Digital Commons Network^™

04.01.07. Mourning Dove, Zenaida Macroura, M. G. Korosy, Ann Hodgson, Florida Ornithological Society

04.01. <em>Columbidae</em> - Pigeons and Doves

The Mourning Dove is one of the most widespread and abundant birds where it breeds in North America, Mexico, Bahamas, and throughout the Caribbean islands.

03.01.01. Pied-Billed Grebe, Podilymbus Podiceps, H. E. Levy, Ann Hodgson, Florida Ornithological Society

03.01. <em>Podicipedidae</em> - Grebes

The Pied-billed Grebe is a compact diver that is widespread and common across most of North America. It breeds locally from southern Canada through the West Indies and Central America south to Argentina.

06.01.03. Chuck-Wills-Widow, Antrostomus Carolinensis, A. W. Kratter, Ann Hodgson, Florida Ornithological Society

06.01. <em>Caprimulgidae</em> - Nightjars and Allies

One of the joys of a night walk in spring in the quieter wooded regions of Florida is the great likelihood that you will hear a Chuck-wills-widow singing.

02.02.01. Wild Turkey, Meleagris Gallopavo, B. G. Carpenter, Ann Hodgson, Florida Ornithological Society

02.02. <em>Phasianidae</em> - Pheasants, Grouse, and Allies

Wild Turkey is a popular non-migratory game bird that breeds from southern Canada, throughout the 48 contiguous states, south to Mexico, and can also be found in Hawaii. Two of the 6 identified subspecies breed in Florida. M. g. silvestris is found in the panhandle and M. g. osceola is found only in peninsular Florida. These two subspecies look similar; the main differences being M. g. osceola has darker wings and the white barring on the primaries is narrower and irregular.

Community-Based Urban Forestry: Creating And Sustaining Community Partnerships Between Urban Forestry Non-Profit Organizations And Academic Institutions, Paloma Doyle

Botany Honors Papers

No abstract provided.

Oil Palm (Elaeis Guineensis) Leaf Extract-Mediated Green Synthesis Of Tio2 Nanoparticles And Their Optical Characteristics, Nofrijon Sofyan, Andriayani, Yetria Rilda, Fiona Angellinnov, Mouna M'Rad, Muhammad, Aga Ridhova, Akhmad Herman Yuwono, Donanta Dhaneswara

Baghdad Science Journal

This work aims to explore the characteristics of TiO2 NPs green-synthesized via an environmentally friendly method using oil palm (Elaeis guineensis) leaf extract as a green medium and capping agent by utilizing titanium tetra isopropoxide (TTIP) as precursor. The oil palm leaves were extracted with different solvent concentration variations. The natural extract was characterized using liquid chromatography-mass spectroscopy (LC-MS) and infrared spectroscopy for active chemical contents and functional groups. The obtained TiO2 NPs were also characterized using infrared spectroscopy (FTIR) for the functional groups, ultraviolet spectroscopy (UV-DRS) for the optical characteristics, and X-ray diffraction (XRD) for the phase …

Hematite/Nio/Graphene Composites: Enhancing Humidity Energy Harvesting Through Temperature Variations, Nurul Syafiqah Mohamed Mustakim, Dayana Kamaruzaman, Norfarariyanti Parimon, Mohd Khairul Ahmad, Suriani Abu Bakar, Mohamad Hafiz Mamat

Baghdad Science Journal

Harvesting energy from humidity is a new approach that has emerged as a potential renewable energy source. However, there are drawbacks to current humidity-based energy-harvesting technologies, such as the absence of a long-term conversion mechanism in hygroscopic materials. In this study, we developed hematite/nickel oxide/graphene (hematite/NiO/Gr) on a cellulose-based substrate as the hygroscopic material for humidity-to-energy applications. We successfully synthesized a novel hematite/NiO/Gr composite using a cost-effective sonicated solution immersion method at different synthesis temperatures. Results indicated that the prepared hygroscopic material is hydrophilic, with a water contact angle of 67.83°. The fabricated humidity-to-energy device utilizing these hygroscopic materials yielded …

Effect Of Ba2+ Substitution At A-Site On Structural, Electrical, And Magnetic Properties Of Sm0.5Ca0.5Mno3 Perovskite Manganite, Nuraina Hanum Abdulruhim, Rozilah Rajmi, Muhammad Zulharmi Taqzim Kamaruzzaman, Norazila Ibrahim

Baghdad Science Journal

Mixed-valence perovskite manganites have attracted considerable attention due to their intriguing properties, such as colossal magnetoresistance and charge ordering (CO). In this study, Sm_0.5Ca_0.5-xBa_xMnO₃ (x = 0, 0.10, 0.20, 0.30, and 0.40) manganites were synthesized via the conventional solid-state reaction method to investigate the effect of Ba²⁺ substitution on their structural, magnetic, and electrical properties. X-ray diffraction patterns confirmed that all samples were single-phase and crystallized in an orthorhombic structure with a Pnma space group. Rietveld refinement indicated an increase in unit cell volume with increasing Ba²⁺ concentration, suggesting the successful …

Cross-Domain Antimicrobial Resistance In Poultry Farming: A One Health Assessment Of Antimicrobial Use And Multidrug Resistance In Kiambu County, Kenya, Ann Kangai Munene, Peter Muiruri Mwangi, Lilly Caroline Bebora, Christine Minoo Mbindyo, John Muthini Maingi

All Peer-Reviewed Publications

Background and Aim: Antimicrobial resistance (AMR) has emerged as a major One Health threat driven by inappropriate antimicrobial use (AMU) in humans, animals, and the environment. Poultry production is recognized as a key reservoir of antimicrobial-resistant bacteria, yet few studies in Kenya examine AMU and AMR across interconnected human–animal–environment domains. This study assessed AMU patterns among poultry farmers in Kiambu County and characterized phenotypic resistance in Escherichia coli and Enterococcus spp. isolated from humans, chickens, and chicken environments. Materials and Methods: A cross-sectional study was conducted from May to September 2024, involving 102 poultry farms. Farm demographics and AMU data …

Mapping Robusta Coffee (Coffea Canephora) Cropping Systems In Uganda: A Two-Step Pixel And Sub-Pixel Based Approach With Sentinel-2 Data, Getachew Kebede, Bester Tawona Mudereri, Onisimo Mutanga, Tobias Landmann, John Odindi, Natacha Motisi, Fabrice Pinard, Henri E.Z. Tonnang, Elfatih M. Abdel-Rahman

All Peer-Reviewed Publications

Coffee is a highly valued commodity and a widely consumed beverage, playing an important role in global trade. However, coffee farming landscapes are increasing transitioning into smaller-scale agricultural setups. This transformation highlights the critical need for accurate classification and mapping of coffee cropping systems (CS), especially in countries like Uganda, where dense vegetation and complex terrain present substantial challenges to traditional land survey methods. Moreover, understanding the spatial distribution of Robusta coffee (Coffea canephora) CS is essential for developing site-specific management strategies, guiding extension services, and informing evidence-based policy decisions. To address this gap, the present study aimed to enhance …

Smallholder Farmers' Willingness To Pay For The Farmbetter Mobile App-Based Agricultural Extension: Evidence From A Bdm Experiment In Tanzania And Burkina Faso, Cool Dady Mangole, Kelvin Mulungu, Christian Kamala Kaghoma, Maurice Tschopp, Menale Kassie

All Peer-Reviewed Publications

Financial contributions from farmers are increasingly acknowledged as a sustainable mechanism for funding extension services. However, the literature on willingness to pay (WTP) for digital agricultural extension is limited. Conducting a thorough assessment of WTP for digital extension is critical for designing effective pricing policies and ensuring financial sustainability. This study examines the WTP for a novel digital extension platform named farmbetter, leveraging primary data collected in Tanzania and Burkina Faso. The Becker-DeGroot-Marschak (BDM) experiment was used to elicit the amount farmers are willing to pay. We applied the Lasso machine learning to predict the relevant drivers of WTP and …

A Systematic Review And Meta-Analysis Of Mosquito Arboviral Infections Detected Through Xenosurveillance In Africa: A Focus On West Nile, Rift Valley Fever, And Chikungunya Virus Infections, Mxolisi Mgongoma, Armanda Bastos, Abel Ramoelo, David P. Tchouassi

All Peer-Reviewed Publications

This systematic review and meta-analysis comprehensively evaluated the mosquito arboviral infections with West Nile virus (WNV), Rift Valley fever virus (RVFV), and chikungunya virus (CHIV), detected through xenosurveillance, reported in mosquito vectors across Africa in the last 25 years (2000–2024). The study analysed xenosurveillance data from 45 studies conducted with over 115,000 mosquito specimens, and incorporated moderator analyses to assess the influence of trap type, seasonality, regional location, settlement type, and screening methods on virus detection rates. The estimated pooled prevalence of WNV was 1.18% (95% CI: 0.60–3.43%), with higher rates observed in Culex quinquefasciatus and Culex pipiens, particularly in …

Optimal Control Analysis Of Malaria Transmission In The Presence Of Insecticide Resistance And Climate Variability In Kenya, Lorna Chepkemoi, Titus Okello Orwa, Samuel Mwalili, Rachel Waema Mbogo, Steeven Belvinos Affognon, Daisy Salifu, Henri E.Z. Tonnang

All Peer-Reviewed Publications

Malaria remains a major public health concern in Kenya, where changing climatic conditions, insecticide resistance, and mosquito behavioral adaptations continue to challenge control efforts. This study develops and analyzes a climate-sensitive malaria transmission model that incorporates mosquito behavior, insecticide resistance, and vector–human ecological dynamics to identify optimal control strategies for the Kenyan context. The model’s well-posedness was established, the basic reproduction number (R0) computed using the next-generation matrix method, and the stability of equilibrium points assessed. Spatial analysis of R0 was performed using temperature and rainfall raster data to map transmission risk across Kenya under varying insecticide use scenarios. Results …

Editorial: Sustainable Management Of Tuta Absoluta, Ahmad A. Omar, Inusa Jacob Ajene, Hafiz Muhammad Usman Aslam, Fathiya Mbarak Khamis

All Peer-Reviewed Publications

The tomato leafminer, Tuta absoluta (Meyrick), remains one of the most devastating global threats to tomato production. Its rapid invasion across continents, exceptional reproductive potential, cryptic foliar-mining behavior, and accelerated evolution of insecticide resistance have significantly complicated management efforts. The persistent failure of conventional chemical strategies underscores an urgent need for integrated solutions that combine molecular innovation, ecological engineering, and rigorous resistance monitoring. This editorial synthesizes key insights from recent contributions by Ullah et al., Bavithra et al., and Adams et al., which collectively outline a transformative, multi-dimensional framework for sustainable T. absoluta suppression.

Insect Farming Innovations: A Pathway To Self-Reliance In Agrifood Systems In Africa, Zewdu Abro, Menale Kassie, Dennis Beesigamukama, Shaphan Yong Chia, Ermias Engida Legesse, Subramanian Sevgan, Julius Ecuru, Chrysantus M. Tanga

All Peer-Reviewed Publications

Insect farming as an innovative approach to transforming agrifood systems

Insect farming has emerged as a transformative and sustainable approach to addressing the interconnected challenges of food insecurity, environmental degradation, and economic vulnerability in Africa’s agrifood systems. By converting organic waste into high-value products (protein-rich feed, frass fertilizers, and bioactive compounds), insect farming offers an efficient circular economy solution that bridges nutrition, livelihoods, and ecological resilience (Lalander et al. 2025; Mei et al. 2024; Barragán-Fonseca et al. 2022; Xia et al. 2021; Van Huis 2020; Barragán-Fonseca et al. 2017; Van Huis and Oonincx 2017; Yi et al. 2014). Almost all …

Life Cycle Assessment Of Marine Composite Recreational Craft Manufacturing And Operations, Badr Moutik

School of Engineering, Computing and Mathematics Theses

Marine composite recreational craft are growing in number. Sectoral roadmaps for sustainable development are increasing pressure to demonstrate life cycle environmental performance. Life cycle assessment (LCA) has been identified as a key strategic decision support tool. However, current practice is undermined by sparse, non-representative data and methodological inconsistencies. These weaknesses increase the risk of biased or misleading interpretation, constrain wider uptake of LCA, and limit the sector’s ability to respond credibly to tightening environmental sustainability expectations. This thesis assesses the cradle-to-grave environmental impacts of a market-representative glass-fibre reinforced plastic (GRP) motor yacht across 16 impact categories. The research builds on …

Modelling And Optimisation Of Dynamic Power Cable Configurations For Floating Offshore Renewable Energy, Anna Holcombe

School of Engineering, Computing and Mathematics Theses

Floating offshore renewable energy requires dynamic power cables to transmit generated electricity from the floating device to the seabed, or to an adjacent device, so that it can be exported to shore. Dynamic power cables are connected at the top end to a floating device, and traverse the water column, subjected to loading at the hang-off, and direct hydrodynamic loading from waves and currents. Their reliability has been a concern within industry and research, particularly due to historically high failure rates of static subsea cables. It is essential that design and analysis of dynamic power cables is accurate, to mitigate …

Degrees Of Separation: Grandchildren's Experiences Of Grandparental Brain Tumor Or Stroke, Emily Sapsford, Alyson Norman, Sue Jackson, Josh Deacon, Emily Ravenhill, Pete Keohane

School of Psychology

The impact of acquired brain injury on family members is far reaching. Research has identified experiences of trauma, ambiguous loss and burden of care. Limited research has addressed the ripple effect of brain injury across the wider family. The study aimed to gain a detailed insight into the lived experiences of grandchildren of those who have experienced stroke or brain tumor. Ten participants (eight female and two males aged between 18 and 29) took part in semi-structured interviews about their experiences of grandparental stroke or brain tumor. Data were analyzed using interpretive phenomenological analysis (IPA). Four themes were identified. The …

90-Day Consulting Engagement Grounded In Authentic And Servant Leadership Approaches–Building Capacity For Small Business, Michon Hicks

Doctor of Strategic Leadership (DSL) Capstone Abstracts

This doctoral capstone project examined a 90-day consulting engagement designed to strengthen organizational capacity in a small, M/WBE-certified professional services firm operating in a government contracting environment. Grounded in authentic and servant leadership frameworks, the engagement used a structured 30-60-90-day intervention model to assess leadership alignment, administrative infrastructure, human resources capacity, data management practices, and marketing readiness. The project employed an organizational health check-up approach to diagnose systemic gaps, co-create solutions with organizational leadership, and implement practical tools to improve operational consistency, compliance readiness, and leadership effectiveness. Outcomes of the engagement included improved leadership alignment, standardized administrative and operational workflows, …

Assessment Of Temperature Correction Factors For Falling Weight Deflectometer Deflections, Pablo Orosa Iglesias, Jin Li, Bongsuk Park, Seonghwan Cho, John E. Haddock

JTRP Technical Reports

This study presents the development of an improved temperature correction methodology for falling weight deflectometer (FWD) deflections in full-depth asphalt pavements. The objective was to address the limitations of existing correction methods by integrating viscoelastic pavement behavior, structural properties, and realistic thermal gradients. Field temperature data from instrumented sites in Indiana were used to train a machine learning model capable of predicting pavement temperature profiles in flexible pavements. These predictions informed a series of finite element simulations that captured pavement responses to FWD loading under a range of thermal and structural conditions. Temperature correction factors were then derived and modeled …

The Business Case For Sustainable Road Infrastructure Development, David Holguin Mejia, Deepak Benny, Dong Yoon Song, Konstantina Gkritza, Kumares Sinha, Samuel Labi

JTRP Technical Reports

This study developed a business-case framework for embedding sustainability into the Indiana Department of Transportation’s (INDOT) practices. The study first identified the role of sustainability in road infrastructure development, and then discussed strategic plans, sustainability programs, and institutional challenges that shape how sustainability actions are conceived and executed. The study reviewed existing sustainability rating systems, established exposure metrics, and subsequently developed a business-case framework called the Road Infrastructure Sustainability Evaluation (RISE) to guide INDOT in embedding sustainability across the full infrastructure lifecycle, from planning through end-of-life. RISE follows a multicriteria analysis approach, incorporating indicator selection, criteria evaluation, weighting, normalization, and …

Indot Training Gap Analysis, Developing A Training Program For Indot Workforce Development (New, Front-Line, Supervisors) And Smart Tool For Effective Planning For Workforce, Steven R. Dunlop, Satish V. Ukkusuri, Yunfeng Chen, Dutt J. Thakkar, Eunhan Ka, Shagun Mittal, Xinran Hu, Ze Wang, Isha Khanna, Rithesh Tammineni

JTRP Technical Reports

The primary goal of the study was to understand reasons for workforce turnover, addressing INDOT’s employee attraction and retention strategies. This objective was achieved by dividing the project into four tasks, each focusing on different criteria. Task A focused on understanding workforce development needs and gaps by determining training opportunities available at INDOT and understanding the different training methods and frequency of training required. Additionally, Task A also benchmarked workforce development programs with industry and other neighboring states. Task B comprised performing a comprehensive numerical and text data analysis of the workforce using exit interview data to identify the reasons …

Examining The Role Of Transformational Leadership In Reducing Employee Burnout In Vitas Healthcare: The Impact Of Leadership Behaviors On Morale And Job Satisfaction., Sabrina L. Clarke

Doctor of Strategic Leadership (DSL) Capstone Abstracts

The capstone project, Curing the Caregivers: Ending the Burnout Epidemic, examined how transformational leadership can address employee burnout among healthcare professionals. This seminar was an applied leadership project with four modules. The project aimed to educate healthcare employees about burnout and introduce transformational leadership strategies that could create healthier, more supportive work environments. This seminar took place at Vitas Healthcare in Lakeland, Florida. Pre-seminar and post-seminar questionnaires were used to evaluate participants' understanding of transformational leadership. The capstone project addressed five major themes: employee burnout, transformational leadership, employee morale, job satisfaction, leadership strategies for reducing burnout, and supportive workplace environment. …

Developing And Evaluating A Multidimensional Measure Of Pride In The Lgbtqia+ Community, Donovan Edward

College of Graduate Studies: Theses & Dissertations

Pride in LGBTQIA+ spaces has thus far been an ethereal concept with no universally agreed-upon definition. Previous literature frequently connects pride to traits such as resilience, comfort, confidence, and identity expression. This is a critical oversight, as most measures of LGBTQIA+ experiences focus on the negative aspects of queer experiences (e.g., vulnerability, victimization) or are created to evaluate non-LGBTQIA+ perceptions of LGBTQIA+ people, falsely characterizing this community in a deficit-based light. In response, this study aimed to offer a holistic definition of pride and develop a psychometrically sound measure of pride stemming from culturally salient expressions by using rigorous analytical …

Remember To Say Her Name - Addressing Black Women's Experiences Of Vicarious Police Brutality And Testing A Racial Trauma Meditation, Gabriella A. Roper

College of Graduate Studies: Theses & Dissertations

Black women and girls are disproportionately impacted by police violence, as some are victims of brutality but also as viewers of police violence videos and advocates for police reform (Williams, 2021). Yet, most media coverage centers on police brutality against Black men, rendering the suffering of Black women largely invisible. Studies indicate heightened rates of distress experienced by Black women as a result of race-based stressors, compounded by their limited access to adaptive coping mechanisms (Beauliere, 2022; Hawkins, 2022). This study investigated the psychological effects of vicarious police brutality exposure on Black women. In addition, this study evaluated the effectiveness …

Advancing Interoperability Through Governance And Sustainability: A Qualitative Comparative Case Study Of State Health Information Exchanges In The United States, Karterria Finkley

College of Graduate Studies: Theses & Dissertations

This study presents a comprehensive comparative analysis of state-level Health Information Exchanges (HIEs) across all 50 U.S. states and the District of Columbia, examining how governance structures, consent frameworks, funding models, and technical infrastructure influence interoperability maturity, sustainability, and adoption. Guided by Systems Theory and Donabedian’s Structure Process Outcome framework, the research employs a mixed-methods comparative case design integrating systematic documentary review, qualitative thematic analysis, and a policy-anchored analytic scoring methodology. Structural and policy characteristics were operationalized through standardized ordinal (1-5) metrics and aggregated into composite indices representing governance capacity, consent inclusivity, financial sustainability, and technical readiness. This approach enabled …

Examining How Engagement Strategies Of Principals Influence Teacher Retention In Urban Title I Schools, Bridgette Allen

College of Graduate Studies: Theses & Dissertations

As the teacher shortage continues to rise, it is critical for educational leaders to focus on teacher retention. Principals play a significant role in teacher retention, teacher engagement, and job satisfaction; therefore, they must implement effective engagement strategies to improve teacher retention. The purpose of this basic qualitative study is to explore how engagement strategies employed by principals at urban Title I schools contribute to teachers’ decisions to remain at these schools. The research question for this study examines teachers’ perspectives on how the engagement strategies used by their school principals influence their decision to remain in an urban Title …

Exploring Teacher Perceptions: A Comparative Analysis Of Departmentalized And Self-Contained Instructional Models In First And Second Grades, Jason R. Trotter

College of Graduate Studies: Theses & Dissertations

This qualitative multiple-case study examined the perceptions of first- and second-grade teachers who have taught in both the departmentalized and traditional self-contained instructional models. The study explored teachers’ perceived advantages and disadvantages of each model, examined how their experiences within each model influenced instructional strategies and classroom management approaches, and assessed their perceived impacts on student engagement and learning outcomes. Each grade level was a bounded case. This study was conducted at a Title I elementary school in Southeast Georgia, where both models were implemented.

Guided by social constructivism, semi-structured interviews were conducted with seven teachers (four first-grade and three …

Staff Perceptions Of The Roles, Responsibilities, And Effectiveness Of School Resource Officers In Ensuring School Safety, Jana B. Collins

College of Graduate Studies: Theses & Dissertations

School safety remains a critical concern in education, particularly in rural settings where resources, staffing, and community dynamics may differ from urban and suburban environments. The purpose of this quantitative study was to examine staff perceptions of the roles, responsibilities, and effectiveness of school resource officers in maintaining and enhancing school safety within a rural school system. A researcher-designed survey using a 4-point Likert scale was administered to teachers and staff members (N = 417). Descriptive statistics summarized overall staff perceptions, and analyses of variance (ANOVAs) examined differences based on demographic and professional characteristics. Findings indicated that staff generally …

Extracurricular Activities' Influence On High School Students' Academic Achievement, Michael Jones Jr

College of Graduate Studies: Theses & Dissertations

This quantitative study investigates the relationship between participation in extracurricular activities and academic achievement among high school students, as measured by Grade Point Average (GPA). This study uses a cross-sectional research design to analyze GPA data from Greenbrier High School in Evans, Georgia. Greenbrier is a part of the Columbia County School District and serves approximately 2,000 students. Historical data were collected from 2024-2025 school records and analyzed using t-tests and ANOVA to compare the impact of ECAs on academic achievement. The study analyzed differences in academic performance based on (a) participation versus non‑participation in ECAs, (b) the type of …