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Search Results: 1 - 10 of 325397 matches for " S Babatunde "
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An Empirical Study of the Optimum Team Size Requirement in a Collaborative Computer Programming/Learning Environment  [PDF]
Olalekan S. Akinola, Babatunde I. Ayinla
Journal of Software Engineering and Applications (JSEA) , 2014, DOI: 10.4236/jsea.2014.712088
Abstract: Pair programming has been widely acclaimed the best way to go in computer programming. Recently, collaboration involving more subjects has been shown to produce better results in programming environments. However, the optimum group size needed for the collaboration has not been adequately addressed. This paper seeks to inculcate and acquaint the students involved in the study with the spirit of team work in software projects and to empirically determine the effective (optimum) team size that may be desirable in programming/learning real life environments. Two different experiments were organized and conducted. Parameters for determining the optimal team size were formulated. Volunteered participants of different genders were randomly grouped into five parallel teams of different sizes ranging from 1 to 5 in the first experiment. Each team size was replicated six times. The second experiment involved teams of same gender compositions (males or females) in different sizes. The times (efforts) for problem analysis and coding as well as compile-time errors (bugs) were recorded for each team size. The effectiveness was finally analyzed for the teams. The study shows that collaboration is highly beneficial to new learners of computer programming. They easily grasp the programming concepts when the learning is done in the company of others. The study also demonstrates that the optimum team size that may be adopted in a collaborative learning of computer programming is four.
Microcontroller-based intelligent power management system (IPDMS) for satellite application
Babatunde S. Emmanuel
Journal of Engineering and Applied Sciences , 2012,
Abstract: Efficient power distribution management is very crucial for satellites to navigate their orbits and achieve their mission objectives. The Satellite Electrical Power Subsystem (EPS) is responsible for power supply in satellites for housekeeping operations. This research project is aimed at the design of a microcontroller-based Intelligent Power Distribution Management System (IPDMS) for application in the efficient coordination of power savings and distribution to satellite system payloads. In the IPDMS design, 8-bits microcontroller was used to implement system intelligence. In addition, Java Programming Language was used to achieve a simulation model for virtual test for system reliability and efficiency. The IPDMS provided intelligence for real-time power storage. It managed power distribution through load shedding and power-cycling and actuated fault protection mechanism in the events of power emergencies very quickly and autonomously during eclipse and sunlight orbit periods. It monitored the battery temperature threshold levels to control destructive exothermic reaction. The IPDMS achieved an improvement over the conventional satellite power management and control systems in terms of system’s size reduction, self-contained intelligence, flexibility and improved system response to power emergencies.
Boundedness of solutions to fourth order differential equations with oscillatory restoring and forcing terms
Babatunde S. Ogundare
Electronic Journal of Differential Equations , 2006,
Abstract: This article concerns the fourth order differential equation $$ x^{(iv)}+ax'''+bx''+g(x')+h(x)=p(t). $$ Using the Cauchy formula for the particular solution of non-homogeneous linear differential equations with constant coefficients, we prove that the solution and its derivatives up to order three are bounded.
Emergency contraception: Knowledge and perception of female undergraduates in the Niger Delta of Nigeria
CI Akani, CE Enyindah, S Babatunde
Ghana Medical Journal , 2008,
Abstract: Objective: To evaluate the knowledge of, and perception of female undergraduates in the Niger Delta of Nigeria towards Emergency Contraception. Methods: Anonymous self administered questionnaires were applied to randomly selected non-medical female undergraduates of the University of Port Harcourt in May 2005. Results: Six hundred questionnaires were retrieved out of 610 distributed. The respondents were between 17- 30 years. Those reported to have ever had sex were 85.3%; most of whom (98.4%) have previously used some forms of contraception. About 50.7% of 600 respondents were aware of emergency contraception; amongst which reports of friends/peers as the source of knowledge ranked highest (33.55%). About 88.2% of those that are aware of Emergency Contraception knew the correct timing. More than half (57.9%) did not know correct dosage of the available post-coital pill. While half (50.7%) of those having knowledge of postcoital pills agree to the efficacy; only a third (35.53%) agreed to have actually used it. Conclusion: The awareness and use of Emergency Contraception amongst female undergraduates in Niger Delta region of Nigeria is low. Prompt education of this group of students in Emergency Contraception should be encouraged with emphasis on available methods and correct timing of use.
Community Perceptions and Practices in Management of Malaria in Under-five Children in Rivers State in Nigeria
CI Tobin-West, S Babatunde
International Journal of Health Research , 2012,
Abstract: Purpose: To determine baseline information on the perceptions of the causes and treatment of fevers suspected to be malaria in children less than five years in Rivers State, Nigeria in order to inform policy recommendations that will improve malaria control programme in the State. Methods: A cross-sectional survey was conducted in nine local government areas of the State through a multi-staged sampling, among parents and caregivers. Interviews were carried out using a questionnaire on malaria information adapted from WHO/ Federal Ministry of Health. Data was analyzed using Epi-Info v6.04d software, and descriptive statistics were computed with 95% Confidence Intervals for statistical inferences. Results: A total of 811 mothers/caregivers participated in the survey. Of these, 76.3% (95% CI=73.3–79.2) were aware that mosquitoes causes malaria fever. Fever was the commonest illness reported among children under five years two weeks preceding the survey (62.9%, 95% CI=59.5– 66.2). Majority of the caregivers (94.1%) reported taking actions within 24 hours of a child’s febrile illness by giving medications at home with drugs purchased from Patent Medicine Vendors rather than visiting a nearby health centre for treatment (53.3% (95% CI=49.6–57.0) versus 26.8% (95% CI=23.4–30.2). However, the drug mostly used for treatment was chloroquine sulfate (33.6%, 95% CI=30.1–37.2) instead of artemisininbased combined drugs 18.9%, 95% CI=16.8 – 21.9), Conclusion: Caregivers knowledge and response time to fever was reassuring that children can be reached promptly with more effective antimalaria treatment like artemisinin-based drugs, if community-directed management options that utilizes trained community-based volunteers were introduced.
Community Perceptions and Practices in Management of Malaria in Under-five Children in Rivers State in Nigeria
CI Tobin-West, S Babatunde
International Journal of Health Research , 2011,
Abstract: Purpose: To determine baseline information on the perceptions of the causes and treatment of fevers suspected to be malaria in children less than five years in Rivers State, Nigeria in order to inform policy recommendations that will improve malaria control programme in the State. Methods: A cross-sectional survey was conducted in nine local government areas of the State through a multi-staged sampling, among parents and caregivers. Interviews were carried out using a questionnaire on malaria information adapted from WHO/ Federal Ministry of Health. Data was analyzed using Epi-Info v6.04d software, and descriptive statistics were computed with 95% Confidence Intervals for statistical inferences. Results: A total of 811 mothers/caregivers participated in the survey. Of these, 76.3% (95% CI=73.3–79.2) were aware that mosquitoes causes malaria fever. Fever was the commonest illness reported among children under five years two weeks preceding the survey (62.9%, 95% CI=59.5– 66.2). Majority of the caregivers (94.1%) reported taking actions within 24 hours of a child’s febrile illness by giving medications at home with drugs purchased from Patent Medicine Vendors rather than visiting a nearby health centre for treatment (53.3% (95% CI=49.6–57.0) versus 26.8% (95% CI=23.4–30.2). However, the drug mostly used for treatment was chloroquine sulfate (33.6%, 95% CI=30.1–37.2) instead of artemisininbased combined drugs 18.9%, 95% CI=16.8 – 21.9), Conclusion: Caregivers knowledge and response time to fever was reassuring that children can be reached promptly with more effective antimalaria treatment like artemisinin-based drugs, if community-directed management options that utilizes trained community-based volunteers were introduced.
Innovation Management and Organisation Development. Empirical Study of Nigeria Banking System
B. O. Babatunde,Y. S. Adebisi
BRAND : Broad Research in Accounting, Negotiation, and Distribution , 2011,
Abstract: Innovation management is a new concept that every companies and countries all over the world are now giving strong consideration and priority. But it took longer than expected for the developing countries especially in Africa, to acknowledge the importance of innovation to the growth of a company and the development of an economy. It has been argued that innovation is the engine room of all economies, and this had propelled the researcher to look at the importance of innovation by taking a research study on “innovation management and organizational development”, using United Bank for African Plc as a case study. The researcher had selected and tested two(2) hypotheses using chi-square method. The study revealed that for any organization to achieve the purpose of its establishment of profit maximization and going concern, and to increase its level of productivity, service delivery and sales turnover and remain in the market as leader such company must be able to introduce new innovation and manage effectively changes that occur in their industry and environment. The findings of this research study has propelled the researcher to recommend that banking industries should maintain a continuous and effective R and D department and should allow all its staff to act as agents of change by giving them equal and free hands to operate. This will increase the level of innovativeness and productivity. Keywords: Innovation Management, Development, Modern technology and Chi-Square analysis.
Characterization of Phosphide Platelets in Eutectic Sand Cast Cu-Sn-P Alloy  [PDF]
L. O. Mudashiru, T. M. Azeez, S. O. Afolabi, I. A. Babatunde
International Journal of Nonferrous Metallurgy (IJNM) , 2015, DOI: 10.4236/ijnm.2015.43004
Abstract: A procedure for evaluating the degree of spheroidization of phosphide platelets in cast Cu-4%Sn- 5%P alloys using fractal analysis was investigated. The specimens were obtained by melting copper and tin in an improvised clay mould raised to a temperature of 1850°C ± 20°C, holding for a period of 10 minutes to 1 hour to modify the aspect ratio of the phosphide platelets. It was found that these platelets have the tendency to change their shape from being spherical to more Euclidian shapes as time elapses. It was found that the inter-platelets distances are approximately equal with time. This effect was more pronounced in samples with high holding time.
Probabilistic modeling and analysis of the effects of extra-cellular matrix density on the sizes, shapes, and locations of integrin clusters in adherent cells
Erik S Welf, Ulhas P Naik, Babatunde A Ogunnaike
BMC Biophysics , 2011, DOI: 10.1186/2046-1682-4-15
Abstract: To quantify how the concentration of ECM affects integrin clustering, we seeded cells expressing the integrin αIIbβ3 on different concentrations of the complementary ECM protein fibrinogen (Fg) and measured the resulting integrin cluster properties. We observed heterogeneity in the properties of integrin clusters, and to characterize this population heterogeneity we use a probabilistic modeling approach to quantify changes to the distributions of integrin cluster size, shape, and location.Our results indicate that in response to increasing ECM density cells form smaller integrin clusters that are less elongated and closer to the cell periphery. These results suggest that cells can sense the availability of ECM binding sites and consequently regulate integrin clustering as a function of ECM density.Integrins are transmembrane adhesion receptors that facilitate cell adhesion by binding extra-cellular ligands to provide a mechanical linkage between a cell and the extracellular matrix (ECM). Many types of integrins form micron-sized clusters, which create the foundation for various cell-matrix adhesion complexes including focal adhesions. These complexes are populated by a diverse group of membrane, structural, adaptor, and enzymatic proteins [1], and signaling via these complexes affects many important cellular processes [2]. Integrin clusters thus provide the platform for signal propagation as well as force transduction through focal adhesions; as a result cell signaling and adhesion depend directly on the spatial and temporal characteristics of integrin cluster formation and dispersion [3-6].Because integrin binding, clustering, and signaling depend on the availability of insoluble extracellular ligands [7-9], the availability of integrin binding sites is a critical property of the ECM proteins to which cells adhere. There is also a growing body of experimental evidence indicating that cells sense and respond to the concentration of ECM ligands available to them. Cel
Blindness in southern Nigeria: a review of available data
C.N Pedro-Egbe, S Babatunde
Nigerian Journal of Clinical Practice , 2010,
Abstract: To bring up to date, existing knowledge on the prevalence and common causes of blindness in SouthernNigeria. Available publications on blindness in national and international journals, some dissertations of theNational PostgraduateMedicalCollege and the internet using MEDLINE. Data relating to the prevalence and common causes of blindness in southern Nigeria over a 20-year period (1973-2003) was reviewed. All relevant articles, full length and abstracts, were sorted by categories i.e. into global, continental (Africa), Nigeria and then southern and northern Nigeria groupings. Recent information was also obtained on the internet using MEDLINE and the “Blindness in Nigeria”. Reviewed information shows that blindness is asmuch a problemin SouthernNigeria as it is in the rest of the less developed and poor countries of the world; and that the commonest causes of blinding diseases are largely preventable and treatable. An appreciable depth of data exists on blindness in southern Nigeria. Reviewed information indicate that blindness is asmuch a problemin southernNigeria as it is in the rest of the less developed and poor countries of the world, but regrettably, the commonest causes of blinding diseases in this region are largely preventable and treatable.
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