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Articles 61 - 90 of 189
Full-Text Articles in Entire DC Network
Assessment Of Groundwater Quality In Areas Surrounding Thundulu Phosphate Mine, Phalombe District, Malawi, Philip Jailos, Peter J. Chimtali, Ephraim Vunain
Assessment Of Groundwater Quality In Areas Surrounding Thundulu Phosphate Mine, Phalombe District, Malawi, Philip Jailos, Peter J. Chimtali, Ephraim Vunain
Tanzania Journal of Science
Water is one of the renewable resources essential for sustaining all forms of life and quality of drinking water is very fundamental for human health. Human activities such as mining act as sources of water contamination which consequently lead to ecological, environmental and health problems. To the best of our knowledge, no study has been conducted around the Thundulu Phosphate Mine to establish the quality of drinking water. In this regard, this study was carried out to evaluate the physico-chemical water quality parameters of areas surrounding the Thundulu Phosphate Mine in Phalombe District. Groundwater samples from the villages surrounding the …
Current State Of Seagrasses In Zanzibar: Impacts Of Coastal Economic Activities And Marine Protected Areas On Seagrass Cover, Danielle Purvis, Narriman Jiddawi
Current State Of Seagrasses In Zanzibar: Impacts Of Coastal Economic Activities And Marine Protected Areas On Seagrass Cover, Danielle Purvis, Narriman Jiddawi
Capstone Collection
Seagrass meadows are located abundantly in Zanzibar, Tanzania and provide essential ecosystem services, such as sediment nutrient enrichment and blue carbon sequestration. However, seagrasses have been less researched or protected than other marine ecosystems. Although environmental variables affect seagrass health, evidence suggests that anthropogenic impacts are their greatest threats. The rapid expansion of seaweed farming and tourism and widespread use of harmful small-scale fishing practices in Zanzibar have contributed to the degradation and removal of seagrass meadows, disrupted coastal marine food chains, and reduced local biodiversity that seagrasses support. Public or private marine protected areas (MPAs) protect most of Zanzibar’s …
Copper Slag As A Potential Waste Filler For Polyethylene-Based Composites Manufacturing, Aleksander Hejna, Paulina Kosmela, Mateusz Barczewski, Olga Mysiukiewicz, Adam Piasecki
Copper Slag As A Potential Waste Filler For Polyethylene-Based Composites Manufacturing, Aleksander Hejna, Paulina Kosmela, Mateusz Barczewski, Olga Mysiukiewicz, Adam Piasecki
Tanzania Journal of Science
The present study aimed to analyze the application of waste material from copper production– copper slag (ŻŻL) as filler for composites based on the high-density polyethylene (HDPE). Copper slag filler was introduced in the amounts of 1–20 wt%, and its influence on the appearance (color analysis), chemical structure (Fourier-transform infrared (FTIR) spectroscopy), microstructure (optical microscopy), as well as static (tensile tests) and dynamic (dynamical mechanical analysis (DMA)) mechanical properties of composites were investigated. Proper dispersion of filler implicated that the incorporation of up to 5 wt% of filler caused only slight, 5% drop of tensile strength, with the simultaneous 16% …
Biodiesel Production By Esterification Of Ricinoleic Acid Over A Series Of Synthesized Sulfated Zirconia Catalysts, Elianaso Elimbinzi, Stephen S Nyandoro
Biodiesel Production By Esterification Of Ricinoleic Acid Over A Series Of Synthesized Sulfated Zirconia Catalysts, Elianaso Elimbinzi, Stephen S Nyandoro
Tanzania Journal of Science
A series of sulfated zirconia (SZ) were synthesized and evaluated for catalytic esterification of ricinoleic acid obtained from the castor oil with butanol at 110 °C. The effect of alcohols’ chain length was studied using butanol (C4), propanol (C3), ethanol (C2) and methanol (C1) at 65 °C, and reflux of corresponding alcohol boiling points. The synthesized catalysts were characterized using nitrogen porosimetry, X-ray powder diffraction, thermogravimetric analysis and Diffuse Reflectance Infrared Fourier Transform Spectroscopy. Analysis of ricinoleic conversion was performed using gas chromatography. Sulfuric acid loading improved the surface area of zirconia at a lower dose. The surface areas of …
Effectiveness Of Common Household Washing Of Tomatoes On The Removal Of Pesticide Residues, John Mahugija, Flaviana Ngabala, Faustin Ngassapa
Effectiveness Of Common Household Washing Of Tomatoes On The Removal Of Pesticide Residues, John Mahugija, Flaviana Ngabala, Faustin Ngassapa
Tanzania Journal of Science
The effectiveness of common household washing processes of tomatoes on the removal of pesticide residues was investigated in Iringa, Tanzania. Analyses of cleaned-up extracts were carried out using gas chromatography-mass spectrometry (GC-MS). Nine pesticide residues were detected in unwashed and washed samples. The compounds detected were chlorothalonil, pirimiphos-methyl, chlorpyrifos, profenofos, endosulfan sulphate, endosulfan ether, lambda cyhalothrin, cypermethrin and metalaxyl. The concentrations of chlorothalonil, pirimiphos-methyl, chlorpyrifos, profenofos, cypermethrin and lambda cyhalothrin in some unwashed and washed samples exceeded the maximum residue limits (MRLs). Washing reduced the concentrations of chlorothalonil and endosulfan sulphate in tomatoes by 22.2–98.0% (mean = 70%) and 33.3–55.6% …
Climate, Vegetation, And Weathering Across Space And Time In Lake Tanganyika (Tropical Eastern Africa), Sarah J. Ivory, Michael M. Mcglue, Cara Peterman, Patrick Baldwin, Joseph Lucas, Andrew Cohen, James Russell, Justina Saroni, Emma Msaky, Ishmael Kimirei, Michael Soreghan
Climate, Vegetation, And Weathering Across Space And Time In Lake Tanganyika (Tropical Eastern Africa), Sarah J. Ivory, Michael M. Mcglue, Cara Peterman, Patrick Baldwin, Joseph Lucas, Andrew Cohen, James Russell, Justina Saroni, Emma Msaky, Ishmael Kimirei, Michael Soreghan
Earth and Environmental Sciences Faculty Publications
Climate and vegetation influence weathering rates and processes; however, evaluating the effects of each and feedbacks between systems, has yet to be accomplished for many types of landscapes. A detailed understanding of how these processes interact to shape landscapes is particularly crucial for reconciling future scenarios of changing climate, where profound alterations to both the biosphere and geosphere are anticipated. In the tropics, ecosystem services, such as soil and water quality, are linked to both vegetation and weathering processes that form a strong control on natural resources that are the foundation of many communities’ daily subsistence. This understanding is further …
Status Of Soil Transmitted Helminths Infection Among School-Going Children In Momba, Mbeya, Siame Zebius, Winifrida B. Kidima
Status Of Soil Transmitted Helminths Infection Among School-Going Children In Momba, Mbeya, Siame Zebius, Winifrida B. Kidima
Journal of Humanities and Social Sciences
This study conducted cross-sectional and retrospective studies to investigate the burden of intestinal helminths among school-going children in Momba. Direct wet mount and Kato-Katz thick smears techniques were used to determine the prevalence and intensity of intestinal parasites, respectively. Out of 359 stool samples analysed, 28% were positive for intestinal parasites. Hookworm infections attributed to 10% of total infection, Ascaris lumbricoides 6%, Giardia lamblia 7%, and Entamoeba histolytica 5%. The prevalence of intestinal infection decreased with increasing age (p < 0.5). Hookworm was the most prevalent STH infection among children (p = 0.048). There was an association between taking ant-helminthic drugs and the absence of helminth infection in children (OR = 1.9, p < 0.05). No relationship existed between parents’ education level and the presence of STH infection among children (p > 0.05). Overall, children in Momba harboured low intensity helminths infection. The mean intensity of hookworm and ascaris infection decreased with age, …
Corn Stover As Substrate For Biogas Generation And Precursor For Biosilica Production Via Anaerobic Digestion, Akinola D. Olugbemide, Lajide Labunmi, Ikhazuagbe H Ifijen, Damilare I. Ogungbemide
Corn Stover As Substrate For Biogas Generation And Precursor For Biosilica Production Via Anaerobic Digestion, Akinola D. Olugbemide, Lajide Labunmi, Ikhazuagbe H Ifijen, Damilare I. Ogungbemide
Tanzania Journal of Science
Production of fuels and chemicals from renewable biomass is crucial to sustainability of bio-based economy. In this study, anaerobic digestion of corn stover (CS) was carried out to produce biogas under mesophilic conditions. The study also investigated the potential of corn stover digestate ash as a potential source for biosilica production. A cumulative volume of 930 mL of biogas was produced with methane content of 85.87%. Higher and lower calorific values of biogas were calculated to be 36.30 MJ/m3 and 32.70 MJ/m3, respectively. Calcination of raw CS (RCS) and the digestate (CSD) was carried out at 600 °C for 3 …
Solar Irradiance And Enso Affect Food Security In Lake Tanganyika, A Major African Inland Fishery, Michael M. Mcglue, S. J. Ivory, J. R. Stone, A. S. Cohen, T. M. Kamulali, J. C. Latimer, M. A. Brannon, I. A. Kimirei, M. J. Soreghan
Solar Irradiance And Enso Affect Food Security In Lake Tanganyika, A Major African Inland Fishery, Michael M. Mcglue, S. J. Ivory, J. R. Stone, A. S. Cohen, T. M. Kamulali, J. C. Latimer, M. A. Brannon, I. A. Kimirei, M. J. Soreghan
Earth and Environmental Sciences Faculty Publications
Food security in a warming world is a grave concern for rapidly growing impoverished populations. Low-latitude inland fisheries provide protein for millions of rural poor, yet the impacts of high-frequency climate oscillations on these aquatic ecosystems are unknown. Here, we present a sub-annual-to-annual resolution paleolimnological reconstruction of upwelling, productivity, and algal composition at Lake Tanganyika, one of Africa's largest landlocked fisheries. The data reveal increases in diatom production at centennial-scale solar irradiance maxima, and interannual variability in upwelling linked to La Niña. Our study shows that interactions between global climatic controls and El Niño-Southern Oscillation teleconnections exert profound influences on …
A Nexus Between Carbon Emissions And Land Surface Temperature In The Six Ecological Zones Of Nigeria, Folasade Oderinde
A Nexus Between Carbon Emissions And Land Surface Temperature In The Six Ecological Zones Of Nigeria, Folasade Oderinde
Tanzania Journal of Science
The increase in the emission of carbon dioxide (CO2) in the atmosphere has been identified as a driving cause of global climate change which is a threat to the normal functioning of human and natural systems. Therefore, this study investigated the relationship between the emissions of CO2 and land surface temperature (LST) in the six ecological zones of Nigeria. High resolution satellite imageries of land surface temperature and carbon were downloaded from the website of the National Aeronautics and Space Administration (NASA) between January 2002 and December 2012 and were utilized for the study. The data were processed using Arc …
Icdp Workshop On The Lake Tanganyika Scientific Drilling Project: A Late Miocene–Present Record Of Climate, Rifting, And Ecosystem Evolution From The World's Oldest Tropical Lake, James M. Russell, Philip Barker, Andrew Cohen, Sarah Ivory, Ishmael Kimirei, Christine Lane, Melanie Leng, Neema Maganza, Michael M. Mcglue, Emma Msaky, Anders Noren, Lisa Park Boush, Walter Salzburger, Christopher Scholz, Ralph Tiedemann, Shaidu Nuru, Lake Tanganyika Scientific Drilling Project Consortium
Icdp Workshop On The Lake Tanganyika Scientific Drilling Project: A Late Miocene–Present Record Of Climate, Rifting, And Ecosystem Evolution From The World's Oldest Tropical Lake, James M. Russell, Philip Barker, Andrew Cohen, Sarah Ivory, Ishmael Kimirei, Christine Lane, Melanie Leng, Neema Maganza, Michael M. Mcglue, Emma Msaky, Anders Noren, Lisa Park Boush, Walter Salzburger, Christopher Scholz, Ralph Tiedemann, Shaidu Nuru, Lake Tanganyika Scientific Drilling Project Consortium
Earth and Environmental Sciences Faculty Publications
The Neogene and Quaternary are characterized by enormous changes in global climate and environments, including global cooling and the establishment of northern high-latitude glaciers. These changes reshaped global ecosystems, including the emergence of tropical dry forests and savannahs that are found in Africa today, which in turn may have influenced the evolution of humans and their ancestors. However, despite decades of research we lack long, continuous, well-resolved records of tropical climate, ecosystem changes, and surface processes necessary to understand their interactions and influences on evolutionary processes. Lake Tanganyika, Africa, contains the most continuous, long continental climate record from the mid-Miocene …
Wangari Maathai, Tabitha M. Kanogo
Wangari Maathai, Tabitha M. Kanogo
Ohio University Press Open Access Books
Wangari Muta Maathai is one of Africa’s most celebrated female activists. Originally trained as a scientist in Kenya and abroad, Professor Maathai returned to her home country of Kenya with a renewed political consciousness. There, she began her long career as an activist, campaigning for environmental and social justice while speaking out against government corruption. In 2004, Maathai was awarded the Nobel Peace Prize for her leadership of the Green Belt Movement, a conservation effort that resulted in the restoration of African forests decimated during the colonial era.
In this biography, Tabitha Kanogo follows Wangari Maathai from her modest, rural …
Preliminary Palynology Of The Karoo Equivalent Tanga Beds, Coastal Tanzania: Insights On Preservation, Age And Depositional Environments, Stephen Peter Magohe
Preliminary Palynology Of The Karoo Equivalent Tanga Beds, Coastal Tanzania: Insights On Preservation, Age And Depositional Environments, Stephen Peter Magohe
Tanzania Journal of Science
The major challenge to the current understanding of the stratigraphy of the Tanga Basin is scarcity of biostratigraphy age-control data. A number of palynomorphs retrieved from core samples of the Tanga Beds and analysed for palynology are here presented. These include bisaccate pollen grains belonging to the Alisporites-Falcisporites complex, making about 55% average of the total assemblage. The rest of the assemblage comprises other palynomorphs (pollen and spores) and phytoclasts. The miospores documented from the studied samples have poor to fairly good preservation; the organic residues (non-pollen palynomorphs) are excellently preserved. Based on palynologic evidences, and the presence of fossil …
The Vezo Communities And Fisheries Of The Coral Reef Ecosystem In The Bay Of Ranobe, Madagascar, Shane Abeare
The Vezo Communities And Fisheries Of The Coral Reef Ecosystem In The Bay Of Ranobe, Madagascar, Shane Abeare
LSU New Orleans Theses and Dissertations
Madagascar, a country whose extraordinary levels of endemism and biodiversity are celebrated globally by scientists and laymen alike, yet historically has received surprisingly little research attention, is the setting of the present dissertation. Here, I contribute to the need for applied research by: 1) focusing on the most intensely fished section of the Toliara Barrier Reef, the Bay of Ranobe; 2) characterizing the marine environment, the human population, and the fisheries; and 3) collecting the longest known time-series of data on fisheries of Madagascar, thereby providing a useful baseline for future analyses. In Chapter 1, the bathymetry of the Bay …
The Relationship Between Forest Management And Stream Discharge In Mazumbai And Baga Ii Forest Reserves, Tanga Region, Tanzania, Shannon Duffy
The Relationship Between Forest Management And Stream Discharge In Mazumbai And Baga Ii Forest Reserves, Tanga Region, Tanzania, Shannon Duffy
Independent Study Project (ISP) Collection
Deforestation is known to alter hydrology by reducing interception, transpiration and infiltration capacity, and increasing runoff which all leads to higher stream discharge. For rural Tanzanian communities, surface water resources are crucial for meeting basic needs, so the integrity of headwater catchments need to be maintained to ensure their reliability. The objectives of this study were to a) map the streams in the two forests because none currently exist and b) determine the effect of deforestation on discharge variability. Over fifteen days of data collection, this study analyzed variability of discharge and the degree of correlation between discharge and rainfall …
E-Waste Shouldn’T Be Waste: A Study On The Practices, Perceptions, And Policies On E-Waste In Urban Arusha, Tanzania, Melanie Mckenzie
E-Waste Shouldn’T Be Waste: A Study On The Practices, Perceptions, And Policies On E-Waste In Urban Arusha, Tanzania, Melanie Mckenzie
Independent Study Project (ISP) Collection
This study examines the e-waste stream in urban Arusha, answer the questions of where electronics go, how people usually dispose of them, if people are aware of the impacts of e-waste, and what next steps are necessary. The study took place in November 2019 in urban Arusha, Tanzania. Through snowball and convenience sampling in 4 quotas (community members, electricians, business members, and a policy maker), the study finds that there is no place for the proper disposal of e-waste in Arusha. Many electronics are disposed of improperly by being put into the landfill or burned. Most participants were unaware of …
Impacts Of Agricultural Practices On Soil Quality And The Resulting Soil Conservation Implication In Kizanda Village, Lushoto Region, Tanzania, Sarah Maccormick
Impacts Of Agricultural Practices On Soil Quality And The Resulting Soil Conservation Implication In Kizanda Village, Lushoto Region, Tanzania, Sarah Maccormick
Independent Study Project (ISP) Collection
This study examined soil conservation in Kizanda Village which is in the Lushoto District, Tanga Region in the West Usambara Mountains of Tanzania. In Tanzania, and more specifically, the rural montane area, agriculture is an important part of both social and economic development. Due to a reported high rate of land degradation in Tanzania, this development is threatened though the lack of soil conservation. This study conducted structured interviews with farmers in Kizanda through snowball sampling to collect information about local agricultural practices and farmers’ perceptions on soil conservation issues. Soil samples were then collected from the corresponding farms (n= …
Coastal Stream Salinity And Its Impacts On Pemba Agriculture, Sara Mccormack
Coastal Stream Salinity And Its Impacts On Pemba Agriculture, Sara Mccormack
Independent Study Project (ISP) Collection
The extent of saltwater inundation of coastal streams was assessed on Pemba Island near agricultural areas in northeastern and northwestern regions of the island. Conductivity and pH were measured from water samples collected at various distances along the stream to determine the extent of salinity at different points in the tidal cycle. This salinity data, as well as the context of recent weather events, runoff, and geological characteristics of the region were used to determine the primary factors that influence changes in surface water salinity. The primary factor that influences surface water salinity was determined to be changes in stream …
Multivariate Assessment Of Metal Contamination In Mtoni Sedimentary Environment, Tanzania, Matobola Mihale
Multivariate Assessment Of Metal Contamination In Mtoni Sedimentary Environment, Tanzania, Matobola Mihale
Tanzania Journal of Science
Enrichment factor, geo-accumulation factor, contamination factor, degree of contamination, modified degree of contamination and potential contamination index were applied to assess the contamination of metals (Al, Cr, Mn, Fe, Ni, Cu, Zn, As, Cd and Pb ) in the Mtoni estuary sediments in Dar es Salaam, Tanzania. The sediment samples were sampled as appropriate, treated using established methods and analysed using inductively coupled plasma-high resonance mass spectrometry. The calculated enrichment factor values indicated contamination varying from minor (EF > 1) to severe contamination (EF > 50). The determined geo-accumulation index, contamination factor, degree of contamination, modified degree of contamination and potential contamination …
A Decision-Making Framework For Hybrid Resource Recovery Oriented Wastewater Systems, Nader Rezaei
A Decision-Making Framework For Hybrid Resource Recovery Oriented Wastewater Systems, Nader Rezaei
USF Tampa Graduate Theses and Dissertations
Water shortage, water contamination, and the emerging challenges in sustainable water resources management (e.g., the likely impacts of climate change and population growth) necessitate adopting a reverse logistics approach, which is the process of moving wastewater from its typical final destination back to the water supply chain for reuse purposes. This practice not only reduces the negative impacts of wastewater on the environment, but also provides an alternative to withdrawal from natural water resources, forming a closed-loop water supply chain. However, the design of such a supply chain requires an appropriate sustainability assessment, which simultaneously accounts for economic, environmental, and …
How ‘Hot’ Is Too Hot? Evaluating Acceptable Outdoor Thermal Comfort Ranges In An Equatorial Urban Park, Su Li Heng, Winston T. L. Chow
How ‘Hot’ Is Too Hot? Evaluating Acceptable Outdoor Thermal Comfort Ranges In An Equatorial Urban Park, Su Li Heng, Winston T. L. Chow
Research Collection School of Social Sciences
Urban green spaces offer vital ecosystem services such as regulating elevated temperatures in cities. Less information exists, however, on how urban green spaces influence outdoor thermal comfort (OTC), which is dependent on people’s perceptions of the complex interactions amongst ambient humidity, wind and both air and radiant temperatures. In this study, we analysed an existing OTC dataset compiled within a large Singapore urban park and calibrated OTC thresholds for physiological equivalent temperatures (PET) by analysing PET against thermal perception survey responses from the park visitors (n = 1508). We examined OTC according to (i) neutral, (ii) acceptable and (iii) preferred …
From Best Fit Technologies To Best Fit Scaling: Incorporating And Evaluating Factors Affecting The Adoption Of Grain Legumes In Sub-Saharan Africa, Andrew Farrow, Esther Ronner, Greta J. Van Den Brand, Stephen K. Boahen, Wilson Leonardo, Endalkachew Wolde-Meskel, Samuel Adjei-Nsiah, Regis Chikowo, Fredrick Baijukya, Peter Ebanyat, Emmanuel A. Sangodele, Jean Marie Sanginga, Speciose Kantengwa, Lloyd Phiphira, Paul Woomer, Theresa Ampadu-Boakye, Edward Baars, Fred Kanampiu, Bernard Vanlauwe, Kenneth E. Giller
From Best Fit Technologies To Best Fit Scaling: Incorporating And Evaluating Factors Affecting The Adoption Of Grain Legumes In Sub-Saharan Africa, Andrew Farrow, Esther Ronner, Greta J. Van Den Brand, Stephen K. Boahen, Wilson Leonardo, Endalkachew Wolde-Meskel, Samuel Adjei-Nsiah, Regis Chikowo, Fredrick Baijukya, Peter Ebanyat, Emmanuel A. Sangodele, Jean Marie Sanginga, Speciose Kantengwa, Lloyd Phiphira, Paul Woomer, Theresa Ampadu-Boakye, Edward Baars, Fred Kanampiu, Bernard Vanlauwe, Kenneth E. Giller
All Peer-Reviewed Publications
The success of scaling out depends on a clear understanding of the factors that affect adoption of grain legumes and account for the dynamism of those factors across heterogeneous contexts of sub-Saharan Africa. We reviewed literature on adoption of grain legumes and other technologies in sub-Saharan Africa and other developing countries. Our review enabled us to define broad factors affecting different components of the scaling out programme of N2Africa and the scales at which those factors were important. We identified three strategies for managing those factors in the N2Africa scaling out programme: (i) testing different technologies and practices; (ii) evaluating …
Status Updates On Plastics Pollution In Aquatic Environment Of Tanzania: Data Availability, Current Challenges And Future Research Needs, Dativa J. Shilla
Status Updates On Plastics Pollution In Aquatic Environment Of Tanzania: Data Availability, Current Challenges And Future Research Needs, Dativa J. Shilla
Tanzania Journal of Science
Plastics are the most useful materials invented by man, and have brought great convenience to our daily lives but not without problems. Inappropriate disposal of wasted plastics has caused serious environmental problems. Over the past decade, microplastic debris in both marine and freshwater systems have become an emerging issue. A literature review was conducted to summarize the current state of knowledge of plastic pollution in Tanzanian aquatic systems. Although, Tanzania has vast coastlines and world’s largest freshwater lakes, the extent of microplastics presence in the aquatic environment remains largely unreported. Data from volunteer beach cleanups in Dar es Salaam areas …
Community Forestry Frameworks In Sub-Saharan Africa And The Impact On Sustainable Development, Lalisa A. Duguma, Joanes Atela, Alemayehu N. Ayana, Dieudonne Alemagi, Mathew Mpanda, Moses Nyago, Peter A. Minang, Judith M. Nzyoka, Divine Foundjem-Tita, Cécile Ngo Ntamag-Ndjebet
Community Forestry Frameworks In Sub-Saharan Africa And The Impact On Sustainable Development, Lalisa A. Duguma, Joanes Atela, Alemayehu N. Ayana, Dieudonne Alemagi, Mathew Mpanda, Moses Nyago, Peter A. Minang, Judith M. Nzyoka, Divine Foundjem-Tita, Cécile Ngo Ntamag-Ndjebet
All Peer-Reviewed Publications
Community based forest management (CBFM) has been implemented in Africa since the 1980s. Three main objectives, which are currently part of the sustainable development goals (SDGs), underlie the formation of CBFM. They are (1) enhancing community engagement in forest management, (2) reducing rural poverty, and (3) promoting forest resources conservation. We examine CBFM frameworks in sub-Saharan Africa (SSA) and CBFM schemes’ contribution to selected sustainable development goals relevant to the forestry sector. Five SSA countries, Ethiopia, Kenya, Cameroon, Uganda, and Tanzania were chosen for the study because of their long-term engagement in CBFM. The analysis was based on desk review …
A Catalog Of Orchid Species And Their Distribution In Mazumbai Forest Reserve, Tanga Region, Tanzania, Sierra Loomis
A Catalog Of Orchid Species And Their Distribution In Mazumbai Forest Reserve, Tanga Region, Tanzania, Sierra Loomis
Independent Study Project (ISP) Collection
Although orchids are common in Mazumbai Forest Reserve (MFR), there are limited resources on where they grow and how to identify them. The primary objective of this study is to create an updated catalog of orchids in MFR, using species abundance, richness and diversity of the orchids as indicators of where orchids prefer to grow in MFR. Orchid species vary greatly as altitude changes, making it important to survey orchids across different altitudes. Therefore, Mazumbai Forest was split into five different altitudinal bands spanning 1400 – 1900m and six 100 x 20m plots in each band were surveyed for both …
Livelihoods Of The People Of Mazumbai: A Collection Of Stories And Portraits, Tanga Region, Tanzania, Joseph Baldus
Livelihoods Of The People Of Mazumbai: A Collection Of Stories And Portraits, Tanga Region, Tanzania, Joseph Baldus
Independent Study Project (ISP) Collection
Despite rapid urbanization in Tanzania, agriculture remains central to the nation, the economy, and the livelihoods of a large portion of the population. Smallholder farmers account for the vast majority of agricultural production, yet are an extremely vulnerable population due to poverty, single-sourced income, and climate-dependency for both subsistence and cash-crop agriculture (Rapsomanikis, 2015). This report explores these dynamic rural livelihoods through interviews and portrait photographs in a case study on Mazumbai, Tanga region, Tanzania. Semi-structured interviews explore the people’s modes of economic subsistence, domestic lives, education, challenges, and life stories. Excerpts from these interviews combined with portrait photographs create …
Levels Of Heavy Metals In Selected Facial Cosmetics Marketed In Dar Es Salaam, Tanzania, Joseph Yoeza Naimani Philip, Silvia John, Othman Chande Othman
Levels Of Heavy Metals In Selected Facial Cosmetics Marketed In Dar Es Salaam, Tanzania, Joseph Yoeza Naimani Philip, Silvia John, Othman Chande Othman
Tanzania Journal of Science
The aim of this study was to determine the levels of heavy metals: lead, cadmium, copper, zinc, arsenic and mercury in facial cosmetics (lipstick, lip glossy, facial powder, foundation, eyeliner, eye shadow and mascara) which were purchased randomly in Dar es Salaam, Tanzania. The levels of lead, cadmium, copper and zinc were determined using Atomic Absorption Spectrometry (AAS). The levels of arsenic were determined using Hydride Generation Atomic Absorption Spectrometry (HGAAS), and levels of mercury were determined using Cold Vapour Atomic Absorption Spectrometry. Prior to determination of the concentration of heavy metals, the samples were acid digested. The average order …
Levels Of Heavy Metals In Deposited Dust And Soil From Selected Primary Schools In Dar Es Salaam, Joseph Yoeza Naimani Philip, Eliamini Ismail Mkenga, Othman Chande Othman
Levels Of Heavy Metals In Deposited Dust And Soil From Selected Primary Schools In Dar Es Salaam, Joseph Yoeza Naimani Philip, Eliamini Ismail Mkenga, Othman Chande Othman
Tanzania Journal of Science
The objective of this study was to examine the levels of heavy metals, lead, manganese, nickel, copper, chromium and cadmium in standard one and kindergarten classroom dusts and playing ground soils from selected primary schools along Morogoro road highway (Kimara, Mbezi, Kibamba and Kiluvya primary schools) and away from Morogoro road highway (Makabe, Msumi and Mbopo primary schools) as well as in the Dar es Salaam city center (Uhuru, Mzimuni, Dr. Omari Ali Juma, Manzese and Ubungo National House primary schools), Tanzania. The samples were acid digested and the supernatant analyzed using inductively coupled plasma optical emission spectrometer (ICP-OES). The …
"Waste Is Not Just Waste Anymore": Deconstructing The Relationship Between Sustainable Waste Prevention And Individual Socio-Demographic Characteristics (The Juxtaposition Of Ushongo Mtoni Village And Moshi Urban, Tanzania), Mahalia Smith
Independent Study Project (ISP) Collection
I am going to tell you a story about humans — their lives, livelihoods, environments, and their individual relationships to sustainable waste prevention. As developing countries, such as Tanzania experience economic growth, waste overflow and proper waste disposal become even more arduous challenges. Thus, it is becoming increasingly important to explore sustainable solutions such as waste prevention. Through conducting semi-structured interviews in two distinctly unique locations, Moshi Urban of the Kilimanjaro Region and Ushongo Village on the coast of Tanga Region, Tanzania, I explored how levels of awareness and involvement in sustainable waste prevention practices, specifically reducing, reusing, and recycling, …
Spatial Distribution Of Bactrocera Dorsalis And Thaumatotibia Leucotreta In Smallholder Avocado Orchards Along Altitudinal Gradient Of Taita Hills And Mount Kilimanjaro, James J. Odanga, Samira Mohamed, Sizah Mwalusepo, Florence Olubayo, Richard Nyankanga, Fathiya Khamis, Ivan Rwomushana, Tino Johansson, Sunday Ekesi
Spatial Distribution Of Bactrocera Dorsalis And Thaumatotibia Leucotreta In Smallholder Avocado Orchards Along Altitudinal Gradient Of Taita Hills And Mount Kilimanjaro, James J. Odanga, Samira Mohamed, Sizah Mwalusepo, Florence Olubayo, Richard Nyankanga, Fathiya Khamis, Ivan Rwomushana, Tino Johansson, Sunday Ekesi
All Peer-Reviewed Publications
Avocado (Persea americana) fruits are an important source of income and a nutritious food for small-scale growers and other stakeholders involved in farming along the Afrotropical highlands of Taita Hills and Mount Kilimanjaro in Kenya and Tanzania, respectively. Avocado fruits are infested by several insect pests, namely the Asian invasive fruit fly, Bactrocera dorsalis (Hendel) (Diptera: Tephritidae), and the false codling moth, Thaumatotibia leucotreta Meyrick (Lepidoptera: Tortricidae). However, there is inadequate information on the distribution patterns of these pests in small-scale avocado cropping systems in the East African highlands. This study was initiated to generate a spatial distribution map of …