ABSTRACT Tanzania and other developing countries use a model called Workload Indicators for Staffing Need (WISN). The use of the WISN model in Health Human Resource planning and management is limited by several factors including budget, prospected retirees, and strategic priority. Also, the WISN users find the methodology, especially the implementation of its technical steps complex and laborious, thus makes the tool difficult to use. The algorithm used needs to be optimized or improved to o...
ABSTRACT The usage of personal identification number (PIN) as an authentication method in accessing mobile money services (MMSs) conveys many security flaws as it is easy to be forged, not being hidden when entered, and easy to be shared among users, all of these may cause unauthorized access to MMSs. This study focused on proposing a framework to improve security on the usage of MMS by using two-factor authentication (2FA) of PIN and iris biometric authentication method in Tanzania. With th...
ABSTRACT The synthesis of ten new alkynylated derivatives of angular phenoxazine and alkynylated naphthoquinone was thoroughly investigated. The first intermediate, 6-chloro-5Hbenzo[ a]phenoxazin-5-one was obtained by the condensation of 2-aminophenol with 2,3- dichloro-1,4- naphthoquinone in the presence of anhydrous sodium tricarbonate (IV) . Thereafter, the intermediate and 2,3-dichloro-1,4-naphthoquinone were each suggested to Sonogashira cross–coupling reaction under copper-, amine-, ...
ABSTRACT The concentration of six heavy metals and six of sixteen (16) US EPA priority polycyclic aromatic hydrocarbons (PAHs) in water, fish and sediment samples of the confluence of rivers Niger and Benue were investigated in triplicates using atomic absorption spectrophotometer (AAS) for the heavy metals determination and gas chromatography coupled with mass spectrometer detector for the PAHs after acid digestion of the samples for heavy metals,liquid-liquid and solid-liquid extracti...
ABSTRACT The purpose of this study was to design and test a data cleaning prototype for use in data processing at LAPF Pensions Fund. The specific objectives were: (1) to analyse the root causes of data errors and identify the existing data errors in LAPF database (2) design, implement and test a data cleaning prototype to correct errors identified and (3) test the features of a data cleaning tool prototype in LAPF database. The judgemental sampling approach was used to select 19 respondents...
ABSTRACT Magnetically recoverable Pd/Fe3O4-catalyzed Hiyama cross-coupling reactions of 6-Bromo-5H-benzo[a]phenothiazin-5-one, 6-Bromo-5H-naphtho[2,1-b]pyrido[2,3-e][1,4]oxazin-5-one and 11-Amino-6-bromo-9-thio-5H-naphtho[2,1-b]pyrimido[5,4-e][1,4]oxazin-5-one (as intermediates) with 2-(Dimethylsilyl)pyridine and Dimethyl(2-thienyl)silanol were investigated. The intermediates were prepared by the reactions of 2-Aminothiophenol, 2-Aminopyridin-3-ol and 4,5-Diamino-6-hydroxylpyrimidin-2-t...
ABSTRACT The use of Information and Communication Technology (ICT) in teaching and learning has been the main target for public and private schools in Tanzania since the beginning of the 21st century. Since then, however, the achievement of using ICT on teaching and learning has been relatively unsatisfactory due to several reasons including incompetence and poor understanding of teachers on ICT. This study intends to understand ICT literacy level, use of ICT tools in delivering contents, an...
ABSTRACT This dissertation centers on comparing two methods based on consistence and ranking preservation of alternatives in analytic hierarchy process(AHP) by using the best job example. These two methods logarithmic least square method (LLSM) and eigenvalue method (EM) are used to develop approximations of ratio scales from a positive reciprocal matrix. The measurement of consistency and rank preservation are the main criteria for comparison of these two methods. The priorities obtained f...
ABSTRACT This project focused on the development of a social network based distance learning (elearning) system. Various existing distance learning programmes were thoroughly investigated and inherent problems identified. A more robust and better approach is proffered using the social network model. The unification of these systems will be made feasible by integrating social network such as skype and facebook with distance learning (e-learning) protocols. A video based Learning Manageme...
ABSTRACT Cashless economy has ushered in the cashless banking framework across different countries of the world and this is made possible by the advances in information technology. Electronic cash is a term becoming more acceptable as the world makes a shift towards a cashless society. This research work presents the development of a mobile payment system which implements cashless economy. The main aim of this development is to reduce some cash-related crimes in our society such as: robberie...
ABSTRACT The roots of Dennettia tripetala and Milicia excelsa were analyzed for the presence of phytochemicals. Five different solvents, which include methanol, ethanol, ethyl acetate, butanol and water, were used for the extraction of the phytochemicals.The root of Dennettia tripetala contained alkaloids, terpenoids, flavonoids, saponins, phenols, steroids and glycosides in varying degrees of abundance in the different solvents with tannins not detected in all the solvents. Milicia excelsa...
ABSTRACT. Waste disposal and groundwater quality studies were carried out in the Jimeta- Yola area. The area lies between latitudes 9'1 1'N to 9'20'~a nd longitudes 12'23'~t o 12'33'~a~nd covers an areal extent of about 305km2. Groundwater quality monitoring was carried out through the collection of water samples from hand-dug wells, boreholes and leachates beneath refuse dumps. These samples were analyzed chemically and bacteriologically using atomic absorption spectrophotometer (AAS), DW201...
ABSTRACT Tandem amidation catalyzed synthesis of linear diazaphenoxazine carboxamide derivatives is reported. This was achieved by the reaction of 2-amino-3-hydroxypyridine and 2,3,5-trichloropyridine in aqueous basic medium which gave 3-chloro-1,9-diazaphenoxazine as white solid crystals. 3-Chloro-1,9-diazaphenoxazine was then subjected to Buchwald-Hartwig amidation coupling reaction with various amides namely formamide, phthalamide, 4- nitrobenzamide, benzamide and acetamide via water prom...
Abstract A systematic approach for assessing critical performance indicators can be achieved through the implementation of a quality assurance (QA) program. The objective of this study was to evaluate the quality control of x-ray mammography machine in two centers, namely: during the period from October to December 2017. The test results were done by quality control tools and image quality tools. Series of tests(specific radiation output, output variation with kVp, output variation with mAs,...