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Assessment Of Heavy Metal And Radioactivity Levels In Spinach (Spinacia Oleracea) Grown At Bahi Wetlands In Dodoma Region, Najat K. Mohammed, Boniface Haule

Tanzania Journal of Science

This study reports on the levels of heavy metals and radionuclides in Spinach (Spinacia oleracea) grown in Bahi wetlands in Dodoma Region. The farm soil in Bahi wetland has been reported to contain elevated concentrations of 238U, 232Th and 40K due to the existence of shallow uranium deposit in the area. In this study, spinach (Spinacia oleracea) grown in three zones of Bahi district were analyzed for heavy metals and radioactivity associated with the uranium deposit in the area. The concentrations of elements were determined by Energy Dispersive X-ray Analysis (EDXRF) of Tanzania Atomic Energy Commission, Arusha. The activities of …

In Vitro Antimicrobial Activity Of Extracts Of Some Plant Species Used In The Management Of Hiv/Aids In Tanzania, Cyprian Beda Mpinda, Debra Meyer, Sylvester Leonard Lyantagaye

Tanzania Journal of Science

Six plants species (Harungana madagascariensis, Sapium ellipticum, Teclea nobilis, Pseudospondias microcarpa, Rauvolfia vomitoria and Psorospermum febrifugum) which are used in managing HIV/AIDS in Bukoba, Tanzania were screened for their antimicrobial effect on the selected representatives of infectious bacterial and fungal species. Gram-positive bacteria Streptococcus lactis, Gram-negative bacteria Klebsiella pneumoniae and a fungus Candida albicans were tested for their sensitivity to the treatment with selected plants extracts using disc diffusion and broth dilution techniques. Extracts of S. ellipticum, P. febrifegum and P. microcarpa demonstrated growth inhibition of S. lactis with the MIC ranging from 3.2 to 100 mg/ml. The extracts of …

Occurrence Of Pathogenic Vibrio Cholerae Serogroups O1 And O139 In Some Estuaries Of Tanzania, David Temba, Lucy Namkinga, Sabrina Moyo, Thomas J. Lyimo, Charles V. Lugomela

Tanzania Journal of Science

In this study, the occurrence of culturable Vibrio cholerae serogroup O1 and O139 in three selected Tanzanian Estuaries, Mzinga, Pangani and Ruvu were explored. A total of 480 water and plankton samples were collected along salinity gradients (fresh, brackish and marine waters). Samples were enriched in Alkaline Peptone Water (APW) and subsequently cultured on Thiosulfate Citrate Bile-Salt Sucrose (TCBS) agar. Resulting isolates were serially identified by oxidase test, API-20E test and monoclonal antibodies for V. cholerae serogroup O1 and O139. A total of 670 presumptive V. cholerae isolates were obtained from 416 samples (86.7%), where 137 (20.4%) were oxidase test …

Assessment Of Indoor Radon-222 Concentrations In The Vicinity Of Manyoni Uranium Deposit, Singida, Germana W Mlay, Ismael N Makundi

Tanzania Journal of Science

This study aimed to assess indoor radon concentrations in the vicinity of the Manyoni Uranium Deposit in Singida. The concentrations were measured for two months in 32 houses in the vicinity of Manyoni Uranium Deposit and 9 houses at Manyoni town using a portable radon gas monitor (Alpha –GUARDTM). The radon concentrations ranged from 27±3 to 518±28 Bq/m3with the overall mean of 166±12 Bq/m3 which is above recommended values of 100 Bq/m3 and 148 Bq/m3 set by WHO (World Health Organization) and EPA (Environmental Protection Agency's), respectively. The overall mean of indoor radon concentrations from each village were Kipondoda (169±13 …

Diet Composition Of The Golden Jackal (Canis Aureus) In The Ngorongoro Crater, Tanzania, Se Temu, Cuthbert L Nahonyo, Pd Moehlman

Tanzania Journal of Science

The Ngorongoro crater is known for having the highest density of carnivores in the world. In the past, most of the research focused on large carnivores such as lions and spotted hyenas. Medium sized carnivores such as jackals have received very little attention and the information on these carnivores including their diet composition is limited. Diet composition of golden jackal(Canis aureus) was studied in the Ngorongoro crater from July 2014 to May 2015 covering both dry and wet seasons using focal animal observation (direct method) and  collection (and analysis) of faecal/scat samples from known individuals in the field (indirect method). …

Intermittent Fetal Heart Rate Monitoring Using A Fetoscope Or Hand Held Doppler In Rural Tanzania: A Randomized Controlled Trial, Paschal Francis Mdoe, Hege L. Ersdal, Estomih R. Mduma, Jeffrey M. Perlman, Robert Moshiro, Peter T. Wangwe, Hussein Kidanto

Obstetrics and Gynaecology, East Africa

Background: Neonatal mortality is a global challenge, with an estimated 1.3 million intrapartum stillbirths in 2015. The majority of these were found in low resource settings with limited options to intrapartum fetal heart monitoring devices. This trial compared frequency of abnormal fetal heart rate (FHR) detection and adverse perinatal outcomes (i.e. fresh stillbirths, 24-h neonatal deaths, admission to neonatal care unit) among women intermittently assessed by Doppler or fetoscope in a rural low-resource setting.

Methods: This was an open-label randomized controlled trial conducted at Haydom Lutheran Hospital from March 2013 through August 2015. Inclusion criteria were; women in labor, …

A Care Bundle Including Antenatal Corticosteroids Reduces Preterm Infant Mortality In Tanzania A Low Resource Country, Augustine Massawe, Hussein Kidanto, Robert Moshiro, Edna Majaliwa, Flora Chacha, Aisa Shayo, Paschal Mdoe, Prisca Ringia, Mary Azayo, Georgina Msemo

Faculty of Health Sciences, East Africa

Background Preterm neonatal mortality (NM) has remained high and unchanged for many years in Tanzania, a resource-limited country. Major causes of mortality include birth asphyxia, respiratory insufficiency and infections. Antenatal corticosteroids (ACS) have been shown to significantly reduce mortality in developed countries. There is inconsistent use of ACS in Tanzania.

Objective To determine whether implementation of a care bundle that includes ACS, maternal antibiotics (MA), neonatal antibiotics (NA) and avoidance of moderate hypothermia (temperature < 36°C) targeting infants of estimated gestational age (EGA) 28 to 34 6/7 weeks would reduce NM (< 7 days) by 35%.

Methods A Pre (September 2014 to May 2015) and Post (June 2015 to June 2017) Implementation strategy was used and introduced at three University-affiliated and one …

Intermittent Fetal Heart Rate Monitoring Using A Fetoscope Or Hand Held Doppler In Rural Tanzania: A Randomized Controlled Trial, Paschal Francis Mdoe, Hege Ersdal, Estomih Mduma, Jeffrey M. Perlman, Robert Moshiro, Peter Wangwe, Hussein Kidanto

Faculty of Health Sciences, East Africa

Background: Neonatal mortality is a global challenge, with an estimated 1.3 million intrapartum stillbirths in 2015. The majority of these were found in low resource settings with limited options to intrapartum fetal heart monitoring devices. This trial compared frequency of abnormal fetal heart rate (FHR) detection and adverse perinatal outcomes (i.e. fresh stillbirths, 24-h neonatal deaths, admission to neonatal care unit) among women intermittently assessed by Doppler or fetoscope in a rural low-resource setting.

Methods: This was an open-label randomized controlled trial conducted at Haydom Lutheran Hospital from March 2013 through August 2015. Inclusion criteria were; women in labor, …

Children’S Perspectives Of Their Psychosocial Wellbeing In Tanzanian Orphanages, Agnes Msoka, Eleanor Holroyd

School of Nursing & Midwifery, East Africa

The aim of this study was to explore factors affecting the wellbeing of institutionalized orphaned children in Dar es Salaam, Tanzania. A descriptive qualitative study was used to collect data from Tanzanian orphaned children receiving orphanage care. Purposive sampling was employed to select 10 orphanage centers from which 123 orphaned children were recruited. A semi-structured interview guide relevant to the study objectives was developed from the literature and was used to guide the focus group interviews. Data was analysed by way of thematic analysis. There were 76 male and 47 female orphans; orphans without one or both parents were 87 …

A Focus On The Us Narrative: Does The New York Times Portrayal Of Women Living With Hiv And Aids In Southern Africa Perpetuate Hiv/Aids Stigma?, Boitshepo Monte Balozwi

Graduate Theses and Dissertations

The aim of the study was to determine the dominant and recurring frames influencing the narrative and media portrayal of women living with HIV and AIDS in Southern Africa, a region characterized by a low socio-economic status and the highest HIV and AIDS infection rates globally. The study analyzed 238 stories published in The New York Times from 1985 to 2017. Findings of the study show that news reports frequently associate sex workers and pregnant women to coverage on HIV and AIDS therefore stigmatizing them as vectors of the disease. The newspaper stories provided adequate socioeconomic context resulting in African …

Hip-Hop In Africa : Prophets Of The City And Dustyfoot Philosophers, Msia Kibona Clark

Ohio University Press Open Access Books

Throughout Africa, artists use hip-hop both to describe their lives and to create shared spaces for uncensored social commentary, feminist challenges to patriarchy, and resistance against state institutions, while at the same time engaging with the global hip-hop community. In Hip-Hop in Africa, Msia Kibona Clark examines some of Africa’s biggest hip-hop scenes and shows how hip-hop helps us understand specifically African narratives of social, political, and economic realities.

Clark looks at the use of hip-hop in protest, both as a means of articulating social problems and as a tool for mobilizing listeners around those problems. She also details the …

Teachers’ Perspectives Regarding The Impacts Of The Secondary Education Expansion Policy On Students’ Self-Regulatory Learning Experiences In Tanzania, Godlove Lawrent

The Qualitative Report

Since 2004, the Tanzania secondary education sector has witnessed a significant increase in the number of new schools and enrolment rates. At the same time, academic results have indicated an increase in poor student performance. The assumption has been that the expansion policy brought about devastating consequences for student learning. The purpose of this study, therefore, was to investigate the perceptions of teachers in relation to the impacts of the government’s secondary education expansion policy on students, especially their self-regulatory learning. A qualitative case study approach was employed, and interviews were used as data gathering tools. Thirty respondents were purposively …

Imaging The Woman Through Tanzanian Women’S Maxims, Shani Omari, Fikeni E. M. K. Senkoro

Journal of International Women's Studies

Women’s maxims, as well as other forms of oral literature in Tanzania, are a popular genre. They are verbal arts that can be self-addressed or addressed to a fellow woman among womenfolk. This paper intends to examine the role of these maxims in imaging women in Tanzania. This study was prompted by the findings of previous studies regarding the portrayal of women in Kiswahili literature where, generally, women are depicted as inferior beings compared to men, partly due to the fact that most authors are men. Hence, we found it imperative to investigate women’s maxims that are created and uttered …

Cseas Weekly Bulletin (April 23, 2018), Center For Southeast Asian Studies

CSEAS Bulletin

No abstract provided.

Predictors Of Low Birth Weight And 24-Hour Perinatal Outcomes At Muhimbili National Hospital In Dar Es Salaam, Tanzania: A Five-Year Retrospective Analysis Of Obstetric Records, Benjamin Anathory Kamala, Andrew Hans Mgaya, Matilda Michael Ngarina, Hussein Kidanto

Obstetrics and Gynaecology, East Africa

Abstract

Introduction: The global prevalence of low birth weight (LBW) is 16%, representing more than 20 million infants worldwide, of which 96% are born in low-income countries. This study aimed to determine the prevalence, predictors and perinatal outcomes of LBW newborns.

Methods: We conducted a retrospective analysis of data obtained from the hospital's obstetric and neonatal database. Descriptive statistics and multivariate logistic regression were performed with 95% confidence intervals (CI).

Results: The prevalence of LBW was 21% (n = 8,011) and two-thirds of these were delivered at term. Seven percent of newborns were stillbirths and 2% died within 24hrs after …

Optimization Of Biogas Production Process In Solid State Digesters In Semiarid Areas Of Northern Tanzania, Debora J Mahushiab, Alfred Nn Muzukaa, Revocatus L Machunda

Tanzania Journal of Science

Solid state digestion process has received much attention due to its low water requirements, making it preferred in semi-arid areas as well. In this study, the performance of the household solid state digesters was evaluated through monitoring of the feedstock mixing ratios and using the digester gas pressure as a measure of performance. Additionally, a batch study to verify the appropriate and optimal mixing ratio of feedstocks was also done. The mixing ratios of cow dung to water were 2:1, 3:1 and 4:1. Total solids determined were 120, 150 and 170 mg/g for the ratios 2:1, 3:1 and 4:1, respectively. …

Structural Classification Using Aeromagnetic Data And Pseudogravity Transforms: A Case Study Of Pategi Area Of Bida Basin, Nigeria, Ayodele K Olawuyi, Halima M Amir, Mkabwa Lk Manoko

Tanzania Journal of Science

The structural classification with 3D Euler deconvolution method in the Pategi area, a transition environment between the Basement complex rocks of the southwestern Nigeria and the Sedimentary rocks of the Nupe Basin was carried out. It was aimed at identification of the structural features responsible for the hydrogeology and mineralization potentials of the area. This work involves the qualitative and quantitative analysis of aeromagnetic data and pseudogravity transforms using Oasis MontajTM. The 3-D Euler deconvolution of the acquired aeromagnetic data and pseudogravity transforms using Oasis montajTM software and the geologic information on this area was employed in the structural classification …

Speciation Of Lead, Chromium, Cadmium, Copper And Zinc In Sediments And Plants Along Msimbazi River In Dar Es Salaam, Tanzania, Faustin N Ngassapa, Othman C Othman, David Mihayo, Kessy F Kilulya

Tanzania Journal of Science

The speciation of lead, chromium, cadmium, copper and zinc in sediments and plants (pumpkin) along Msimbazi River in Dar es Salaam were determined using Atomic Absorption Spectrophotometry.  Results in sediments indicated that the heavy metal contents (mg/kg) in the form of total trace metals ranged from 50.34 to 161.63 for Pb, 68.38 to 501.85 for Zn, 18.43 to 66.61 for Cu, 20.93 to 76.46 for Cr and BDL to 0.23 for Cd. The contents (mg/kg) in the form of metals bound to organic matter ranged from 18.24 to 46.58 for Pb, 27.64 to 228.62 for Zn, 3.55 to 16.76 for …

Seasonal Variation And Nutrient Levels Influence Phenolic Contents In Seagrass Thalassia Hemprichii Along Dar Es Salaam Coast, Asukisye Kajela, Esther F Mvungi

Tanzania Journal of Science

Seasonal variation in total phenolics in Thalassia hemprichii from four different sites with varied nutrient loading along Dar es Salaam coast was studied. Besides few studies existing on phenolics in seagrass species done to assess status of the seagrass meadows, there is paucity of information for seagrass species along the coast of Indian Ocean in Dar es Salaam. In this study, Thalassia hemprichii shoots were collected from four different sites having different levels of anthropogenic pressure during dry and rainy seasons. The total phenol contents of above and belowground parts of the seagrass were determined using Folin-Ciocalteu method. Results indicates …

The Plant Species Composition, Diversity And Natural Regeneration Of Indigenous Trees In The Disturbed Ruvu South Forest Reserve, Tanzania, Cosmas Mligo

Tanzania Journal of Science

Ruvu Forest Reserve is among coastal forests in Tanzania that has been impacted by the increased anthropogenic activities. It was determined the plant species composition, diversity and indigenous trees regeneration growth size structure in the degraded Ruvu South Forest. Transect method was used to collect data that were treated using t-test. A total of 110 plant species distributed among 38 families were recorded such that Holarrhena pubescens, Hymenocardia ulmoides, Millettia micans, Ochna mossambicensis, Pseudolachnostylis maprouneifolia and Strychnos madagascariensis were the most common trees in moderately disturbed site, whereas Albizia versicolor, Pteleopsis myrtifolia, Pterocarpus angolensis, Antiaris toxicaria, Diplorhynchus condylocarpon and Terminalia …

Effects Of Magnetic Fields On An Unsteady Mixed Convective Boundary Layer Flow Of An Electrically Conducting Fluid With Temperature Dependent Properties, Raymond Kitengeso, Eunice Mureithi, Makungu James, John Mango

Tanzania Journal of Science

A mixed convective boundary layer flow of an electrically conducting fluid with temperature dependent properties over an inclined plate is investigated. The magnetohydrodynamic boundary layer governing equations are derived by using Boussinesq and boundary layer approximations. The equations are transformed to similarity form using a similarity transformation variable and the resulting boundary value problem is solved numerically. The effects of magnetic fields, unsteadiness, mixed convection and variable fluid properties on velocity and temperature in the boundary layer are analysed. The effects of pertinent parameters on skin friction and heat transfer are also analysed

Assessment Of Radioactivity Levels In Coal And Coal Ash In Kiwira Coal Mine Using Gamma-Ray Spectrometry, Ismael N Makundi, Mungubariki M Nyaki, Najat K Mohammed

Tanzania Journal of Science

This study aimed to assess the radioactivity levels and associated dose rates from the naturally occurring radionuclides 226Ra, 232Th and 40K in coal and coal ashes at Kiwira coal mine. The radioactivity of 40 representative coal, fly ash samples were measured using gamma spectroscopy of the Tanzania Atomic Energy Commission (TAEC) in Arusha, Tanzania. The activity concentrations of 226Ra, 232Th and 40K in coal and coal ashes from Kiwira were higher by several orders of magnitude than their worldwide average values. The calculated radium equivalent activity, the air absorbed dose rate, external hazard index and the average annual effective dose …

Similarity Coefficients Influence The Delimitation Of Species In The Genus Aloe L. (Xanthorrhoeaceae), Halima Amir, Mkabwa Manoko

Tanzania Journal of Science

The present study was designed to establish the influence of coefficients indices in delimiting species using phenetic approach based on morphological data. Data were collected from thirty nine Aloe species described in Flora of Tropical East Africa. A total of forty two qualitative and quantitative characters were compiled from 83 specimens of aloes. Ten coefficient indices were tested. Data were analysed using UPMA approach of PAST software. The analyses confirmed that, truly coefficient of indices influenced the resulting classification. Of the 10 coefficients used only three produced 36-38 of the 39 species. Almost a third produced less than ten species-specific …

Fluoride Occurrence In Domestic Water Supply Sources In Tanzania: A Case Of Meru District Arusha Region, Godfrey Mbabaye, Rwaichi Minja, Felix Mtalo, Isack , Legonda, Godfrey Mkongo

Tanzania Journal of Science

Surface and ground water are the major sources of water supply in Meru district. Most of the people in Meru rural areas depend on surface water in rivers and ground water shallow and deep wells and springs for house hold activities. The presence of fluoride in high concentrations in drinking water or cooking water causes severe health problems to the people. Distribution of fluoride concentrations in Meru district domestic water sources was studied by referencing the location of water sources using Extrex 20 garmin hand held GPS instrument. Fluoride concentrations were measured using Metrohm Ag/AgCl reference electrode connected to a …

Through-The-Wall Radar Imaging With Compressive Sensing; Theory, Practice And Future Trends-A Review, Abdi Abdalla

Tanzania Journal of Science

Through-the-Wall Radar Imaging (TWRI) is anemerging technology which enables us to detect behind the wall targets using electromagnetic signals. TWRI has received considerable attention recently due to its diverse applications. This paper presents fundamentals, mathematical foundations and emerging applications of TWRI with special emphasis on Compressive Sensing (CS) and sparse image reconstruction.Multipath propagation stemming from the surrounding walls and nearby targets are among the impinging challenges.Multipath components produce replicas of the genuine target, ghosts, during image reconstruction which may significantly increase the probability of false alarm. The resulting ghost not only creates confusion with genuine targets but may deteriorate the …

Toward Effective Partially Protected Areas In Tanzania: A Review On Experiences From Ugalla Ecosystem, Paulo Wilfred

Tanzania Journal of Science

Tanzania is understandably concerned about the deterioration of its partially protected areas (PPAs, e.g. game controlled and open areas) due to unauthorised resource use activities. Its 2007 wildlife policy recognises that PPAs are managed as buffer zones so they provide a cushion against land use impacts on core protected areas, and support local livelihoods. Ensuring effective protection of PPAs is especially timely given the fact that Tanzania’s human population is now large and growing rapidly, with rising demand for natural resources, and that protected areas are becoming increasingly isolated. This paper draws insight from research activities in Ugalla ecosystem, western …

Application Of Regression Model To Identify A Parameter That Best Defines Species Diversity In The Coastal Forests Of Tanzania, Cosmas Mligo

Tanzania Journal of Science

Coastal forests of Tanzania are diverse in plant species that make them included as part of the 34 world biodiversity hotspots. This study aimed atdetermining plant species diversity, richness, and evenness as well as to identify the parameter that best defines plant species diversity in the three coastal forests; namely Zaraninge, Kazimzumbwi and Pande. Transect method was used for vegetation data collection and subjected to Analysis of variance and regression techniques. The plant species composition among forests ranged between 75 and 146 with a significantly lower diversity index in Zaraninge (2.057 ± 0.112) than those in Pande (2.415 ± 0.022) …

Assessment Of Water Quality Variation In Rivers Through Comparative Index Technique And Its Reliability For Decision Making, Aldo Kitalika, Revocatus Machunda, Hans Komakech, Karoli N Njau

Tanzania Journal of Science

The National Sanitation Foundation (NSF) and Weighed Arithmetic Index (WAI) methods for water quality index (WQI) have been studied to evaluate their reliability in water quality assessment in rivers. Water samples were collected in various GPS predetermined points in Temi, Nduruma, Tengeru and Maji ya Chai rivers-Tanzania during wet and dry seasons and were analyzed for several water quality parameters using standard methods as per APHA. Medium to excellent water qualities were observed for pristine environment in three rivers except Maji ya Chai under NSF and WIA methods, respectively. Excellent water quality was observed in the pristine environment of Temi …

Unh Students Conduct J-Term Field Research Across The Globe, Bill Maddocks

UNH Today Archive

No abstract provided.

Cseas Weekly Bulletin (April 16, 2018), Center For Southeast Asian Studies

CSEAS Bulletin

No abstract provided.