Digital Commons Network^™

Comparative Polar And Lipid Plasma Metabolomics Differentiate Kshv Infection And Disease States, Sara R. Privatt, Camila Pereira Braga, Alicia Johnson, Salum J. Lidenge, Luke Berry, John R. Ngowi, Owen Ngalamika, Andrew G. Chapple, Julius Mwaiselage, Charles Wood, John T. West, Jiri Adamec

School of Biological Sciences: Faculty Publications

Background Kaposi sarcoma (KS) is a neoplastic disease etiologically associated with infection by the Kaposi sarcoma-associated herpesvirus (KSHV). KS manifests primarily as cutaneous lesions in individuals due to either age (classical KS), HIV infection (epidemic KS), or tissue rejection preventatives in transplantation (iatrogenic KS) but can also occur in individuals, predominantly in sub-Saharan Africa (SSA), lacking any obvious immune suppression (endemic KS). The high endemicity of KSHV and human immunodeficiency virus-1 (HIV) co-infection in Africa results in KS being one of the top 5 cancers there. As with most viral cancers, infection with KSHV alone is insufficient to induce tumorigenesis. …

Comparative Polar And Lipid Plasma Metabolomics Differentiate Kshv Infection And Disease States, Sara R. Privatt, Camila Pereira Braga, Alicia Johnson, Salum J. Lidenge, Luke Berry, John R. Ngowi, Owen Ngalamika, Andrew G. Chapple, Julius Mwaiselage, Charles Wood, John T. West, Jiri Adamec

School of Medicine Faculty Publications

Background: Kaposi sarcoma (KS) is a neoplastic disease etiologically associated with infection by the Kaposi sarcoma-associated herpesvirus (KSHV). KS manifests primarily as cutaneous lesions in individuals due to either age (classical KS), HIV infection (epidemic KS), or tissue rejection preventatives in transplantation (iatrogenic KS) but can also occur in individuals, predominantly in sub-Saharan Africa (SSA), lacking any obvious immune suppression (endemic KS). The high endemicity of KSHV and human immunodeficiency virus-1 (HIV) co-infection in Africa results in KS being one of the top 5 cancers there. As with most viral cancers, infection with KSHV alone is insufficient to induce tumorigenesis. …

Comparative Polar And Lipid Plasma Metabolomics Differentiate Kshv Infection And Disease States, Sara R. Privatt, Camila Pereira Braga, Alicia Johnson, Salum J. Lidenge, Luke Berry, John R. Ngowi, Owen Ngalamika, Andrew G. Chapple, Julius Mwaiselage, Charles Wood, John T. West, Jiri Adamec

School of Biological Sciences: Faculty Publications

Background Kaposi sarcoma (KS) is a neoplastic disease etiologically associated with infection by the Kaposi sarcoma-associated herpesvirus (KSHV). KS manifests primarily as cutaneous lesions in individuals due to either age (classical KS), HIV infection (epidemic KS), or tissue rejection preventatives in transplantation (iatrogenic KS) but can also occur in individuals, predominantly in sub-Saharan Africa (SSA), lacking any obvious immune suppression (endemic KS). The high endemicity of KSHV and human immunodeficiency virus-1 (HIV) co-infection in Africa results in KS being one of the top 5 cancers there. As with most viral cancers, infection with KSHV alone is insufficient to induce tumorigenesis. …

Ict's Potential For Improving Information Resource Sharing Among Tanzania’S Academic Libraries, Christian Mubofu, Salatiel Chaula

Library Philosophy and Practice (e-journal)

This study examined at how ICT could improve resource sharing amongst academic libraries in Tanzania. The assessment was conducted in the MUHAS, UDSM, OUT, and TUDARCO libraries—all of which are COTUL members and take part in the system of resource sharing. A quantitative research strategy was used, and questionnaires were used to gather data. SPSS Version 20 was used to analyze the data using descriptive statistics. Participants thought the library's ICT infrastructure was insufficient for resource sharing, according to the study's findings. A paucity of computers, which are necessary for sharing, was also discovered. Respondents acknowledged the significance that ICT …

Access To Health Information Among Pregnant Women In Morogoro Municipal, Tanzania, Ronald Benard Dr.

Library Philosophy and Practice (e-journal)

he purpose of this study was to assess the accessibility of health information among pregnant women in Morogoro Municipality in Tanzania. This study was conducted in four main health stations (hospitals) which were selected purposively. This cross-sectional study involved 80 pregnant women who were randomly selected. Data were obtained by using questionnaires. Results showed that pregnant women in the study area expressed various information needs, categories of most needed health information were: information on miscarriage, information on immunization, and information on breast feeding. Moreover, results revealed that information on delivery and family planning were highly accessible. Moreover, the study results …

Contributors, Inamori Center

The International Journal of Ethical Leadership

No abstract provided.

Investigating The Salinity Tolerance Of The Swordtail (Xiphophorus Hellerii), Alexandra Megan Krak

College of Science and Health Theses and Dissertations

The swordtail, Xiphophorus hellerii, is a freshwater fish species native to Mexico and Central America and is commonly used in the tropical aquarium trade. Swordtails have been shown to have limited survival in 6 ‰ salinity (Nanda et al., 2016), suggesting they may have a greater salinity tolerance than previously expected. Using a gradual acclimation method, we examined the salinity tolerance and swim performance of this species. Freshwater-reared female swordtails were housed in 29-gallon aquaria. A control group was held in freshwater throughout the experiment. For the experimental group, the salinity was increased by 2 ‰ every week until 30 …

Marketing Strategies And User Appreciation Of The Services Provided By Public Libraries, Ronald Odung, Bonniface Agungi

Library Philosophy and Practice (e-journal)

This study established the relationship between marketing strategies and user appreciation of the services provided by Public Libraries. The findings revealed that there was a significant relationship between marketing strategies and user appreciation of the Public Library services. The use of social media, general reference service and the use of Library Website are marketing strategies that can be adopted by Public Library. Provision of conducive Library space, benchmarking, analyzing user’s behavior, Quantitative evaluation, effective use of catalog and the size of the collection were ways that Public Library staff apply to assess the level of user appreciation. the finding recommend …

Dorsal Pancreas Agenesis, An Incidental Finding During Acute Appendicitis Diagnosis; A Case Report, Willbroad Kyejo, Ally Zain Ismail, Sajida Panjwani, Nancy Matillya, Ahmed Jusabani, Adil Datoo, Pilly Ally

Family Medicine, East Africa

Introduction and importance: Dorsal pancreas agenesis is a rare congenital anomaly characterized by the absence or severe underdevelopment of the dorsal pancreatic bud. We report a case of a man who presented with features of appendicitis only to the incidentally discovery of dorsal pancreas agenesis during the diagnosis of acute appendicitis. We describe our experience on radiological diagnostic formulation and work up.

Case presentation: We present the case of a 45-year-old male patient who presented to the emergency department with symptoms and signs suggestive of acute appendicitis. A computed tomography scan and laboratory investigations confirmed the diagnosis of appendicitis. Incidentally, …

Health Facilities Preparedness To Deliver Maternal And Newborn Health Care In Kilifi And Kisii Counties, Kenya, James Orwa, Marleen Temmerman, Lucy Nyaga, Kennedy Mulama, Stanley Luchters

Population Health, East Africa

Introduction: Health facility preparedness is essential for delivering quality maternal and newborn care, minimizing morbidity and mortality by addressing delays in seeking skilled care, reaching appropriate facilities, and receiving emergency care. A rapid assessment of 23 government health facilities in Kilifi and Kisii counties identified poor maternal and newborn indicators in 16 facilities. The Access to Quality Care through Extending and Strengthening Health Systems (AQCESS) project supported these facilities with training, equipment, and referral linkages. This study focuses on facility preparedness of the 16 facilities to deliver maternal and newborn health services, specifically delays two and three at the end …

Exploring Women's Interests In Household Waste Disposal And Management, Kemi Funlayo Akeju, Femi Omotoso

Journal of Environmental Science and Sustainable Development

Despite establishing waste management boards and environmental agencies across states in Southwest Nigeria, household waste disposal remains poorly managed, with low consideration given to its reuse and recycling. Previous research has established the menace of improper household waste disposal in Nigeria. This paper examines women's household waste disposal methods and their awareness, willingness, and interest in waste management and recycling. This study was conducted in November 2021 with a sample of 436 women selected across six communities in 3 States in Southwest Nigeria (Lagos, Osun, and Ekiti states). In each state, one rural and urban Community is selected. Descriptive analysis …

A Constructivist Analysis Of China’S Geopolitical Economic Strategy Toward Africa: A Case Of Sino-Tanzanian South-South Cooperation, Azza Bimantara

Global: Jurnal Politik Internasional

This article discusses China’s foreign policy toward African countries by examining Sino-Tanzanian South-South Cooperation (SSC). By utilising a modified, state-centric social constructivism, this study identifies domestic and international realms of China’s normative structure responsible for shaping China’s identities within the international community. It also explains how China can reconcile its competing identities between a Global South and rising great power statuses, which gives China the ability to combine its normative interest (i.e., Global South solidarity) and material interest (i.e., the geopolitical-geoeconomic strategy) into a diverse project of SSC with positive and proactive perception from Tanzania. This study contributes toward the …

Smartphone Use In Financial Management Among Women’S Informal Saving Groups In Dodoma, Tanzania, Madina H. Juma, Jarkko Suhonen, Nasibu Rajabu Mramba, Matti Tedre, Alsen F. Kapinga

The African Journal of Information Systems

Diffusion of smartphone technology has created multiple opportunities for economic development. This research investigated the use of smartphones in financial management among women’s informal saving groups in Dodoma, Tanzania. Qualitative data were collected from 10 groups, derived from 15 interviews and 3 focus group discussions (FGDs) with 22 participants and thematic analysis was done. The findings revealed that research participants were using smartphones to access WhatsApp, the camera, mobile money applications and the calculator for coordination, recording, calculation, and payment. It was also found that untrustworthy communications, high charges and mobile fraud were challenges experienced by the groups. Familiarity, ease …

The Realisation Of Grammatical Tone In Cigogo Verbs, Amani J. Chipalo

Journal of Humanities and Social Sciences

This descriptive study aims to investigate how grammatical tone is realized in Cigogo verbs. The information was gathered through interviews and oral history techniques in the villages of Muungano, Ilolo, and Ndebwe in the Mvumi division. The replies from the interviews and the storytelling were captured using an MP3 recorder. The verb forms were then evoked for the analysis of the tone patterns based on the autosegmental theory. The findings show that Cigogo uses a grammatical tone to convey the perfective aspect, imperative mood, and reflexiveness in the past tense (immediate past). The kind of verb stem determines where the …

Language Contact And The State Of Multilingualism In The Linguistic Landscape Of Tete Province In Mozambique, Crisófia Langa Da Da Câmara, Amani Lusekelo

Journal of Humanities and Social Sciences

Mozambique is a multilingual country that adopted Portuguese as the language of official communication right from Independence Day in 1975. Later in the 1990s it adopted 19 Bantu languages as the media of instruction in lower education. This move opened an avenue for Bantu languages to be used in public domains in the country. Since the Metropolitan Maputo had been the centre of previous research of languages of public spaces, this paper looks at the language uses that unfold in the signposts of Tete Province to determine the manifestations of the Bantu languages in urban public spaces. Firstly, the findings …

Availability And Utilisation Of School Library Resources For Learning Activeness By Students In Selected Secondary Schools In Isokan Local Government, Osun State, Nigeria, Sunday Fakunle

Library Philosophy and Practice (e-journal)

This study investigates the availability and utili sation of school library resources by secondary school students in five selected secondary schools in Isokan local government area of Osun state, Nigeria. The main objective of this study was to assess availability, purpose and frequency of, as well as constraints and strategies to improve use of school library resources by students of secondary schools in Isokan. Local Government, Osun State, Nigeria.

Simple random sampling with proportionate to sample was used to select 2.5% respondents from each selected school to make a sample size of 228 respondents. The study employed descriptive survey research …

Situational Analysis Of Gold Processing Practices At Artisanal And Small-Scale Gold Mining In Tanzania, Sospeter Maganga

Tanzania Journal of Engineering and Technology (TJET)

This study reports the state-of-art situation of gold processing practices at artisanal and small-scale gold mining (ASGM) in Tanzania. It involved literature review, document review of public domain reports, and field survey during data collection. This was followed by screening of literature, reports, and field data relevant to the study topic. Further, the strengths, weaknesses, opportunities, and challenges (SWOC) analysis of ASGM was conducted and discussed. The study indicates that ASGM subsector in Tanzania continues growing with people involved directly in ASGM ranging between 1 to 1.5 million. Further, the study indicates that ASGM in Tanzania contributes about 90% of …

Relationship Between The Demographic Factors Of People Living In Cholera Endemic Areas And Their Knowledge Towards The Preventive Measures Against The Disease, Zainab Mohamed Mahmmod, Tabarek Ayad Noori, Ali Najm Abdullah

Al-Nisour Journal for Medical Sciences

Cholera is an infectious, acute bacterial disease caused by Vibrio Cholera. Watery diarrhea is the predominant clinical sign of the disease. Around the world, it is thought to be responsible for up to 4 million cases annually. This digestive contagious is characterized by high-volume fluid loss and electrolyte disturbances that may advance to hypovolemic shock and finally death. This survey study seeks to discover how well-informed, how individuals in Diyala, Iraq, feel about cholera epidemics, and how they behave in practice. In the present research, there were a total of 272 participants, with a mean age of 20 to 29 …

A Health Systems Approach To Critical Care Delivery In Low-Resource Settings: A Narrative Review, Stephen A. Spencer, Faustina Excel Adipa, Tim Baker, Ana Maria Crawford, Paul Dark, Dingase Dula, Stephen B. Gordon, David Oliver Hamilton, Dawit Kebede Huluka, Wangari Siika

Anaesthesiology, East Africa

There is a high burden of critical illness in low-income countries (LICs), adding pressure to already strained health systems. Over the next decade, the need for critical care is expected to grow due to ageing populations with increasing medical complexity; limited access to primary care; climate change; natural disasters; and conflict. In 2019, the 72nd World Health Assembly emphasised that an essential part of universal health coverage is improved access to effective emergency and critical care and to “ensure the timely and effective delivery of life-saving health care services to those in need”. In this narrative review, we examine critical …

Outdoor Performance Of The Black Globe Temperature Sensor On A Hot And Humid Tropical Region, Juan A. Acero, Angela Dissegna, Yon Sun Tan, Adrian Tan, Leslie K. Norford

Research Collection School of Social Sciences

A crucial variable to evaluate thermal comfort is the mean radiant temperature (Tmrt). In this paper we evaluate the performance of the 150 mm black globe thermometer to provide reliable Tmrt values for outdoor settings in Singapore. Accurate Tmrt values are calculated by the method of integral radiation measurements. Based on these, the mean convection coefficient of the black globe has been re-calibrated. Results show an improvement in the estimation of Tmrt with the new coefficient in comparison with the default version suggested in ISO7726:1998. Increasing the averaging periods of the measured variables improved the performance of the derived mean …

Addressing The Global Expertise Gap In Radiation Oncology: The Radiation Planning Assistant, Laurence Court, Ajay Aggarwal, Hester Burger, Carlos Cardenas, Christine Chung, Raphael Douglas, Monique Du Toit, David Jaffray, Anuja Jhingran, Michael Mejia, Raymond Mumme, Sikudhani Muya, Komeela Naidoo, Jerry Ndumbalo, Kelly Nealon, Tucker Netherton, Callistus Nguyen, Niki Olanrewaju, Jeannette Parkes, Willie Shaw, Christoph Trauernicht, Melody Xu, Jinzhong Yang, Lifei Zhang, Hannah Simonds, Beth M Beadle

Faculty, Staff and Student Publications

PURPOSE: Automation, including the use of artificial intelligence, has been identified as a possible opportunity to help reduce the gap in access and quality for radiotherapy and other aspects of cancer care. The Radiation Planning Assistant (RPA) project was conceived in 2015 (and funded in 2016) to use automated contouring and treatment planning algorithms to support the efforts of oncologists in low- and middle-income countries, allowing them to scale their efforts and treat more patients safely and efficiently (to increase access).

DESIGN: In this review, we discuss the development of the RPA, with a particular focus on clinical acceptability and …

On The Use Of Wireless Technologies For Wildlife Monitoring: Wireless Sensor Network Routing Protocols, Lilian Mutalemwa

Tanzania Journal of Engineering and Technology (TJET)

Traditional methods for wildlife monitoring are labor-intensive and time-consuming. Therefore, advanced technologies and remote monitoring methods are becoming increasingly popular. This paper presents a study on wireless technologies for wildlife monitoring. In the study, a review of the literature was done to identify the most commonly used wireless technologies. Various technologies were explored including unmanned aerial vehicles (UAVs), Internet of Things (IoT), wireless sensor networks (WSNs), artificial intelligence (AI), global positioning system (GPS), and very high frequency (VHF) radio. Then, a more detailed study was done on WSN technology. Investigations were done to observe the performance of routing protocols in …

Determination Of Cyanide Concentration Levels In Surface Water And Soil From Artisanal Small-Scale Gold Mining Villages At Chunya, Mbeya - Tanzania, Mahir Mohammed Said

Tanzania Journal of Engineering and Technology (TJET)

This study aimed to determine levels of cyanide (CN) pollution in the soil and surface water at selected mining sites of Mbeya region. A total of (n = 124) samples were collected and analyzed by spectrophotometry. The cyanide levels of soil-based samples and water-based samples at Mwasenga, and Ifumbo mining sites were above the permissible limits. This was due to poor disposal of tailing from the gold processing plants and mismanagement of wastewater. On the other hand, the Cyanide was within the allowable limit for both soil and water at Godima, Itewe, Ashishira and Nyatula mining sites. This was attributed …

Assessment Of Spatial Variability Of Groundwater Levels In Moroto District, Uganda, Augustina Clara Alexander Dr

Tanzania Journal of Engineering and Technology (TJET)

Globally, the variation of groundwater levels is increasingly overwhelming due to over exploitation resulting from population growth. The dynamic nature of socio-economic activities in Moroto District such as agriculture, settlements and increased trends in irrigation technology has been well-known worldwide as common parameters triggering groundwater variability. Nevertheless, determination of groundwater levels for groundwater management and development purpose is a challenge due to spatial variability in levels across Moroto District. In this study, geostatistical technique in Geographical Information System (GIS) was used to analyze spatial variability of water levels in the study area. The analysis utilized ordinary Kriging method to predict …

Performance Evaluation Of Full Array, Sub-Array And Overlapped Sub-Array Hybrid Beamforming Architectures For Massive Mimo Systems, Godwin Mruma Gadiel

Tanzania Journal of Engineering and Technology (TJET)

The technological advancement in wireless communication, promises high data rate for end users. This has led to the possibility of smart cities, inter connected vehicles, and virtual reality applications. One of the recent technologies in wireless communication is massive MIMO where large number of antennas are deployed at the transmitter or receiver. This is possible due to the use of mmWave in wireless communication. With massive MIMO, beamforming technique can be employed in the communication system. Beamforming is the ability of communication system to direct power to the intended users and to cancel power at non-intended users and thus significantly …

Product Costing And Pricing In Small And Medium Enterprises In Tanzania, Cosmas F Kindole

Tanzania Journal of Engineering and Technology (TJET)

metalwork small and medium enterprises located in Dar es Salaam with the aim of establishing methods used by SMEs in Tanzania in setting selling prices of their products. The study was necessitated by the apparent discrepancy of prices for similar products from SMEs. The approach used to gather information was mainly through direct interview and the use of questionnaires. Direct observation and literature review were also used to establish the whole costing and pricing practices in metal manufacturing SMEs. The findings of the study established that product selling practices of the surveyed SMEs were based on instinct and appearance of …

Experimental Investigation On Recovery Of Micro Hydropower Dump Load Through Oil Heating System, Joseph H. Kihedu Dr.

Tanzania Journal of Engineering and Technology (TJET)

Micro hydropower power generates electrical energy to meet connected electrical demand, that normally fluctuates causing imbalances. Electronic load controller is then used to balance power system by diverting surplus generated power to the dump load commonly resistive load such as bulk water heater. This study investigated use of oil heating system as a replacement for conventional resistive dump load. In comparison to water, oil has high thermal retention therefore can serve as good thermal media. Dump load range ranged between 17 kW to 78 kW. A 6-kW electrical heater was used for laboratory oil heating system from which heated oil …

Assessments Of The Application Of Earned Value Management System For Construction Project Performance Measurement In Zanzibar, Juma M. Matindana

Tanzania Journal of Engineering and Technology (TJET)

Many construction projects in developing countries including in Zanzibar suffer from time and budget overruns. The Revolution Government of Zanzibar established different bodies such as Zanzibar Contractors Registration Board (ZCRB), Zanzibar Architects, Engineers and Quantity Surveyors Registration Board (ZAEQRB), Zanzibar Public Procurement and Disposal of Public Asset Authority (ZPPDA), among others with the aim of controlling the performance of project. Often scope creep, time and cost overruns are very common problems in construction projects. This study aims at addressing those problems by assessing the use of Earned Value Management (EVM) methodology in measuring construction industry performance in Zanzibar. The study …

Assessment On Usage Of The Library Website Resources By Students In The Information Studies Programme At The University Of Dar Es Salaam, Hosea N. Mungwabi

Tanzania Journal of Engineering and Technology (TJET)

The study investigated students' usage of electronic resources available on the UDSM Library's website. Specifically, the study determined whether information studies students were aware of the electronic resources, how frequently they used them, and whether their demographic characteristics influenced their usage. The study also examined the students' satisfaction with the functional and non functional attributes of the website resources. A mixed-methods research design combining both qualitative and quantitative data collection methods was used. The sample consisted of 118 student respondents who were selected using a stratified random sampling technique. The data were collected through questionnaires and interviews with class representatives …

Smart Grid In Tanzania: Research Opportunities, Aviti Thadei Mushi

Tanzania Journal of Engineering and Technology (TJET)

reinvigorated its power generation capacity significantly to ensure smooth execution of its industrialization agenda and cope with the fourth industrial revolution. To ensure reliable availability of power to sustain its growing economy, Tanzania embarked on a deliberated measure to forge an energy mix. This deliberate measure encompasses the use of renewable energy technologies such as wind, solar, biomass, wastes, and micro hydro; natural gas; and other energy sources which are locally available including coal and geothermal. To effectively and efficiently manage such a growing power system and make electricity accessible to all for higher levels of industrial investment and services, …