Digital Commons Network^™

Illicit Trafficking Of Radioactive Sources: Experiences With Fake Materials In Tanzania, Iddi Mkilaha

Tanzania Journal of Engineering and Technology (TJET)

Radioactive materials although are very useful, they are one of the catastrophic sources of mass destruction if misused. These materials have a number of positive uses which makes them very essential in our modern society. Incidences such as the bombings of the US Embassies in East Africa, the September 11, and many others had formed a basis for international responsive actions to control illicit trafficking of Radioactive and Nuclear Materials. The aim of this work is to track the movements and subsequently uses of these materials. Tanzania is one of the countries where International Nuclear Safeguards protocols are fully operational …

Flotation Circuit Performance Determination Using Size By Size Recovery – Case Of Bulyanhulu Gold Mine, Savinus Maronga

Tanzania Journal of Engineering and Technology (TJET)

The Bulyanhulu rougher flotation circuit performance has been determined by establishing the performance of individual cells. Direct sampling was done on all the rougher cell input, output and size analysis was performed on the samples with material in each size fraction assayed for copper and gold to determine their recoveries. It was observed that the performance of rougher cell number 3 and 4 was poor compared to other cells especially for finer particles below 53 µm where the recoveries were below 60%. In the last two flotation cells recoveries of both metals was very good (above 90%) in all particle …

Universal Design Of Transportation Systems: A Case Study Of Access And Mobility Of People With Disabilities At Selected Intersections In Dar Es Salaam, Nurdin Mushule

Tanzania Journal of Engineering and Technology (TJET)

The pedestrian facilities at intersections must be usable by pedestrians of all ages and capabilities. Intersections in particular must be designed to safely accommodate pedestrians of all ages and physical and mental abilities. Often, however, intersection designs fail to accommodate people with visual and mobility disabilities. In this regard, for pedestrians with disabilities, intersections can prove to be a challenge. Some of those challenges include provision of insufficient pedestrian clearance time due to use of inappropriate design pedestrian speed. Most importantly, the required facilities to enable People With Disabilities (PWD) to use the intersection without hindrance may be missing. Obstacles …

Optimized Production Of Lignin Peroxidase, Manganese Peroxidase And Laccase In Submerged Cultures Of Trametes Trogii Using Various Growth Media Compositions, F. Patrick, G. Mtui, A. M. Mshandete, A. Kivaisi

Tanzania Journal of Science

A white-rot fungus, Trametes trogii, was isolated from coastal Tanzania and screened for crude lignolytic enzymes production using Rhemazol Brilliant blue R (RBBR) dye, 2,2-azino-bis (3-ethylbenzthiazoline)-6-sulfonate (ABTS) and guaiacol in a semi-solid medium. Lignin peroxidase (LiP), manganese peroxidase (MnP) and Laccase (Lac) were detected by pyrogallol and !- napthol solutions, respectively on the guaiacol supplemented solid media. The effect of temperature, pH, carbon, nitrogen, Cu2+, 2,5-xylidine, ferulic acid, varatryl alcohol and Mn2+ in submerged culture fermentations were investigated for maximum enzymes production. After 7 days of incubation, 72-100% oxidation of RBBR, ABTS and guaiacol was observed. With optimized culture conditions, …

Effects Of Mulching, Fertilizer, Seeding And Seedling Treatments On Plant Species Recovery In Kondoa Irangi Hills, Tanzania, H. V. M. Lyaruu

Tanzania Journal of Science

Fertilization, mulching, imported seed bank seeding and seedlings were applied to triplicates of 1m x1m plots at Chakwe and Gubali sites in Kondoa Irangi Hills, Tanzania. Responses tested were seedling recruitment, species turnover, species’ biomass, mortality of seedlings, total number of perennial and woody species recruited and leguminous species. There were high significant correlations of 0.85 and 0.87 between seedling recruitment and mortality in both sites, indicating that other factors, probably aridity, rather than prevailing site conditions were likely to be important determinants of mortality. Inorganic fertilization was not an efficient means of improving short-term productivity, seedling recruitment or increased …

Phylogenetic Relationships Of The Metazoan Parasites Of The Clariid Fishes Of Lake Victoria Inferred From Partial 18s Rdna Sequences, C. J. Mwita, G. Nkwengulila

Tanzania Journal of Science

Phylogenetic relationships among twenty two metazoan parasites recovered from seven species of clariid fish from Lake Victoria were analysed using partial 18S rDNA sequences. The 18S rDNA gene was amplified by polymerase chain reaction, directly sequenced, aligned and phylogenies inferred using maximum parsimony. Heuristic bootstrap MP searches yielded one most parsimonious tree (CI = 61%, HI = 39%), which showed that clariid parasites are monophyletic at higher taxonomic levels (Cestodea, Nematodea, Digenea and Crustacea). However the position of two trematodes (Allocredium mazoensis and Clinostomum sp.) and a nematode (Contracaecum sp.) were not stable. Despite the present findings, the study utilised …

Heavy Metal Levels In Paddy Soils And Rice (Oryza Sativa (L)) From Wetlands Of Lake Victoria Basin, Tanzania, J. F. Machiwa

Tanzania Journal of Science

A survey of paddy fields in Lake Victoria Basin (LVB) wetlands was conducted at a wider scale in different locations including closer to mining and within urbanized areas in Tanzania. The objective of the study was mainly to assess the present situation with regard to levels of heavy metals in O. sativa grains harvested locally as well as to set the baseline levels of some heavy metals in paddy fields. The results showed that the levels of Cadmium, Chromium, Copper, Lead, Zinc and total Mercury in brown rice are generally within the acceptable levels for human food. However, higher concentration …

Urban Dietary Heavy Metal Intake From Protein Foods And Vegetables In Dar Es Salaam, F. N. Ngassapa, O. C. Othman, E. Elisante

Tanzania Journal of Science

Contamination of food and food products by heavy metals has made dietary intake as one of the major routes of these harmful elements to human beings. The human dietary intake of heavy metals cadmium, copper, lead and zinc from protein-foods (beans, meat, fish, milk) and green vegetables consumed daily from restaurants and street food-vendor kiosks in Dar es Salaam were determined using the Total Diet Study (TDS) method. The cooked food was bought from the restaurants and street food-vendors at several city locations (i.e. Buguruni, Manzese, Mwenge, Temeke and Ubungo) over several months and analyzed. Heavy metal concentrations were determined …

Djibouti Code Of Conduct : An Instrument To Suppress Piracy In The Western Indian Ocean And The Gulf Of Aden, Dave Muli

World Maritime University Dissertations

No abstract provided.

The Major Cause Of Observed Erosion Surge On The Beaches North Of Dar Es Salaam City, N. Nyandwi

Tanzania Journal of Science

Surges in coastal erosion north of Dar es Salaam city have been documented from 1977 to the early 1980s and around 1997/98. Analysis of the wind data shows that the documented increase in coastal erosion coincided with increased wind speeds. Extreme winds in excess of 10-11 m s-1 were experienced during 1976-78, 1984 and after 1996. Their coincidence with extreme high tides produced the high erosion rates. Using beach profile data for the years 1998-2000 the evolution of the beach profile with the changing monsoon winds and sediment input by rivers could be demonstrated. The beach erosion took place during …

Geomorphological Potential Of Coelacanth Habitat Across Mozambique-Tanzania Border, N. Nyandwi

Tanzania Journal of Science

The coelacanth is a new fish in Tanzania. It was first discovered in September 2003 after it was spotted by a tourist in a fish market. It was caught by fishermen in the deep waters off Songo Mnara Island offshore of Kilwa Masoko Town in Southern Tanzania. The find potentially added southern Tanzania to the list of known coelacanth areas of the southern Western Indian Ocean Region. Observed current conditions indicate that the waters are swept by strong (2 m/sec) northward flowing current. This suggests that there must exist hideouts for the fish, such as caves in canyons and overhangs. …

Analysis Of Factors Affecting Technological Innovativeness In Engineering Enterprises In Tanzania, Emanuel Mjema

Tanzania Journal of Engineering and Technology (TJET)

This paper discusses the technological innovativeness in engineering enterprises in Tanzania and analyses the factors affecting the innovativeness. It starts by analyzing various concepts regarding innovation, then analyzed from documentary review factors affecting innovativeness and then analyzed the innovativeness in Tanzanian enterprises. From the documentary review it was learnt that the following key factors influence technological innovativeness: Existence of innovation management; Existence of market to absorb the products of innovation; Existence of partnership between the universities and the firms; Existence of positive culture and politics towards innovation; The government playing its role to influence innovation; Existence of the right knowledge; …

The Global Debate On Budgeting: Empirical Evidence From Nigeria, Abogun Segun, Fagbemi Temitope Olamid

Business Management Review

Empirical evidence from developed economies provides that budgeting is a veritable tool for planning, controling, coordinating, communicating, evaluating and improving performance and decision making. On the other hand, some experts have mounted wide-ranging criticism of the manner in which budgetary systems are typically implemented. It is claimed that budgeting is not a worthwhile exercise, adds no value to organizations, managers are dissatisfied with it, and therefore it should be abandoned. However, the main focus of this research is to provide empirical evidence from a developing economy on the relevance of the budgetary system. A primary source of data was used …

Commodity Trade Potential In Tanzania: What Went Wrong With The Mineral Sector?, Petro Sauti Magai

Business Management Review

This paper analyses the facts causing the mineral sector to make less of a contribution to the country ' s economy. Although the sector accounts for nearly half of the country ' s exports, ordinary Tanzanians are not benefiting from this because the government has implemented tax laws that overly favour multinational mining companies. Companies claim to make loss and so avoid paying taxes although they still invest in the country The system is also perceived to be lacking transparency. It is argued that the combined loss to the country is a result of low royalty rates, unpaid corporation taxes …

Making Business Process Reengineering (Bpr) Programmes Work: Case Of Kamal Steel Company, George S. Mwaluko

Business Management Review

It has been shown that improvement in sales revenue obtained through the implementation of Business Process Reengineering (BPR) programmes is ten times the improvement realised through the implementation of Total Quality Management programmes. However, the failure rate of BPR programmes has been shown to be high, about 70%. Most writers have confined themselves to identifying the causes of the failure of BPR programmes. The author argues that the high failure rate of BPR programmes is caused by the fact that the development of their implementation frameworks is not based on the causes of failure of BPR programmes. In this paper …

Determination Of Level Of Imports In The Construction Industry In Tanzania, Robert Suphian

Business Management Review

The construction industry has to be competitive and be able to undertake most of the construction projects in Tanzania and export its services and product according to the Tanzania construction policy. This is contrary to the fact that the industry is dominated by Foreign Service providers to the tune of approximately 70 percent in terms of market share. This study employed an econometric model estimation to answer the question of what determined import for construction services in Tanzania for the period 1985-2008. The Ordinary Least Square technique was adopted and applied for regression analysis using Stata 10 software. The findings …

Demand For Accountants In Botswana: Views Of Employers, Christian J. Mbekomize

Business Management Review

The objective of this study was to explore the problem of shortage of accountants in Botswana in order to establish which types of accountants are in short supply, identify the sector of the economy which has been most affected by the shortage and find out how this shortage could be curtailed. A survey of the views of employers of accountants revealed the vacancy rate of professional accountants in Botswana as 15% of the establishment, with that the ratio of local to expatriate accountants about 1:1. These findings do not support the findings by the Botswana Institute of Accountants in 2009, …

African Water: An Experience With Project Management In Bulima, Tanzania, Robert Sharp

Honors Theses

Details the author's experiences researching, designing, and implementing a water system for a boarding school in Africa.

Economic Analysis Of Small Scale Sorghum Processing In Dar Es Salaam, Tanzania, Jeremia Makindara, Joseph J. Mpagalile, Wenceslaus Ballegu

INTSORMIL Presentations

Due to small scale food processing initiatives, several entrepreneurs dealing in small scale sorghum processing have emerged in Tanzania and especially in urban centers such as Dar es Salaam. The recent initiative that has contributed to this is the SUA-INTSORMIL Project that started in 2005. However, despite such initiatives being received by many entrepreneurs, very few economic studies have been conducted to assess the benefits obtained by sorghum processing entrepreneurs and the challenges they face are not well explained. This study therefore assessed costs and benefits obtained by small scale sorghum processing entrepreneurs in Dar es Salaam and the challenges …

Associations Between Alcohol Misuse And Risks For Hiv Infection Among Men Who Have Multiple Female Sexual Partners In Cape Town, South Africa, Loraine Townsend, Samantha R. Rosenthal, Charles D.H. Parry, Yanga Zembe, Catherine Mathews, Alan J. Flisher

Health & Wellness Department Faculty Publications and Research

No abstract provided.

Developing Entrepreneurship, The Tanzania Experience: Sua-Intsormil Project, Joseph J. Mpagalile, Wenceslaus R. Ballegu

INTSORMIL Presentations

Project Title: Building a Sustainable Infrastructure for Product Development and Food Entrepreneur/Industry Technical Support: A Strategy to Promote Increased Use of Sorghum and Millet in East Africa.

Long Term Program Objectives: Development of successful entrepreneurial businesses that add-value to sorghum and millet such that:

~Farmers have an established outlet for cash sales of high-quality sorghum and millet

~Small businesses or cooperatives develop processing capabilities enabling the incorporation of sorghum and millet into a wide variety of food products

~Markets and market channels for sorghum and millet-based products develop.

Further develop research, extension and marketing expertise of National Agricultural Research Institutes …

Analysis And Evaluation Of Safety Impacts Of Median Types And Midblock Left Turn Treatments For Urban Arterials, Timur Mauga

UNLV Theses, Dissertations, Professional Papers, and Capstones

Urban growth leads to new land-uses abutting arterials requiring driveways for their accessibility. Uncontrolled number and locations of such access points causes safety, mobility and accessibility problems. The solution to these problems is access management (AM) which controls the number and location of the access points. AM techniques are normally documented in the form of guidelines for engineers and planners to follow when implementing the techniques. However, AM guidelines may not cover every technique due to the fact that AM is still growing. For example, the current AM guideline prepared by The Nevada Department of Transportation addresses many AM techniques. …

The Determinants Of Colorectal Cancer Survival Disparities In Nevada, Lucas N. Wassira

UNLV Theses, Dissertations, Professional Papers, and Capstones

Different population groups across Nevada and throughout the United States suffer disproportionately from colorectal cancer and its after-effects. Overcoming cancer health disparities is important for lessening the burden of cancer. There has been an overall decline in the incidence of and mortality from colorectal cancer (CRC). This is likely due, in part, to the increasing use of screening procedures such as Fecal Occult Blood Test (FOBT) and/or endoscopy, which can reduce the risk of CRC mortality by fifty percent. Nevertheless, screening procedures are routinely used by only fifty percent of Americans aged fifty years and older. Despite overall mortality decreasing …

Conservation From The Bottom-Up: Human, Financial, And Natural Capital As Determinants Of Resilient Livelihoods In Kigoma Rural, Tanzania, Yared J. Fubusa

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Rhetoric of "community-based conservation" has gained prominence among development specialists and environmentalists, yet such projects are often implemented from the top-down in Africa. This dissertation contends that only a bottom-up approach can foster resilient livelihoods and environmental stewardship.

This study focused on determinants of household resilience within a poverty-stricken agricultural community near Gombe Stream National Park (GSNP) in western Tanzania. The research purpose was to explore: 1) relationships between villagers and GSNP management; 2) how groups and individuals view priority livelihood problems and solutions; 3) various attributes of households; and 4) perceived trends for household resilience and how these are …

Medical Schools In Sub-Saharan Africa, Fitzhugh Mullan, Seble Frehywot, Francis Omaswa, Eric Buch, Candice Chen, S. Ryan Greysen, Tenagne W. Haile-Mariam, +30 Additional Authors

Health Policy and Management Faculty Publications

Small numbers of graduates from few medical schools, and emigration of graduates to other countries, contribute to low physician presence in sub-Saharan Africa. The Sub-Saharan African Medical School Study examined the challenges, innovations, and emerging trends in medical education in the region. We identifi ed 168 medical schools; of the 146 surveyed, 105 (72%) responded. Findings from the study showed that countries are prioritising medical education scale-up as part of health-system strengthening, and we identifi ed many innovations in premedical preparation, teambased education, and creative use of scarce research support. The study also drew attention to ubiquitous faculty shortages in …

Mugabe’S Zimbabwe, 2000–2009: Massive Human Rights Violations And The Failure To Protect, Rhoda E. Howard-Hassmann

Political Science Faculty Publications

This article reviews human rights violations in Zimbabwe from 2000 to 2009, under the rule of Robert Mugabe. It argues that these violations, including state-induced famine, illegal mass expulsions, and systemic rape, constituted crimes against humanity. This article considers what African regional organizations, including the African Union and the Southern African Development Community, and various organs of the international community did, and might have done, to restrain Mugabe and his inner circle from committing these violations. It concludes that the lack of forceful action by African and international organizations constituted a failure to protect the people of Zimbabwe.

Building Capacity For Public And Population Health Research In Africa: The Consortium For Advanced Research Training In Africa (Carta) Model, Alex C. Ezeh, Chimaraoke O. Izugbara, Caroline W. Kabiru, Sharon Fonn, Kathleen Kahn, Lenore Manderson, Akinyinka Omigbodun, Margaret Thorogood, Ashiwel S. Undieh

Publications and Research

Background: Globally, sub-Saharan Africa bears the greatest burden of disease. Strengthened research capacity to understand the social determinants of health among different African populations is key to addressing the drivers of poor health and developing interventions to improve health outcomes and health systems in the region. Yet, the continent clearly lacks centers of research excellence that can generate a strong evidence base to address the region’s socio-economic and health problems. Objective and program overview: We describe the recently launched Consortium for Advanced Research Training in Africa (CARTA), which brings together a network of nine academic and four research institutions from …

An Exploratory Survey Of Drivers’ Knowledge Of Right Of Way At Freeway On-Ramp Merging Areas, Deogratias Eustace, Stephen Owusu-Ansah, Vamsi Krishna Indupuru

Civil and Environmental Engineering and Engineering Mechanics Faculty Publications

Motor vehicle crashes are one of the leading causes of death in the United States. The most recent data available show that in 2006 there were almost 6 million police-reported motor vehicle crashes in the United States where a total of 42,642 people were killed and an additional 2.6 million were injured. The majority of these motor vehicle crashes occurred at intersections or within the intersection influence areas. Traffic conflicts occur at intersections due to traffic streams moving in different directions interfering with each other, and as a result they become areas with high potential for traffic crashes compared with …

The Utah Statesman, October 13, 2010, Utah State University

The Utah Statesman

Weekly student newspaper of Utah State University in Logan.

Money, Power And Landscapes Of Consumption, Ana Miscolta-Cameron

Geography Capstone Projects

This paper explores the phenomenon of national parks and reserves in Tanzania as a product of early colonial ideology and the evolution of that ideology into a post-independence capitalist enterprise. Serengeti National Park, Selous Game Reserve and the Ngorongoro Conservation Area are examined as historically contested sites in which indigenous people have been denied customary use rights by successive regimes of power keen on profiting through resource exploitation and tourism. Though this paper’s focus is Tanzania, it attempts to reveal a pattern of colonial and neo-colonial environmentalism widespread throughout the developing world.