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Search Results: 1 - 10 of 600993 matches for " Ganiyu R. A. "
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Network resources management in a multi-agent system: A simulative approach
Emmanuel A. Olajubu,Ganiyu A. Aderounmu,Emmanuel R. Adagunodo
South African Journal of Science , 2010, DOI: 10.4102/sajs.v106i9/10.322
Abstract: Multi-agent systems (i.e. systems comprising many agents) have been proposed for many Internet and distributed applications. The proposed systems have little or no consideration of the effects of this multi-agent approach on network resources. In this paper, we presented a simulation assessment of the effect of multi-agent systems on network resources. The routing scheme of the agents was formulated based on the travelling salesman problem. Lightweight agent (LWA) controller was modelled using a fuzzy logic toolbox in the MATLAB environment. The performance metrics of bandwidth usage, response time and throughput were used to compare the network resources usage by different groups of LWAs (10 LWAs, 40 LWAs, 100 LWAs, 150 LWAs) during their computational task on the network. Java programs were written for the implementation of lightweight agents in the simulation. The inputs to the system were realised by multiplicative pseudorandom number generation during the simulation. The simulation result analysis was carried out based on the performance metrics stated above for the four groups of agents. Increasing the number of LWAs in a simulated multi-agent system decreased the response time but increased the throughput and the bandwidth usage. All these performance measures should be considered for developing countries with bandwidth shortages, because having too many agents in a multi-agent system could result in bandwidth wastages.
A Comparative Evaluation of Selected Heuristic Solutions of Vehicle Routing Problems in Supply Chain Management
O. O.Okediran,A. E.Okeyinka,O. T.Arulogun,R. A. Ganiyu
Journal of Innovative Research in Engineering and Sciences , 2011,
Abstract: This work involves evaluation of three heuristics which are often used to solve the VRP namely; nearest insertion, nearest neighbour, and tour improvement heuristics using computer execution time, implementation complexity and asymptotic time complexity. The research findings of this work have established that the nearest neighbour heuristic is the most efficient in terms of execution time, program volume and programming effort. The nearest insertion heuristics ranks next while the tour improvement heuristic is the least efficient. Solution to a thirty-seven-node vehicle routing problem implemented using the Nigerian State capitals and Abuja was also obtained.
A Survey of Remote Internet Voting Vulnerabilities
Okediran O. O.,Olabiyisi S. O.,Omidiora E. O.,Ganiyu R. A.
World of Computer Science and Information Technology Journal , 2011,
Abstract: Majority of the conventional voting techniques have been employed over the years in elections. Each of these techniques had attendant short comings. The existing conventional voting systems have been subjected to gross abuse and irregularities. Electronic voting which is emerging as an alternative to these conventional voting systems, though highly promising is not free of flaws; remote internet voting systems still suffer from many security problems which rely on the clients, the servers, and the network connections. Denial-of service attacks and viruses still belong to the most challenging security issues. In this paper we discuss the security issues associated with remote internet voting. In particular, we examine the feasibility of running national elections over the Internet. The focus of this paper is on the limitations of the current deployed infrastructure in terms of the security of the hosts and the Internet itself. We conclude that without appropriate security measures, internet based elections can be a challenge.
Fetus in Fetu: A Rare Presentation in an Adult Female
Ganiyu A. Rahman
Oman Medical Journal , 2011,
Extent of Surgery for Differentiated Thyroid Cancer: Recommended Guideline
Ganiyu A. Rahman
Oman Medical Journal , 2011,
Levels of Immunoglobulin Classes Are Not Associated with Severity of HIV Infection in Nigerian Patients  [PDF]
Oluwaseun O. Akinpelu, Yetunde A. Aken'Ova, O. Ganiyu Arinola
World Journal of AIDS (WJA) , 2012, DOI: 10.4236/wja.2012.23030
Abstract: The serum concentrations of immunoglobulin G (IgG), immunoglobulin A (IgA), immunoglobulin M (IgM), total protein and albumin were measured in 35 Human Immunodeficiency Virus—positive, HAART (highly active antiretroviral therapy) na?ve subjects attending the PEPFAR (President's Emergency Plan for AIDS relief) clinic, University College Hospital, Ibadan and in 30 apparently healthy control subjects to assess the relationship between serum protein, immunoglobulin concentrations and laboratory indices of HIV disease (CD4 cell counts and viral load). Serum IgG (1008.6 ± 530.7 mg/dl), IgA (170.4 ± 69 mg/dl) and total protein (9.9 ± 1.7 g/dl) levels were higher among HIV positive subjects compared with mean values in healthy subjects (549.8 ± 193.8 mg/dl, 106.8 ± 26.4 mg/dl and 7.8 ± 0.5 g/dl respectively). The median serum IgM concentration (131mg/dl) was significantly higher in HIV positive subjects compared with 35 mg/dl in healthy controls (p < 0.001). Mean serum albumin concentration was significantly lower among HIV positive subjects (3.7 ± 0.7 g/dl), compared with 4.3 ± 0.3 g/dl in healthy subjects (p < 0.001). There were no significant differences observed in the levels of the immunoglobulin classes when HIV subjects with CD4 counts of <200 cell/μL were compared with subjects with CD4 counts > 200 cells/μL. There was also no statistically significant correlation observed between viral load and serum immunoglobulin levels.
Buffer Occupancy of Double-Buffer Traffic Shaper in Real-Time Multimedia Applications across Slow-Speed Links  [PDF]
Ayodeji O. Oluwatope, Damilola T. Oyewo, Folake E. Olayiwola, Ganiyu A. Aderounmu, Emmanuel A. Adagunodo
Communications and Network (CN) , 2013, DOI: 10.4236/cn.2013.51008

In this paper, a double-buffer traffic shaper was investigated to adjust video frame rate inflow into the TCP sender-buffer of a multimedia application source across a slow-speed link. In order to guarantee QoS across a slow-speed link (i.e. < 1 MBPS), the double-buffer traffic shaper was developed. In this paper, the buffer size dynamics of double-buffer was investigated. The arrival and departure of frames were modeled as a stochastic process. The transition matrix for the process was generated and the stationary probability computed. A simulation program was written in Matlab 7.0 to monitor the buffer fullness of the second buffer when a 3600 seconds H.263 encoder trace data was used as test data. In the second buffer, it was discovered that over 90% of the play-time, the buffer occupancy was upper bounded at 300 frames per second and utilization maintained below 30%.

Groundwater Assessment of Hand Dug Wells around Open Landfill in Ibadan Metropolis for Domestic and Irrigation Purposes  [PDF]
B. S. Badmus, V. C. Ozebo, O. A. Idowu, S. A. Ganiyu, O. T. Olurin
Journal of Water Resource and Protection (JWARP) , 2014, DOI: 10.4236/jwarp.2014.615130
Abstract: Geochemical assessment of groundwater samples from hand-dug wells within the vicinity of Aba-Eku dumpsite was carried out for domestic and irrigation purposes. Ten groundwater samples were collected both in dry season and wet season for analysis of physico-chemical parameters: pH, EC, TDS,\"\"The results of the analyses showed the groundwater samples to be within limits of WHO/NSDWQ. However, higher values of concentrations of the chemical constituents were noticed in well 5 nearer to the landfill. Interpretation of Piper diagram showed CaHCO3 to be dominant in the area. Alkaline earth metals \"\" and weak acids \"\" are dominant cations and anions over the alkalis and strong acids in both sessions. Groundwater in the study area is of hard, fresh and alkaline nature. Assessment for irrigation purpose showed that most of the water samples were suitable for irrigation purpose except in a few locations.
Inhibitory Effect of Aqueous Extract of Moringa oleifera and Newbuoldia laevis Leaves on Ferrous Sulphate and Sodium Nitroprusside Induced Oxidative Stress in Rat’s Testes in Vitro  [PDF]
Seun F. Akomolafe, Ganiyu Oboh, Afolabi A. Akindahunsi, Ayodele J. Akinyemi, Olusola Adeyanju
Open Journal of Medicinal Chemistry (OJMC) , 2012, DOI: 10.4236/ojmc.2012.24015

Oxidative stress has been identified as one of the factors that affects fertility status. Therefore, this study sought to investigate the inhibitory effect of aqueous extract of Moringa oleifera and Newbuoldia laevis leaves on FeSO4 and Sodium Nitroprusside (SNP) induced lipid peroxidation in rat testes in vitro. Incubation of the testes tissue homogenate in the presence of FeSO4 and SNP caused a significant increase in the malondialdehyde (MDA) contents of the testes. The aqueous extract from both Moringa oleifera and Newbuoldia laevis leaves caused a significant decrease in the MDA contents of the testes in a dose-dependent manner. However, aqueous extract from Moringa oleifera leaf (EC50 = 0.29 mg/ml) had a significant (P<0.05) higher inhibitory effect on Fe2+ induced lipid peroxidation in the rat testes homogenate than that of Newbuoldia laevis leaf extract (EC50 = 0.58 mg/ml); while there was no significant (P<0.05) difference between the plant extracts on SNP induced lipid peroxidation in the rat testes homogenates. Therefore, part of the mechanisms through which the water extractable phytochemicals in the leaves protect the testes from oxidative stress may be through their antioxidant activity; DPPH scavenging ability, Fe2+ chelating and reducing power. Therefore, these plants have potential to prevent oxidative stress in testes and improve fertility outcomes.

A Comparison of Clinical Features of Depressed and Non-Depressed People Living with HIV/AIDS, in Nigeria, West Africa  [PDF]
Rasaki O. Shittu, Baba A. Issa, Ganiyu T. Olanrewaju, Abdulraheem O. Mahmoud, Sunday A. Aderibigbe, Louis O. Odeigah
Open Journal of Medical Psychology (OJMP) , 2014, DOI: 10.4236/ojmp.2014.31008
Abstract: Objectives: Depressive disorders are a significant public health issue. They are prevalent, disabling, and often chronic, with a high economic burden to the society. Depressive illness is the most common psychiatric disorder in HIV/AIDS with prevalence 2 to 4 times higher than the general population. It’s still questionable whether HIV related depression is clinically different from sero-positive patients without depression. Studies comparing the clinical features of depressed and non-depressed People Living with HIV/AIDs are limited, hence the need for this study. Methods: This was a hospital based, cross sectional, descriptive study of three hundred adult HIV/AIDS patients attending the HIV clinic of Kwara State specialist hospital, Sobi, Ilorin. The PHQ-9 was administered to the respondents to screen for depression. A pre-tested PHQ-9 questionnaire was used to collect data. Subject who scored one and more were assessed clinically for depression. The three keys of social determinants of depression (SDS) were assessed and the association with depression sought. Results: One hundred and seventy (56.7%) satisfied the criteria for a depressive disorder using the PHQ-9 score. Compared to non-depressed sero-positive patients, depressed HIV patients were more likely to be female, single, unemployed, with below average year of schooling, low social economic status, low social cohesion and more stressful life events. They are more prone to hopelessness, thought of taking life and plan to commit suicide. Conclusion: These findings, show that the clinical and associated features of depression differ between depressed and non-depressed sero-positive subjects, thus requiring different management.
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