. Also a series of thermogravimetric analysis is made and the ideal condition is determined to convert this compound to pure lead oxide.
Page 1 /461723
Display every page Item


Home
Copyright © 2008-2017 Open Access Library. All rights reserved.