Faculty of Science and Technology

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Start date: 2020End date: 2024

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    The role of energy resources to production output in cement organizations in Tanzania: Evidence from selected energy resources
    (International Journal of Economics, Business and Management Research, 2020) Mandara, Isack; Sungau, Joseph
    In a country, energy is an important resource to be considered for development of a Nation. The total country energy consumed determines the level of development of a Nation. Being the case, countries and organization should be provided with empirical evidence on how energy resources affect production output. However, in this area, little has been researched to explain the effect of energy resources on production output. Therefore, this paper aimed at determining the role of energy resource to production output in cement organizations. The study was conducted in Tanzania and used time series data for ten (10) years, from year 2005 to year 2014. In order to assess the effect of energy resource on production output, the study used multiple linear regression model to analyze the data. From the findings of the study, it was revealed that energy resources have positive and significant effect on production output in cement organizations. Being the case, cement organizations should consider energy resource as a key and an important resource in production of cement
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    Unpacking the Lean Manufacturing Implementation in Small and Medium Food and Beverage Industries in Tanzania: A Factor Analysis Approach
    (Mzumbe University, 2024) Mary Shoshiwa; Bahati Ilembo; Joseph Sungau
    This paper examined the status of lean manufacturing implementation in food and beverage SMEs in the selected two regions through lean tools integrated and lean outputs achieved. The study employed a mixed method approach. Qualitative and quantitative designs were used to inform the analysis. The study used cluster random sampling with a sample of 120 industries consisting of different small and medium food and beverage processing industries. We used descriptive statistics and Index of Relative Importance to rank indicators for both lean tools implementation and lean output. Factor analysis was also used to identify the underlying Relationships of the variables for lean implementation. Results show that majority of the food and beverage SMEs have adopted and implemented work standardization through presences of operation procedures to avoid variations; followed by Statistical Process Control. Also, out of the seventeen lean tools indicators, five are highly implemented in most of the selected industries for increasing process utilization, efficiency and quality improvement with the remaining twelve not highly implemented. Further, results revealed that, defective products are highly reduced in the SMEs after the implementation of lean tools, followed by reduction of inappropriate processing of products. It is recommended that, in order to identify areas for improvement, necessary for industry sustainability, the industries must do lean assessments, monitoring and evaluation mechanisms to ensure the continuous improvement of lean practices. Also, tailoring lean strategies to specific sectors within SMEs is very important.
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    Teachers' perceptions of public employees' performance management Information system effectiveness in government secondary schools in Mzumbe Ward, Tanzania
    (African Quarterly Social Science Review, 2024) Komba, Mercy M.
    The Public Employees' Performance Management Information System (PEPMIS) was the focus of this study, which evaluated its effectiveness in government secondary schools in Mzumbe Ward, Tanzania. The expectancy theory guided the study, which provided a framework for understanding employee motivation and behaviour. A qualitative case study design was used, involving qualitative interviews with 13 teachers purposively sampled from Mongola and Mzumbe Secondary Schools. Data saturation determined the sample size. Thematic analysis was used to analyze data. The findings reveal that while PEPMIS enhances administrative efficiency and supports professional development, its effectiveness is hindered by challenges related to fairness, transparency, training, technical functionality, and network reliability, necessitating improvements for greater usability and satisfaction. Addressing these challenges through targeted interventions can enhance the system's effectiveness, user satisfaction, and overall impact on organizational performance. The study recommends training programs for teachers and school administrators, addressing technical infrastructure issues, and incorporating feedback mechanisms into PEPMIS to make it more responsive to teachers' needs and expectations. This paper contributes to the understanding of PEPMIS from teachers' perspectives. It highlights important insights for policymakers and educators in improving PEPMIS implementation and its impact on the country's education sector.
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    Usability and challenges of cloud storage: Perspectives of academic staff at Mzumbe University, Tanzania
    (East African Journal of Education and Social Sciences, 2024) Komba, Mercy Mlay; Komba, Gabriel Vitus
    This study aimed to explore the perspectives, preferences and challenges of Mzumbe University faculty regarding cloud storage adoption. Utilizing a case study design, the researchers conducted semistructured interviews with a purposive sample of 15 faculty members to capture diverse viewpoints. The study used the thematic analysis approach to analyse the data retrieved from interviews. Based on the findings, the study concluded that cloud storage systems have several advantages, such as easy accessibility features, robust security protocols, service compatibility and intuitive user interfaces. These benefits encourage academic personnel to collaborate and increase productivity. However, some challenges existed. These are related to internet access, cost, lack of formal training and security. The study recommends that enhancing the university internet infrastructure is critical to guaranteeing reliability and fast connectivity for effective utilization of cloud storage. The university may also think of offering financial assistance for supplementary storage requirements to academic staff.
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    Role of energy resources to production output in cement organizations in Tanzania: Evidence from selected energy resources
    (International Journal of Economics, Business and Management Research, 2020) Sugnau, Joseph; Mandara, Isack
    In a country, energy is an important resource to be considered for the development of the Nation. The total country's energy consumption determines the level of development of a nation. Countries and organisations should be provided with empirical evidence on how energy resources affect production output. However, little has been researched in this area to explain the effect of energy resources on production output. Therefore, this paper aimed to determine the role of energy resources to production output in cement organizations. The study was conducted in Tanzania and used time series data for ten (10) years, from year 2005 to year 2014. To assess the effect of energy resource on production output, the study used multiple linear regression model to analyze the data. From the findings of the study, it was revealed that energy resources have positive and significant effect on production output in cement organizations. Being the case, cement organizations should consider energy resources as a key and important resource in the production of cement.
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    Social life cycle assessment in solar dryer house for postharvest loss management technology: Application of UNEP / SETAC in Tanzania
    (Arabian Journal of Business and Management Review (Kuwait Chapter), 2024) Sungau, Joseph; Mkuna, Eliaza; Abeid, Ashiraf; Lyakurwa, Felichesmi; Manouchehr, Shokri
    Social Life Cycle Assessment is inherently an extension of sustainability assessment that is limited to environmental and economic pillars. Social life cycle assessment (S-LCA) on the other hand is a methodology used to cover the social aspects of sustainability. This article integrates three pillars of sustainability; economy, environment and society on Solar Dryer House technology for reduction of post-harvest losses. The purpose of the article is to examine the extent of sustainability of Solar Dryer House technology by exploring the environmental, economic and social pillars. A textual analysis was undertaken on United Nations Environment Program/Society for Environmental Toxicology and Chemistry (UNEP-SETAC) Life Cycle Initiative to examine the social life cycle assessment of SDH manufacturing technology on major categories of producers, workers, distributors, consumers. Analysis of social indicators were developed with the scoring system to describe the potential positive and negative social impacts on related stakeholders within life cycle stages. Lack of clarity in conceptualizing of UNEP-SETAC Life Cycle Initiative to examine the social life cycle assessment of SDH manufacturing technology limit the application of sustainability assessment on manufacturing technologies in Tanzania. Social Life Cycle Assessment supports social and labour policies as well as Sustainable Development Goal 8 which entails that people should have jobs that pay decently to support their livelihoods while other social welfare aspects and labour rights are considered. Manufacturing technologies that adhere to S-LCA principles guarantee sustainability.
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    The influence of ChatGPT on digital learning: Experience among university students
    (Global Knowledge, Memory and Communication, 2024) Komba, Mercy Mlay
    Purpose This study aims to investigate the influence of ChatGPT, an AI-based chatbot, on the digital learning experience of students at Mzumbe University. Design/methodology/approach This study adopted a qualitative research design to gather in-depth insights from participants. Semi-structured interviews and an analysis of previous chat content were used as primary sources of data. Thematic analysis was used to analyze the qualitative data, allowing for the exploration of participants’ perspectives, experiences and opinions regarding the integration of ChatGPT into the learning process. Findings The results of the study demonstrated that ChatGPT is widely used in educational contexts and has a positive influence on students’ study habits, academic performance, and understanding of course material. Students appreciated the system’s simplicity, tailored instructions, and the promptness and accuracy of the responses. Despite the possibility of isolated mistakes. Research limitations/implications It is important to recognize the limitations of this study. First, the sample size was small, limiting the broad application of the results. Second, this study’s narrow emphasis on students at Mzumbe University limits its applicability in other situations. Furthermore, depending on self-reported experiences, biases, such as individual interpretation or recollection bias, can occur. Practical implications Educators can maximize ChatGPT in the classroom by using study insights. Its advantages, such as effectiveness and enhanced performance, highlight the possibility for student-centered learning. Practitioners are guided by their awareness of problems, such as probable errors. Constant updates guarantee ChatGPT’s applicability and provide educators with useful advice. Social implications Peer impact is highlighted in this study concerning social factors on the adoption of AI in education. Resolving issues preserves public confidence. Views influence public opinion and direct policymakers in discussions about safe AI use. It influences public attitudes while navigating the ethical integration of AI. Originality/value This study offers insightful information about the impact of ChatGPT on digital learning in Tanzania’s higher education. It makes innovative research contributions that enhance educational practices and emphasizes the advantages, difficulties and demands of responsible usage in the context of AI-based chatbots.
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    Trust framework on exploitation of humans as the weakest link in cybersecurity
    (NASK–Państwowy Instytut Wydawniczy, 2023) Daudi, Morice
    The significance of cybersecurity is increasing in our daily digital lives. The reason for this rise is that human interactions take place in computer-mediated environments, or cyberspace, where physical cues from face-to-face interactions are either absent or very minimal. Computer users are becoming increasingly susceptible to cyberattacks as a result of human interactions in cyberspace. Understanding how cybercriminals exploit the human trust, the weakest link in cybersecurity is relevant because cybercriminals focus on attacking the human psychology of trust rather than technical-based controls. To this end, the present paper develops a trust framework on exploitation of humans as the weakest link in cybersecurity. The framework is established by linking the human psychology of trust and techniques used by cybercriminals in deceiving and manipulating users of computer systems. The framework is validated by demonstrating its application using a case study employing real data. Findings show that cybercriminals exploit human trust based on trust development processes and bases of trust, either creating (falsified) expectations or a relationship history to lure the victim in. Furthermore, it is revealed that technical-based controls cannot provide effective safeguards to prevent manipulation of the human psychology of trust.
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    A Decision supporting algorithm for improving sunflower production amidst changing weather in the singida region, Tanzania
    (East African Journal of Science, Technology and Innovation, 2024) Kisanjara, Simeo; Matimbwa, Hadija
    Recent drastic weather shifts driven by global warming have adversely affected African agriculture, culminating in low crop yields. The purpose of this study is to design decision support algorithms (DSA) that will aid sunflower farmers in the Singida Region in managing the risks associated with weather variations and consequently improve crop yields. A total of 80 respondents, including meteorologists, agricultural extension officers (AEOs), and farmers with feature and smart phones, contributed to the study's designedand empirical validation of the algorithm. The study designed and validated the DSA that assist sunflower growers in the Singida region in making informed decisions to improve productivity amidst adverse weather changes. As revealed, farmerswho use both smartphones and feature phones are extremely satisfied with the DSA functions. The decision support algorithm designedin this study integrates smart and feature phone elements that were overlooked in comparable, prior systems and algorithms.Farmers that grow other crops that behave similarly to sunflower in areas with characteristicscomparable to the Singida region will find the study's designedand validated algorithm helpful. In order to assist sunflower farmers in making decisions, theDSA interprets and processes data on a predetermined set of daily activities. In order to advance the use of ICT applications in farming activities, the study's findings took into consideration farmers who used feature phones with SMS-based notifications and those who used smartphones. The existing systems mostly concentrated on integrating web-based systems through mobile phones, which is dependent only on internet connectivity being available. Moreover, the use of web-based systems via mobile phones only results in restricted coverage and is out of reach for many farmers. Thus, the innovative element that emphasizes the study's contribution to the field in Tanzania's rural areas is the integration of feature and smart phone.IntroductionAgricultural production in Africa is significantly impacted by adverse weather shifts owing to variability (Stevanovi’c et al.,2016). The continent’svulnerability is attributable to severalchallenges, including extreme poverty, limitedemployment opportunities, and a lack of Keywords:ICTs; Decision Support Algorithm; Smart-feature phone; weather changes; Agriculture;Sunflower Productivity Cite as,Kisanjara and Matimbwa,(2024). A Decision supporting algorithm for improving sunflower production amidst changing weather in the singidaregion, Tanzania.East African Journal of Science, Technology and Innovation 5(2).Received: 02/01/24Accepted: 05/03/24Published: 28/03/24EISSN: 2707-0425
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    Internet of things and organizational performance in the Tanzanian banks
    (Emerald Publishing Limited, 2023) Kisanjara, Simeo
    Purpose – The adoption of the Internet of Things (IoT) as a new technology is gaining traction in many business organizations in developing countries. The purpose of this study is to assess the effect of IoT on the organizational performance of Tanzanian banks. Design/methodology/approach – For data collection, this study used a quantitative approach with a questionnaire. A total of 342 respondents were considered, with an 82.16% response rate. AMOS software was used to analyze data using structural equation modeling (SEM) as the primary technique. Findings – The results revealed that the majority of the hypotheses tested in this study have a significant effect on organizational performance, as indicated by their p-value of 0.05. However, there is no statistically significant effect of performance expectancy on organizational performance by lowering IoT operation costs. Furthermore, the availability of IoT has no discernible effect on organizational performance by improving service quality. Practical implications – The findings of this study inform policymakers to reformulate information and communication technologies policy to clearly spell out the adoption and implementation of the IoT as a new technological innovation for providing services not only in the banking sector but also in other service delivery organizations. In particular, the policy should have a clear vision of implementing an appealing, conducive and positive, meaningful service delivery environment, as well as achieving appropriate, successful, effective and sustainable organizational performance Originality/value – As a result, this paper contributes to a better understanding of the factors (including performance expectancy, effort expectancy and accessibility) of IoT on organizational performance by influencing operational costs, service delivery speed and service quality. These factors were not adequately addressed in previous related studies, and they have a significant influence on organizational performance levels in Tanzanian banks.