Digital Commons Network^™

Review Essay: Pius Msekwa's Reflections On Tanzania's First Multiparty Parliament: 1995-2000, Alexander B. Makulilo

Journal of African Policy Studies

No abstract provided.

Cover And Table Of Contents, Institute On African Affairs

Journal of African Policy Studies

No abstract provided.

Population Increase, Environment, Food Access And Development In Africa: The Role Of The African Union, Amado J. Kaba

Journal of African Policy Studies

This paper examines the impact of the massive population increase in Africa in the post World War II era and the environmental challenges the continent confronts in trying to feed such a high number of people. The paper is divided into three sections. The first section examines the demographics of Africa, which show that the continent has increased its total population by 750 million people from 1950 to 2008. The second section of this paper then presents arguments by scholars pertaining to the environmental challenges, especially for agriculture, facing Africa as it finds ways to feed this massive number of …

Impact Of Ict Adoption, Economic Growth, And Internet Connectivity Phases On Tax Revenue In Tanzania, Grayson Kisinga, Severine Kessy, Mashaka Mkandawile

Business Management Review

This study analyses the mixed evidence surrounding the impact of ICT adoption on tax revenue in Tanzania, focusing on ICT investments, ICT imports, internet usage, and broadband penetration. Drawing on the Technology Organization Environment (TOE) framework and Production Theory, the study adopts a positivist philosophy and deductive approach, using 25 years of time-series data. Employing Regressions, Autoregressive Distributed Lag (ARDL) modeling, and Structural Equation Modeling (SEM), it investigates long-term effects, mediation, and moderation. The findings reveal that ICT investments, ICT imports, and broadband penetration positively influence tax revenue over the long term, while internet usage has a negative effect. Economic …

Patterns And Determinants Of Fertility In Addis Ababa, Ethiopia, 1974-1998, Asfaw Yitna

Journal of African Policy Studies

Addis Ababa, the capital city of Ethiopia, reported a surprisingly low TFR level of 1.8 births per woman in the year 1994. Such a low level has never been experienced by any other large African city. In this paper, we attempt to confirm the adjusted level fertility of 2.1 births per woman and thus the fertility decline reported by the Central Statistical Authority (CSA), and to explore the important demographics, socio-economic and proximate determinants of fertility decline of Addis Ababa from 1974 to 1998.

We use data from fertility surveys of 1990 and 1995, conducted in Addis Ababa by CSA, …

The Policy Dilemmas Of Pesticides Management And Disposal In Tanzania, Paul J. Kaiser, John C. Morris

Journal of African Policy Studies

The purpose of this paper is to systematically evaluate and analyze pesticides management and disposal in Tanzania employing a theoretical approach that emanates from current research on public policy implementation. This case demonstrates that the national and international context of public policy-making and inter-governmental agency cooperation and coordination are essential to understanding the current environmental situation in the country. Given the paucity of published, African case studies used in the theory-building process, this study also attempts to contribute to strengthening the empirical legitimacy and theoretical soundness of the comparative method of social scientific inquiry by including African realities in scholarly …

Introduction To This Special Issue Of Joaps: Dynamics Of Conflict, Peace, And Security In Africa, Earl Conteh-Morgan

Journal of African Policy Studies

No abstract provided.

Multipartyism And Democratization In Cameroon, Tangie Nsoh Fonchingong

Journal of African Policy Studies

No abstract provided.

Sources Of Future Conflicts In The Horn: Water Management And Interstate Relations Among Egypt, Sudan, And Ethiopia, Nurudeen B. Akinyemi

Journal of African Policy Studies

No abstract provided.

Actualizing Bandung Spirit In The Contemporary World: The Study Of Indonesia And East African Countries Relations, Mansur Juned, Mohamad Hery Saripudin

Jurnal Wacana Politik

The Bandung Conference 1955 is an essential foundation of Indonesia and Eastern African nations under the scope of the Embassy of the Republic of Indonesia in Nairobi, Kenya. Yet, contemporary trends in trade, investment, and diplomatic engagement indicate that revitalizing this spirit requires new approaches amid a global economy driven by pragmatic interests.Therefore, this paper studies how the Bandung Conference spirit of solidarity is exercised in the contemporary Indonesia and Eastern Africa nations relations especially in terms of economy and politics. The paper uses the perspective international cooperation theory in scope of the global political economy which emphasizes that there …

Trammel-Crafting The Quadratrix, Andrew J. Simoson

ACMS Conference Proceedings 2024

No abstract provided.

The Impact Of Prenatal Yoga On Hip Mobility And Delivery Outcomes, Zoe Avery

Mahurin Honors College Capstone Experience/Thesis Projects

Yoga has been shown to decrease lumbar pain, improve maternal mental health, and improve delivery outcomes. While there are many well-established benefits of yoga, the mechanism by which yoga elicits these improvements is unclear. One potential mechanism that has not been studied is through improvements in hip mobility. PURPOSE: The purpose of this study was to test the effect of prenatal yoga on hip mobility. The secondary aim was to determine the relationship between hip mobility and pregnancy outcomes. METHODS: Hip mobility via hip internal and external range of motion and hip flexor muscle length was measured in pregnant females …

Integrating Of The Unesco Digital Teacher Course In The Teacher Education Program: A Case Of Aku-Ied Med Program, Esther Kibga, Oluwakemi Olurinola, Fredrick Mtenzi

Institute for Educational Development, East Africa

Purpose:

This study planned to explore the effect of the UNESCO advanced educator course in the M.Ed. instructor training program at the Aga Khan College, Dar es Salaam specifically on digital pedagogical competency.

Methodology:

The research study employed a pre-experimental research design and fifty-nine (59) Aga Khan University M. Ed Education students from the three East African countries were involved. The research instruments involved in this study include a competency level rating scale (SelfieForTeachers) and a pre-post-training survey.

Findings:

The findings revealed the influence of the UNESCO Digital Teacher course on enhancing participants' digital pedagogical competencies, with a specific emphasis …

Dr. Eve Hinman, A Pioneer In The Protective Design Industry, Ily Michi Nelson, Ellen Elizabeth Untalan, Lani Ku'ulei Alo

Architectural Engineering

This senior project carries on prior work to develop an educational material on the notable female protective design engineer Dr. Eve Hinman, initiated by Cal Poly Architectural Engineering students Michelle Dennin and Paulina Robles in collaboration with faculty member Dr. Anahid Behrouzi. To gain a deeper understanding of Dr. Eve Hinman’s impact on the industry, the project team conducted extensive research into her career including interviews with former employees of the firm that she founded and led, Hinman Consulting Engineers (HCE), and an analysis of the recently acquired collection of library material gifted by HCE to Cal Poly. After completing …

Labour Companionship And Respectful Treatment Of Women During Childbirth: A Cross-Sectional Study Across 16 Hospitals In Benin, Malawi, Tanzania And Uganda, Soha El-Halabi, Kristi Sidney Annerstedt, Christian Agossou, Fadhlun Al-Beity, Andrea B. Pembe, Phillip Wanduru, Bianca Kandeya, Jean-Paul Dossou, Helle Molsted-Alvesson, Claudia Hanson

Centre of Excellence in Women and Child Health

Introduction: Evidence suggests that women value and benefit from having a labour companion during childbirth. However, the applicability of the evidence to low-income and lower-middle-income countries is limited and varies. Thus, we assessed the association between the presence of labour companions and mistreatment in 16 hospitals of Benin, Malawi, Tanzania and Uganda.

Methods: We conducted a cross-sectional survey using a validated questionnaire administered to women at discharge after birth between December 2021 and March 2024. The main outcomes were factor-weighted respectful treatment score and its subscores on maintained respect and dignity, privacy and maintained confidentiality and no physical and verbal …

Hematological Parameters In Recent And Past Dengue Infections In Jazan Province, Saudi Arabia, Abdulrahim Hakami, Ryhanh Tomehi, Ahmad A. Irekeola, Gasim Dobie, Sultan Alasmari, Mohammed Makkawi, Yahya Matari, Ahmed Mohammed, Ahmad A. Alshehri

Saudi Medical Journal

ABSTRACT Objectives: To analyze hematological parameters for potential predictive markers of dengue. Methods: Blood samples were obtained from 146 individuals suspected of having dengue at 2 hospitals in Jazan, Saudi Arabia. Control samples were concurrently collected from healthy adults (n=59). Samples were screened for anti-dengue antibodies by employing enzyme-linked immunosorbent assay. Hematological parameters, such as hemoglobin (HGB), white blood cells, hematocrit (HCT), platelets count, and red blood cells (RBCs) levels were determined for the dengue positive samples and all the controls. Results: Of the patients examined, 15% were dengue immunoglobulin M positive and 25% were immunoglobulin G positive. Dengue-infected patients …

Generative Ai In South African Healthcare: Navigating Challenges And Harnessing Opportunities For Industry And Research, Linda Paul, Ravinder Rena

Management Dynamics

This research seeks to evaluate how Generative Artificial Intelligence (GAI) can be used to disrupt and revolutionise the South African healthcare sector in addressing anomalies and utilising opportunities. This study employed a qualitative approach using secondary data analysis, drawing on policies formulated from the years 2015-2024, the study combines findings from published literature, institutional reports, and reputable databases to explore the potential opportunities, applications, and challenges of integrating generative artificial intelligence (AI) in South Africa's healthcare system. Thematic analysis and trend mapping were used to investigate GAI in diagnostics, drug discovery, personal medicine, data clerking, and medical training. The results …

Developing Predictive Mathematical Model For Optimizing Coating Weight Variation In Galvalume Production: A Case Study Of A Metal Industry, Victoria Mahabi

Tanzania Journal of Engineering and Technology (TJET)

Variations in coating weight for galvanized steel sheets can result in notable differences between batches. Such variations may cause various issues, such as diminished corrosion resistance, lower mechanical strength, and visual defects, which can ultimately drive-up costs, lead to customer dissatisfaction, and pose safety risks. Even with attempts to manage elements like air knife pressure and line speed, coating weight inconsistencies remain challenging. The research focuses on developing a predictive mathematical model designed to optimize variations in coating weight during Galvalume production. The critical parameters influencing coating weight variation were identified and analysed using a systematic literature review, primary data …

Comparative Analysis On Design Error Risks In Design-Bid-Build And Design-Build Construction Approaches, Eradius Edward Rwakarehe

Tanzania Journal of Engineering and Technology (TJET)

This study was conducted to compare design errors risk in Design-Bid-Build (DBB) (traditional) and Design-Build (DB) methods in building projects. Several construction projects under both DB and DBB method were reviewed. On most of construction projects under DB method, it was found that there were over supply of floor area due to different reasons. Also, it was found that, clients’ requirements were changed during project execution, which resulted into change on schedule, contract value and project quality. It was also revealed that in most cases, designs were in accordance with the clients’ requirements as submitted earlier but during construction clients …

Investigation Of The Electrical Capacitance Tomography System For Determining The Spatial Distribution Of Moisture In Grain Storage, Shamte J. Kawambwa

Tanzania Journal of Engineering and Technology (TJET)

Excessive moisture content (MC) in stored grains promotes the growth of fungi and molds, which affects the quality of the grains. Effective grain monitoring methods are essential for detecting and managing grain spoilage. Electromagnetic imaging (EMI) techniques provide a promising alternative to traditional techniques by visualizing the spatial distribution of moisture within grains rather than merely average MC values offered by traditional techniques. However, existing EMI approaches often use hard-field waves, which are expensive and fragile. This study introduces an Electrical Capacitance Tomography (ECT) system that employs soft-field waves to monitor the moisture content of the grains. The system was …

Cellulose Recovery From Waste Denim Fabrics Through Indigo Vat Dye Reduction And Spandex Dissolution, Tito N. Venance

Tanzania Journal of Engineering and Technology (TJET)

This study addresses environmental conservation by tackling end-of-life management for post-consumer denim garments through the recycling of cotton fibres from waste denim. The purification process involved dithionite reduction of vat dyes in the presence of an alkali followed by selective dissolution of spandex using N,N-dimethylformamide (DMF). Optimal conditions for dye removal were determined at 90°C for 120 minutes with sodium hydroxide at 25 g/L, sodium dithionite at 6 g/L and PVP at 4.5 g/L, while spandex extraction was achieved using a 5% DMF solution at 70°C for 4 hours. Ultraviolet (UV)-vis spectrophotometric analysis indicated a significant increase in whiteness (DL*). …

A Fuzzy Based Framework For Sustainable Technology Selection In Small-Scale Gold Mining Operations, John M. Kafuku

Tanzania Journal of Engineering and Technology (TJET)

Small-scale gold mining (SSGM) operations in Tanzania has been operating inefficiently due to inadequate mining processing technologies, poor working tools, lack of enough capital, and insufficient electricity. Despite the efforts made by different stakeholders in boosting the sustainability of SSGM yet the sector has not reached the expected goal. This paper proposes a framework for appropriate technology selection to help small scale gold miners in evaluating various gold mineral processing technologies. The framework utilizes the fuzzy logic set theory for technology evaluation and selection. The developed framework for technology selection upon validation provided results that technology adequacy of more than …

Microwave Ore Pre-Treatment Review And Process Flowsheet Conceptualization, Baker F. Giyani

Tanzania Journal of Engineering and Technology (TJET)

The global demand for mineral commodities has increased dramatically over the years, and this is largely due to several factors, including technological advancements, industrialization, and a rise in population. Further, the demand keeps increasing because the ore being mined is becoming more complex, and the feed grade is declining over the years, prompting the need for innovative technologies to treat such ores more efficiently. Microwave ore pre-treatment is one of the potential technologies that can be employed to improve process performance. This is possible because ores are composed of both good-microwave heaters and poor microwave heaters, which creates thermal stresses …

Assessment Of Factors Contributing On Early Rotting Of Chromated Copper Arsenate Treated Utility Power Distribution Wood Poles In Tanzania, Innocent J. Macha

Tanzania Journal of Engineering and Technology (TJET)

The study aimed to assess the factors contributing to the premature decay of Chromated Copper Arsenate (CCA) treated utility power distribution wooden poles in Tanzania. Deteriorated poles samples from various regions in Tanzania were analyzed using handheld X-ray spectrometry to quantify the retention of CCA preservative chemicals. The ages of these poles were estimated based on annual growth rings. The findings indicated that premature failure of CCA treated wooden poles is attributed to an imbalance in the chemical composition of the preservative solution. The study found that CuO retention in most samples ranged between 10-18 kg/m3, significant lower that the …

Improving Image Quality In Electrical Capacitance Tomography Using Otsu Thresholding, Josiah Nombo

Tanzania Journal of Engineering and Technology (TJET)

Electrical Capacitance Tomography (ECT) is an imaging technique used in industrial process monitoring, particularly for monitoring and measuring the composition of multiphase flows. Despite its widespread application, the commonly used Linear Back Projection (LBP) algorithm often produces low-quality images due to its limited ability to handle high permittivity contrasts and nonlinearities. This study investigates the use of Otsu thresholding as a post-processing technique to enhance ECT image quality. By maximizing inter-class variance in the image histogram, Otsu thresholding improves contrast, clarity, and structural definition, enabling more effective segmentation of oil and gas components in multiphase flows. The proposed Otsu-based reconstruction …

Influence Of Substrate Temperature On The Properties Of Reactive Dc Magnetron Co-Sputtered Ag-Doped Tio2 Thin Films, Hezekiah B. Sawa

Tanzania Journal of Engineering and Technology (TJET)

This study reports on the influence of substrate temperature on the properties of Ag-doped TiO2 thin films. The films were deposited by reactive DC co-sputtering of Ti and Ag targets at different substrate temperatures and Ag target sputtering powers. Grazing incident X-ray diffractometer confirmed that all films were polycrystalline with dominant peak oriented along (101) planes representing the anatase TiO2 phase. The average grain size of the samples improved with increase in deposition temperature. At a substrate temperature of 450 ℃, the samples had a dominant peak representing the rutile phase, suggesting partial transformation from anatase to rutile phase. The …

A Critical Realist Erp Implementation In Zimbabwean Mining Industry Organisations, Jairos Mukwenha

Tanzania Journal of Engineering and Technology (TJET)

This research uses a critical realist framework to examine the factors influencing the success of enterprise resource planning (ERP) system implementation in Zimbabwean mining industry organisations. From the perspective of critical realism, the mining industry in Zimbabwe faces a complex interplay of opportunities and obstacles while implementing ERP systems. The deployment of ERP in mining firms is critically examined in this paper, emphasising how these systems might improve operational efficiency while considering Zimbabwe's particular socioeconomic circumstances. By exploring underlying structures, mechanisms, and outcomes, the research aims to identify critical challenges and opportunities and develop practical recommendations for improving ERP adoption …

Development Of A Microcontroller-Based Intelligent Traffic Light Control System For Vehicular Movement In T-Junctions, Frederick O. Ehiagwina

Tanzania Journal of Engineering and Technology (TJET)

This research is devoted to the issue of regulating traffic congestion in major cities using light-dependent resistors coupled with the PIC16F877A microcontroller. This study proposes an intelligent traffic control system for T-Junctions, utilizing sensing and control to optimize traffic flow through dynamic phase adjustments and congestion reduction, enabled by a microcontroller-based decision-making system. The proposed system reduces traffic congestion, automates control, and enhances safety, minimizing accidents and lowering infrastructure costs. Under simulated environment, it demonstrates an average response time of 50 ms and achieves 99% accuracy in displaying the correct countdown. Finally, the number of state transitions handled per minute …

Design And Performance Analysis Of Fiber Bragg Grating Temperature Sensor For Industrial Processes Sensing Applications, Paul Stone Stone Brown Macheso S.B.

Tanzania Journal of Engineering and Technology (TJET)

The Fiber Bragg Grating (FBG) sensor has become a widespread sensing device because of its small size, passive design, immunity to electromagnetic interference, and direct ability to measure physical properties like temperature and strain. Recently, femtosecond infrared laser processing and regeneration techniques have resulted in the development of stable high-temperature gratings, which are a powerful tool in smart factories, an aspect of the fourth Industrial Revolution (4IR), and show promise for application in harsh environments like high pressure, high temperature, or ionizing radiation. The development of stable high-temperature gratings that can withstand harsh environmental factors like high temperatures, pressures, and …

Application Of Artificial Neural Network Models For Predicting Diesel And Petrol Prices In The Geographically Sparsed Regions In Tanzania, John M. Kafuku

Tanzania Journal of Engineering and Technology (TJET)

Fuel consumption in Tanzania, mainly diesel and petrol, accounts for 82 percent of the energy consumption in the country, with significant price volatility affecting market stability, availability of fuel, and investment decisions. This study uses an artificial neural network (ANN) with a backpropagating algorithm to predict fuel prices in four regions of Tanzania. Key input parameters include the currency inflation rate (CIR), the petrol fuel inventory (PFI), the diesel fuel inventory (DFI), and the fuel transport costs (FTC). The study selected the 6-10-10-2 ANN structures for Sumbawanga-Rukwa, Mpanda-Katavi, and Mbeya-Mbeya as well as 6-10-9-2 for the Songea-Ruvuma region. The results …