CBE Institutional Repository
This is the one stop center for accessing and sharing a wealth of academic and research resources produced by our member of staff. Our repository is therefore, dedicated to showcasing the exceptional scholarly work produced by our institution's faculty, researchers, and students. Some of the works produced may be:
- Research Papers
- Theses and Dissertations
- Conference Proceedings
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Recent Submissions
Assessing Students’ Performance in Mathematics in Tanzania: The Teacher’s Perspective.
(IEJME, 2020-04-08) Mazana, Mzomwe Y.; Montero, Calkin S.; Casmir, Respickius O.
One of the aims of teaching and learning mathematics is to encourage and enable learners to become confident in using mathematics to analyze and solve practical problems in real-life situations. However, while a few students prosper in learning of mathematics, many students find it difficult and ultimately fail the subject. This study analyses students’ mathematics performance data and examines the perception of teachers on the causes of poor academic performance in
mathematics among students in Tanzania. The study also probes on teachers’ emotions when teaching mathematics. The study utilizes the primary, secondary and tertiary students’ performance data during the period 2008 to 2016. The data were obtained from the National Examination Council of Tanzania and the College of Business Education records as well as 28 semistructured interviews with purposively selected teachers and lecturers. Data are analyzed through
content analysis and descriptive statistics. Findings reveal higher failure rates in primary and secondary schools particularly lower secondary school. Gender differences exist at all levels of education with girls underperforming in primary, lower secondary, and college examinations due to cultural factors impacting female students’ learning. Factors associated with student’s poor performance in mathematics are in line with Walberg’s productivity model but for Tanzania, policy environment and culture also play an important role. The findings reveal that majority of mathematics teachers and lecturers possess mixed emotions towards student’s ability and the teaching-learning environment. Measures to improve the situation suggested include; enhancement in teaching-learning environments, classroom instructions, teaching skills, students learning skills, teacher training programs, attitude of the community, and accountability. The results provide information about the trends of mathematics achievement and associated factors for educators and other stakeholders to consider the implication in curriculum and instructional practices of mathematics at all levels of education.
Assessment of Public Awareness on Cyber Complexity when Using of Social Media Platforms in Tanzania.
(EJTAS, 2023) Mkoweka, Wilbert M.
The study was conducted at Kigamboni Municipal to assess the public awareness on cyber complexity when using social media platforms. Specifically the study was interested to determine the level of public awareness of various cyber complexities and risks associated with using social media platforms, to examine the ways used by the government and other stakeholders in creating public awareness on cyber complexity when using social media platforms, and to understand the attitude and perceptions of the public towards cyber complexities in social media use. The study collected information from a number of 100 respondents who were selected through random and purposive sampling techniques. Interview and questionnaires were used as tools for data collection. The study revealed that respondents were in majority using social media platforms and Instagram was the most social media platforms used. The study revealed that most of respondents were not knowledgeable about cyber bullying and its associated laws and policies. The study also revealed that there was little effort conducted by the government and other stakeholder in conducting campaigns aiming at creating awareness about cyber-crimes associated with social media platforms. The study was interested is finding out measures that could be used taken to improve public awareness on cyber complexity when using social media. a large number of respondents proposed the need for conducting education in schools and higher learning institution.. Unless the government furnish many efforts in introducing the proper use of social media in school curricula in all schools and higher learning institutions still the efforts done by the police is minimal compared to the influence of social media.
Performance Characterization of Two-Server Batch Service Queue With Second Optional Service.
(Reliability: Theory & Applications, published by Gnedenko Forum, 2023-12) George, Andwilile A.; Laxmi, P. V.
In this paper, we analyze the performance of a finite capacity two-server Markovian batch service queueing model with second optional service. The servers provide two kinds of services, the first essential service (FES), which is provided to all incoming customers and the second optional service (SOS) to those who demand it after completing FES. The service times of the two servers are identical and are exponentially distributed. Matrix-decomposition method is used to obtain the steady-state probabilities of the model. Numerical results and discussion are presented to demonstrate the impact of the model parameters on the system behavior. Furthermore, the cost model optimization is developed to determine the optimal service rates using the Quasi-Newton method to minimize the expected cost. Finally, the findings of this work show that the blocking probability is monotonically decreases as finite buffer size increases and approaches its minimum value of zero when finite buffer is sufficiently large.
Assessment of the Effectiveness of Risk Management Practices in the Performance of IT Projects.
(EJTAS, 2023) Makambajeki, Ruth P.; Mjema, Emanuel A.
This study assessed the effectiveness of risk management practices in the performance of IT projects. This study was guided by Project Management Theory. The study employed a mixed research approach, a mixed research approach and descriptive research design. The study was conducted at the Tanzania Revenues Authority Head Office in Dar es Salaam, the targeted population of this study is 200 and the sample size was 133 obtained suing simple random sampling techniques and purposive sampling techniques. in this study data was analysed using quantitative and qualitative techniques. The findings show that management practices are very essential in the implementation of the IT projects. It was also shown that effective project implementation depends much on the effective risk management practice because it is through them that risk can be mitigated for the sustainability of the IT projects. moreover, the results obtained through correlation analysis shows that Risk Assessment Practices (RAP) correlated (r (125)> .568, P< .000), Risk Response Practices (RRP) correlated (r (125)> 452, P < .000), Risk Response Practice (RRP) and the performance of IT Projects (PIP). Lastly Monitoring and Control Process (MCP) had a correlation of (r (125)> 652, P < .000. The results of this study concluded that there is a positive and significance relationship between risk management practices and the performance of IT projects. Despite of these supportive findings this study recommended for the proactive management of project risk because IT project implementation is subject to the limitation challenges and risks, thus through proactive management of project risk a comprehensive assessment of risk and preparation of a suitable management plan can be activated. The study recommended further research be conducted on the assessment of the effectiveness of implementation approaches toward project sustainability.
Awareness Enhancement on Atomic Energy and Nuclear Technology Applications Using ICT.
(African Journal of Applied Research, 2022) Busagala, L. S. P.; Kayanda, A. M.
Purpose: There have been a lot of applications of atomic energy and nuclear technology in different development activities in Tanzania but it seems that people are not aware of this. On the other hand, ICT has been reported to enhance the awareness of various issues. It is not known how much ICT takes a role in enhancing the awareness of atomic energy and nuclear applications in Tanzania. This study therefore aimed at uncovering the role of ICT in enhancing awareness of atomic energy and nuclear technology applications in Tanzania. Design/Methodology/Approach: The study used a quantitative method whereby a five scale Likert-scale questionnaire was used to collect data from higher education students and the public. The descriptive statistics and a t-test were used as part of the analysis of the findings. Findings: The results show that generally, most students and people from the public are not aware of the applications of nuclear technology in Tanzania (Mean: 3.18) and most of them (Mean: 3.42) have not been using ICT to get information on nuclear technology application in Tanzania. It was also found that there is a significant difference (p<0.05) between students and the public in both awareness and perception of the use of ICT to increase awareness with a small effect (0.2