Browsing by Author "Abdullahi, U."
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Item Improved Clustering Routing Protocol for Low-Energy Adaptive Cluster-Based Routing in Wireless Sensor Network(Faculty of Technology Education, Abubakar Tafawa Balewa University, Bauchi, Nigeria, 2018-09-11) Bello-Salau, Habeeb; Onumanyi, Adeiza James; Salami, Abdulazeez Femi; Muslim, S.; Audu, W. M.; Abdullahi, U.Advancement in wireless sensor network (WSN) technology and sensor instrumentation has contributed to the development of novel protocols which are designed specifically for WSN, where conservation of energy is of utmost importance. Though, the performance of the clusterbased routing protocols is limited by problems related to determining an accurate and energyefficient radio model for the sensor nodes in the network. A number of radio models have been proposed to improve the performance of WSN clustering routing protocols but the basic assumptions and inaccurate configuration of these radio models make them ineffective and most time lead to poor utilization of the limited energy and computational resources. This paper addresses this challenge by proposing an improved radio model that incorporates specialized data transmission schemes, stepwise energy level and capable of adapting to frequent changes in the position of the motes without hindering the reliability of the data transmission to the sink, despite fluctuations due to signal interference. The proposed radio model was incorporated into the Low-Energy Adaptive Clustering Hierarchy (LEACH) protocol and called LEACH-IMP. The proposed LEACH-IMP shows a better performance in terms of the energy consumption, number of packets received, signal interference and network lifetime when compared to LEACH routing protocol.Item Measles in a Tertiary Institution in Bida, Niger state, Nigeria- Prevalence, Immunization Status and Mortality Pattern.(Oman Medical Specialty Board, Oman, 2011) Adeboye, M. A. N.; Adesiyun, O. O.; Adegboye, O. A.; Eze, E. C.; Abubakar, U.; Ahmed, G.; Abdullahi, U.; Solomon, A.; Rotimi, B. F.Objectives: Measles is a highly infectious immunizable disease with potential for eradication but is still responsible for high mortality among children, particularly in developing nations like Nigeria. This study aims to determine the hospital based prevalence of measles, describe the vaccination status of children managed for measles at the Federal Medical Centre, Bida, Niger state and to identify the parental disposition to measles vaccination. Methods: This is a cross-sectional study carried out over a period of 18 months beginning from July 2007. All children with a diagnosis of measles made clinically and reinforced with serological test in the WHO Measles, Rubella and Yellow Fever laboratory in Maitama District Hospital, Abuja were recruited. Informed consent was obtained from the parents/care givers. Structured questionnaire was used to obtain information and data analysis was by SPSS version 15. Results: One hundred and nine children were managed for measles, constituting 8% of total admission over the study period. The male to female ratio was 1.2:1. Of the 109 children with measles, 90 (82%) did not receive measles vaccination. Eighty-eight (80%) of the parents or guardian felt vaccination was bad for various reasons. Of the 23 (21.1%) children whose parents or guardians were positively disposed to vaccination, one death was recorded while the remaining seven deaths were recorded among children whose parents were negatively disposed to vaccination. All the deaths were in the non-vaccinated group below 2 years of age. Conclusion: Measles is still a major health burden in our community. The majority of affected children were not vaccinated due to negative parental disposition. Continuous health education is required for change the disposition of the parents/guardian and improve vaccination coverage to minimize measles associated morbidity and mortality.