Digital Commons Network^™

Trophic Transfer Of Fluorescent Polyethylene Microplastics In A Simplified Artemia–Oreochromis Aquatic Food Chain, Dativa J. Shilla

Tanzania Journal of Science

Microplastics (MPs) are pervasive contaminants in aquatic ecosystems, yet experimental evidence of their trophic transfer within tropical African food webs remains scarce. This study provides experimental evidence of indirect trophic transfer of microplastics from Artemia salina to Oreochromis urolepis, a cichlid species of ecological and economic importance in African inland and coastal waters. A simplified two-level food chain was established by exposing A. salina nauplii to fluorescent polyethylene microplastics (10–20 µm; 1, 10, and 100 mg L⁻¹) and subsequently feeding them to juvenile O. urolepis under controlled laboratory conditions. These concentrations were selected to represent a range of exposure levels …

The Helminthic Status Of Selected Tanzanian Subterranean Rodents, The Root-Rats (Spalacidae: Tachyoryctes Splendens) And Emini Silvery Mole-Rats (Bathyergidae: Heliophobius Argenteocinereus Emini), Jestina V. Katandukila

Tanzania Journal of Science

Root-rats (Tachyoryctes splendens) and emini silvery mole-rats (Heliophobius argenteocinereus emini) are common subterranean rodents that are essential component of the ecosystem. They serve as prey for small to medium-sized carnivores and birds of prey but their role as hosts to parasites is limited. The present study, explored the Gastrointestinal Tract (GIT) contents of 40 rodents (20 T. splendens and 20 H. a. emini, respectively) to acquire information on parasites diversity of these mammals. The GIT contents from subterranean rodents in a sex ratio of 1:1 were examined under a compound microscope to isolate helminths. The isolated helminths belonged to the …

Modelling And Analysis Of 50 Mwp Solar Pv Integration Into Tanzania’S Transmission Network: A Case Study Of Tagamenda Substation, Iringa Region, Santos Kihwele

Tanzania Journal of Science

While increasing the share of renewable energy in the grid, grid integration studies for the utility solar photovoltaic (PV) plants are vital, given their intermittency and the fact that Tanzania has never had one connected to the grid. This paper presents a 50 MWp grid integration study, including a technical analysis conducted using PSS®E software. The study investigates the grid behaviour during the integration of the 50 MWp solar plant, considering the most suitable technical and economic solutions. The study analysed the load flow under normal conditions, contingency analysis (N-1), short- circuit analysis, and voltage stability assessment. The results show …

Optimization Of Bio-Briquettes Production From Cassava Stems Co-Blended With Sisal Bole Bagasse Using Response Surface Methodology, Agnes Nshoma Msobi, Neema O. Msuya, Kando Khalifa Janga

Tanzania Journal of Science

This research aimed at producing bio-briquettes from cassava stems and sisal bole bagasse as an alternative source of cooking energy. A Response Surface Methodology (RSM) with Face - Centered Central Composite Design (FCCCD) featured a multi-objective optimization of the effect of the production parameters, focusing on maximizing char yield and Higher Heating Value (HHV) of the produced briquette while minimizing carbonization temperature and residence time. The findings showed that bio-briquettes produced at the lowest temperature (250 ℃) and residence time (30 min) and the blending ratio of 75% by 25% had the highest char yield of 76.92% and HHV of …

A System For The Prediction Of Election Results Using Vader And Hybridized Machine Learning Model, Abraham E. Evwiekpaefe, Khadijah Kabir, Georgina N. Obunadike

Tanzania Journal of Science

Integrating different classifiers along with sentiment lexicons like Vader, can enhance the performance of sentiment analysis systems. However, such a hybrid model remains underexplored, particularly in the context of regional elections in developing countries like Nigeria. The aim of this research is to develop a hybrid model that combines three machine learning classifiers and Vader lexicon to possibly achieve a higher accuracy. A case study of the 2023 governorship election in Kogi, Bayelsa and Imo State, Nigeria was examined. Twitter API library was utilized to extracted public and personal tweets using hashtags and keywords related to the target data from …

Experimental Study Of A Scaled Flexible Riser For Hydrogen Transport From A Floating Wind Turbine Platform To The Seabed, Jessica Guichard, Martyn Hann, Tom Tosdevin, Deborah Greaves

School of Engineering, Computing and Mathematics

Dolphyn Hydrogen aims to support the UK Government’s 2030 hydrogen targets by deploying a 10-15 MW Commercial Scale Demonstrator that produces hydrogen offshore using wind energy. To achieve this, hydrodynamic studies are required to optimise the flexible pipeline transporting hydrogen from a floating wind turbine to the seabed, as well as the buoyancy modules that create the riser’s lazy wave shape. A key parameter is ensuring the riser never bends below its minimum allowable radius. The hydrodynamic behaviour of a 6-inch NOV flexible pipe is tested at 1:62 scale in the University of Plymouth’s COAST Laboratory Ocean Basin. The riser …

Applying Theory Of Planned Behavior To Examine Adolescent Female Athletes’ Intentions Of Continued Sport Participation, Chris Hopkins, Casey S. Hopkins

Open Access Fund Publications

Introduction: Adolescent females discontinue sports at higher rates than males, which contributes to their lower overall physical activity during this important period of development. Potentially useful for understanding this disparity, the Theory of Planned Behavior (TPB) provides a framework to study one's intentions through their attitudes, subjective norms, and perceived behavioral control. This study examined whether TPB constructs predict female adolescents’ intentions to continue participating in sports and remain physically active.

Methods: This cross-sectional study used an online questionnaire to collect data from 271 female adolescents who recently participated in organized sports. Structural equation modeling was used to test TPB's …

Engagement With Tailored Physical Activity Interventions Among Women In Midlife With Elevated Risk For Cardiovascular Disease, Kiri Baga

Theses and Dissertations

Women in midlife (ages 40-65) with risk factors for cardiovascular disease (CVD) need physical activity (PA) interventions that are informed by and address their daily challenges and life circumstances, to reduce their chances of premature mortality from CVD. Sustaining engagement with PA interventions remains a substantial challenge for women in midlife. The aims of the proposed study were to describe participants’ PA-relevant characteristics and intervention preferences and to identify their patterns of engagement with different PA support tools (tailored PA website, intervention involving pairing women as PA partners). With respect to engagement, there was limited between-person stability in engagement outcomes …

“Courage, Sisters. Your Living Is The Stuff Of Freedom”: Women In The Camden 28, 1971-1973, Abbigail Madeline Ealer

Theses and Dissertations

This historical study investigated the role and experiences of the ten women in the Camden 28, which was a group of Catholic Leftists who raided the draft board in Camden, NJ in 1971 to protest the Vietnam War. In utilizing a myriad of sources from archival collections through scarcely seen personal ephemera to correspondence with individuals connected to this case, this thesis demonstrated the importance of these women to the planning and execution of the raid as well as their significance to the outcome of the trial in 1973. It also showed the need for targeted scholarship on them. Furthermore, …

Filling The Knowledge Gap: The National Automobile Theft Bureau And The Rise Of Private Intelligence, 1912–1941, William Murray

Theses and Dissertations

This thesis examines the Automobile Protective and Information Bureau (APIB) and its successor, the National Automobile Theft Bureau (NATB), situating these institutions within the development of corporate intelligence in the United States. The rapid expansion of automobile ownership produced a form of crime defined by technological advancement and jurisdictional fragmentation that existing law enforcement could not effectively address. In response, automobile insurance companies created the APIB as a centralized clearinghouse for theft intelligence. By standardizing reporting, maintaining national records, and distributing investigative information, the Bureau developed an early private intelligence infrastructure that supported law enforcement. The limitations of local enforcement …

Livelihood Transformation In Indonesian Peatland Communities: A Never-Ending Adaptation Strategy, Sulistya Ekawati, Sri Suharti, Murniati Murniati, Subarudi Subarudi, Moh. Andika Lawasi, Dicky Rachmawan, Ari Nurlia, Surati Surati, Nurul Silva Lestari, Bugi Kabul Sumirat, Handoyo Handoyo, Enkin Asrawijaya

Forest and Society

Local communities have mainly depended on peatlands for their livelihoods since ancient times. The peatland ecosystem plays a vital role, not only at the local level but also at the national and global levels. The important role of peatlands has shifted and influenced the government's policies, affecting the community's livelihood. This paper aims to analyse the shifting livelihood of local communities and formulate adaptation strategies for future challenges. The study employs a systematic literature review with NVivo for coding and themes categorization, providing a structured and transparent synthesis. The research results indicated that government policies often overlook local wisdom values …

The Role Of Chatgpt In Higher Education: A Systematic Literature Review Of Applications, Perceptions And Ethical Implications, Mahmoud Abdelrahman, Shiyu Hu, Ons Al-Shamaileh, Ramy Hammady, Nishara Nizamuddin

All Works

Purpose – This study aims to systematically review the emerging literature on ChatGPT in higher education, focusing on its applications, impacts and ethical implications from the perspectives of students and academic staff. By synthesising evidence across disciplines and geographical contexts, the review identifies key benefits such as enhanced learning efficiency and artificial intelligence (AI) literacy, alongside challenges including academic integrity risks and unequal access. The purpose is to provide a comprehensive, student-centred understanding of ChatGPT’s role in higher education and to offer actionable insights for policy, practice and future research. Design/methodology/approach – This study adopts a systematic literature review (SLR) …

Quercus Rubra (L.) Fine Root Trait Trade-Offs, Respiration, And Biomass Across A Midwestern U.S. Latitudinal Gradient, Emma L. Shedd, Andrew Burton, Carsten Kulheim, Molly A. Cavaleri

Michigan Tech Publications

Aims: Regional climate changes may lead to shifts in root traits, affecting forest productivity and carbon release. Fine roots, which can respire significant proportions of fixed carbon dioxide back to the atmosphere, may adjust through changes in their respiration rates, morphology, nitrogen content, or biomass. Across a species’ range, understanding how these characteristics vary in response to their current environments lays the groundwork for predicting their responses to novel environments. We investigated northern red oak (Quercus rubra L.) fine root trait and biomass responses to growing season temperature and precipitation, and soil properties. Methods: We sampled soil and Q. rubra …

Link, Retain, Suppress: A Grounded Theory Study Of Medical Case Management In The Philadelphia Hiv Service Agencies, Shakeera Wynne

Social Work Doctoral Dissertations

Medical case management (MCM) plays a critical role in supporting engagement in HIV care; however, differences in implementation across agencies may influence service delivery and outcomes. Existing research has focused primarily on outcomes such as retention in care and viral suppression, while less is known about how the MCM intervention is implemented in practice. The purpose of this grounded theory study was to explore how medical case management is implemented within HIV care settings and to examine the structural, organizational, and relational factors that shape service delivery. Semi-structured interviews were conducted with medical case managers working within Ryan White-funded agencies …

Bridging The Gap Towards Sustainable Development: A Systematic Literature Review On Orang Asli Communities In Peninsular Malaysia, Nurfatiha Akmal Fawwazah Abdullah-Fauzi, Nursyuhada Othman, Hidayah Haris, Nur Hartini Sariyati, Farah Farhana Ramli, Kaviarasu Munian, Mohd Faudzir Najmuddin, Mohd Tajuddin Abdullah, Muhammad Abu Bakar Abdul-Latiff

Forest and Society

Orang Asli communities in Peninsular Malaysia have a complex history marked by challenges related to land rights, environmental degradation, and cultural preservation. Despite ongoing efforts to address these challenges, significant obstacles persist, particularly in healthcare access and outcomes, education, language preservation, dietary practices, religious beliefs, and policy frameworks. This systematic literature review aims to provide a comprehensive analysis of past and current research on various aspects of Orang Asli communities in Peninsular Malaysia. The primary goal is to uncover the trends of challenges and unique characteristics of the Orang Asli communities while offering valuable recommendations for improvement. The Preferred Reporting …

Extraction Of High-Quality Cashew Nutshell Liquid Using Carbon Dioxide-Expanded Hexane, Frank N. Jacob, Neema Msuya, Joseph Y.N Philip, Kando Khalifa Janga

Tanzania Journal of Science

Cashew nutshell liquid (CNSL) is a by–product from cashew processing industries containing four naturally occurring phenolic compounds. This study investigated an extraction approach using CO2–expanded hexane. The central composite design (CCD) was employed in experimental design to investigate the effects and interaction of CO 2 mole fractions and extraction temperature on the CNSL yield and quality (Colour) from Steamed CNSL. The dissolution power of the CO2–expanded hexane was assessed by determining the solubility of CNSL during the initial stages of extraction at different extraction conditions. Findings indicated that higher CO2 mole fractions reduced CNSL solubility, while higher temperatures enhanced it. …

Multi-Frequency Associative Memory For Continual Graph Learning Through Nested Optimization, Shuvam Kundu

Master’s Dissertations

Graph Neural Networks struggle to learn new tasks without forgetting old ones a problem known as catastrophic forgetting. In graph domains, this is compounded by structural shift, where newly added edges corrupt the learned representations of historical nodes even when model weights remain unchanged. We present CAM-Titans, a continual graph learning framework built around a two-buffer associative memory to address both parametric and structural forgetting. Our architecture operates across three timescales of adaptation: a slow base memory updated via ordinary gradient descent, an intermediate task buffer re-encoded after every task using the delta-rule, and a transient in-context state for rapid …

A Study Of Prompt Tuning On Small Language Models(Slms): A Controlled Benchmark And A Lightweight Instance-Aware Method, Narkadamilli Sahith

Master’s Dissertations

Parameter-efficient fine-tuning (PEFT) adapts a frozen pre-trained language model by training only a small number of additional parameters. Among PEFT approaches, prompt tuning prepends trainable continuous vectors (soft prompts) to the input. A recurring finding in the literature is that prompt tuning is strongly scale dependent: it rivals full fine-tuning on very large models but lags on smaller ones. This dissertation studies prompt tuning specifically in the small-language-model (SLM) regime. We (i) re-implement a representative set of prompt-tuning methods—Prompt Tuning, P-Tuning v2, LoPT, DPT, DePT, ACCEPT, Residual Prompt Tuning, and PARA—within a single controlled harness, enabling a fair head-to-head comparison …

Masthead

UC Law Journal of Race and Economic Justice

No abstract provided.

Foreword, Grace Perez

UC Law Journal of Race and Economic Justice

No abstract provided.

Commencement, Lagrange College

Documents

Commencement Program from LaGrange College, June 1851.

An Old School Tie, William M. Jarnigan

Documents

An article in the first UNA Alumni Magazine by William M. Jarnigan, alumni of the Class of '71 and Director of University Relations at UNA in 1992.

Florence State Teachers College History Revealed, Carey V. Stabler, Dean Florence State

Documents

Article by Carey V. Stabler, Dean Florence State Teachers College, on the history of FSTC, 1955.

Lagrange College: A Historical Sketch, Harry V. Barnard

Documents

A history of LaGrange College

Dr. Norton Speaks: Lagrange College, Florence State's Predecessor, Left Rich Heritage, Historical Association Told, The Florence Times/Dr. E.B. Norton

Documents

Dr. E.B. Norton, president of FSTC, presents a talk on the history of FSTC to the North Alabama Historical Association, March 22, 1956.

Early History Of The College, Edward F. Lund

Documents

An article by Edward F. Lund, Dean of Florence State Teachers College.

First Woman Elected To Head Board Of Trustees, The Flor-Ala

Documents on Education and Progress of the University

Mrs. R.L. Potts becomes the first woman to head the Board of Trustees as president pro tempore for the university in 1973.

1872-1974 University's Chronological History, The Flor-Ala

Documents on Education and Progress of the University

A chronological history of the University of North Alabama from 1872 onward.

An Act To Authorize And Require The State Board Of Education To Change The Name Of The Normal Schools Or Teachers College, Brown Printing Company Printers And Binders Montgomery, Alabama

Documents on Education and Progress of the University

Alabama Legislative Act No. 110 to change name to Florence State College

An Act To Create A Board Of Trustees To Manage And Control Florence State College..., Skinner Printing And Office Supply Co. Printers-Binders

Documents on Education and Progress of the University

Alabama Legislative Act No. 773 for Florence State College