Digital Commons Network^™

Effects Of Temperature On The Life-History Traits Of Myzus Persicae And Its Efficiency In Transmitting Potato Virus Y (Pvy) In Potato Crops, Bonoukpoè M. Sokame, Henri E. Tonnang, Heidy Gamarra, Pablo Carhuapoma, Jan Kreuze, Leah R. Johnson, Ali Arab, Peter A. Armbruster, Oswaldo C. Villena

All Peer-Reviewed Publications

Aphids are highly sensitive to temperature changes and play a crucial role in transmitting plant viruses, accounting for the transmission of more than 50% of viruses that cause disease in crops. Among them, Myzus persicae is a major global pest, affecting over 400 plant species and transmitting more than 100 plant viruses, including potato virus Y (PVY), which poses a severe threat to potato crops. This study examines how temperature influences the life-history traits of M. persicae and its efficiency in transmitting PVY. Our research revealed that temperature significantly affects developmental duration, survival, and fecundity of M. persicae. The aphids …

Influence Of Farming Systems (Organic Vs. Conventional) With Crop Rotation And Intercropping On Weed Seedbank In Central Kenya, Obadiah Mwangi, Monicah Mucheru-Muna, Edward Karanja, Michael Kinyua, Peter Bolo, Dominic Mutambu, Martha Musyoka, Edwin Mwangi, Felix Matheri, Nancy Mwende, Tanga Chrysanthus, Noah Adamtey, David Bautze, Unternährer Anouk, Milka Kiboi, Anne Muriuki, Hottensiah Wambui, Job Kihara

All Peer-Reviewed Publications

Weed seedbanks are a key driver of long-term weed pressure and are strongly shaped by farming systems, crop rotation, and intercropping. This study evaluated the influence of organic (ORG) and conventional (CONV) farming systems, each managed under high (113–145 kg N·ha⁻¹, 60–83 kg P·ha⁻¹) and low (31–45 kg N·ha⁻¹ and 13–27 kg P·ha⁻¹) fertilization levels, on weed seedbank density, composition, dominance, and diversity in two long-term trials (established in 2007) at Chuka and Thika in the Central Highlands of Kenya. From 2017 to 2019, across six cropping seasons under a three-year rotation, soil …

Omega-3 Fatty Acids And Bioactives In Aqueous-Extracted Oils From Seven Edible Insects, Xavier Cheseto, Chrysantus Mbi Tanga

All Peer-Reviewed Publications

Globally, there is urgent search and research interest towards alternative sources of polyunsaturated omega-3 fatty acids (ω-3 FA) due to sustainability challenges faced by dependence on fish and plant-derived sources. Limited information exists on insects despite their promising potential. This work analyzed oils from seven insect species commonly consumed globally compared to commercial sesame oil using coupled gas chromatography-mass spectrometry (GC-MS) and liquid chromatography-mass spectrometry (LC-MS). Oil yields from insects ranged between 11.1 mg/g to 115.3 mg/g. Over 67 fatty acids, α-tocopherol [vitamin E] and eight flavonoids were identified. All insect oils contained ω-3 FA [i.e., α-linolenic acid (ALA), eicosapentaenoic …

Thermal Requirements And Phenology Modelling Of A Drosophila Suzukii Population: Implications For Pest Risk Under A Changing Climate, Shepard Ndlela, Abdelmutalab G.A. Azrag, Esther Owino Awuor, Ibrahim Maholidy Farid, Samira Abuelgasim Mohamed

All Peer-Reviewed Publications

Drosophila suzukii (spotted-wing drosophila) is an invasive pest causing significant economic losses in soft-skinned fruit crops globally. This study presents comprehensive temperature-dependent life table data and phenology models for an African D. suzukii population collected in Kenya. Developmental time, mortality, fecundity, and adult longevity were assessed under constant temperatures from 12 to 30 °C. Using Insect Life Cycle Modelling (ILCYM) software, linear and nonlinear models were applied to characterise the effects of temperature on life history traits. Additionally, spatial risk indices including Establishment Risk Index (ERI), Generation Index (GI), and Activity Index (AI) were mapped globally for current and future …

Intensified Push-Pull Technology Enhances Above-Ground Arthropod Assemblages And Ecological Balance, Evanson R. Omuse, Honest Machekano, Daniel M. Mutyambai, Bonoukpoe M. Sokame, Chrysantus M. Tanga, Johnson O. Nyasani, Sevgan Subramanian, Frank Chidawanyika

All Peer-Reviewed Publications

Agroecological intensification aims to increase farm productivity, reduce dependency on external inputs, and enhance biodiversity conservation. However, the contribution of recent sustainable agricultural practices to arthropod assemblages and their ecosystem services remains underexplored. Through a 2-year multilocation trial, we investigated the response of above-ground arthropod assemblages and their ecological functions in cowpea and maize grown under monocropping systems and diversified systems (pure and intensified push-pull technologies). Using three sampling methods (visual observations, pitfall traps, sticky traps), a total of 65, 307 arthropod specimens were collected. The most dominant arthropod taxa were Hemiptera (true bugs; 47%), followed by Thysanoptera (thrips; 17%), …

The Effectiveness Of 3d Printing Project-Based Learning In Developing Future Skills And Academic Passion Among 10th Grade Students In Physics, Asma Abdullah Alshabnuti, Salim Khamis Al Harmali, Sulaiman Mohammed Al-Balushi

Journal of Educational and Psychological Studies

The study aimed to explore the effectiveness of 3D Printing Project-based Learning in developing future skills, according to the Omani Future Skills Framework, and academic passion among 10th-grade students in physics in the Sultanate of Oman. A quasi-experimental research design was used, with a control and experimental group. The sample consisted of (114) male and female students. The Study instruments were the Future Skills Classroom Observation and the Academic Passion Scale, to gather data. Findings showed statistically significant differences in favor of the experimental group in most of future skills, except in flexibility and adaptation skill. The effect size of …

The Effectiveness Of Employing Artificial Intelligence Applications In Developing Technological Creativity For Students Of The Higher Basic Stage In Palestine, Mahmoud Mohammed Fouad Barghout, Ahmed Mohammed Abu Olba

Journal of Educational and Psychological Studies

The research aimed to discover the effectiveness of implementing artificial intelligence applications in developing technological creativity for students of the higher basic stage in Palestine, the researchers used the Quasi-experimental design, and the researchers programmed and designed artificial intelligence applications for the unit (remote sensing and control) from the technology book for the eighth grade. The researchers prepared the research tool (technological creativity test). It was applied to the research sample, which consisted of eighth grade students at Saad bin Abi Waqas Basic School (B), affiliated to the Palestinian Ministry of Education and Higher Education, where their number reached (72) …

Advancing Management Strategies For Airport Infrastructure Development: A Holistic Project Delivery And Contractual Perspective, Ramy Ahmed Anwar Ahmed Khalef

Doctoral Dissertations

The airport sector plays a vital role in the US infrastructure. Neglecting the maintenance and improvement of such critical domain poses serious repercussions. Current initiatives within the aviation sector have fallen short in providing substantial quantitative or qualitative support for comprehensive project and risk management processes. This research fills this knowledge gap. The associated objectives include: (1) identifying a holistic set of Design-Build risk factors and providing associated research recommendations; (2) enhancing the understanding of Design-Build (DB) with respect to Design-Bid-Build (DBB) on key risks impacting schedule/cost performance in airport projects; (3) establishing a risk-based benchmarking framework to evaluate schedule/cost …

Evaluating The Impact Of Telemedicine-Based Medication Education On Glycemic Control In Adult Male Veterans With Type 2 Diabetes Mellitus, Megan N. Calter

West Chester University Graduate Theses, Dissertations, and Final Projects

Veterans experience disproportionately high rates of type 2 diabetes mellitus (20.5% vs 11.6% nationally), driven by military-related factors such as PTSD, deployment-related obesity, and service-connected disabilities. At a large urban primary care clinic, 28% (40/141) of veterans with type 2 diabetes mellitus had persistently elevated HbA1c levels of ≥8%, indicating a high risk for diabetes-related complications. This quality improvement project aimed to reduce the proportion of veterans with HbA1c of ≥8% by implementing tailored telemedicine-based medication education, leveraging underutilized virtual care infrastructure to address access barriers and improve diabetes self-management. Participants received two 30-minute telemedicine medication and disease management education …

Culture Of Betrayal: Exploring Organizational Antecedents Of Institutional Betrayal And Military Sexual Trauma, Natalie Kline

West Chester University Graduate Theses, Dissertations, and Final Projects

Female service members experience disproportionately higher rates of military sexual trauma (MST) compared to their male counterparts. MST significantly increases risk for many mental health, physical health, and occupational concerns. In addition to the negative effects of MST itself, many service members also experience institutional betrayal (IB), which refers to failures of the organization to prevent or appropriately respond to traumatic events such as MST. High rates of MST and its negative consequences are well documented, but the organizational factors fostering IB are under-studied in the military population. The current study examined environmental antecedents of MST and IB guided by …

Impact Of Sepsis Order Set Optimization On Sep-1 Compliance And Clinical Outcomes: A Retrospective Data Analysis, Janelle Harding

West Chester University Graduate Theses, Dissertations, and Final Projects

Sepsis remains a leading cause of mortality, morbidity, and healthcare expenditure in the United States, with national SEP-1 compliance rates persistently near 60%. This quality improvement project evaluated whether optimizing sepsis order sets within a large, urban, Magnet-designated hospital improved adherence to the CMS SEP-1 quality measure and associated patient outcomes. Guided by the Donabedian Model, a multidisciplinary sepsis workgroup redesigned emergency department and inpatient sepsis order sets to streamline evidence-based care, enhance workflow alignment, and reduce variation in treatment. A retrospective analysis of 158 adult SEP-1 cases, with 67 cases in the preintervention group and 91 cases in the …

Human Resources Representation Models And Municipal Employee Outcomes: A Quantitative Study Of Small Pennsylvania Municipalities, John W. Crouser

West Chester University Graduate Theses, Dissertations, and Final Projects

Small municipalities operate in resource-constrained environments that shape how human resource management (HRM) is organized and experienced. This study examines whether HR representation models (in-house, delegated, outsourced, and hybrid) differ in association with employee job satisfaction and manager-reported turnover trends (RQ1), and whether delegating HR responsibilities to non-HR managers is associated with outcomes differently than other models (RQ2). Grounded in Strategic Human Capital Management, the Resource-Based View, and contingency theory, the study assesses whether HR information system (HRIS) capability is associated with turnover trends or employee satisfaction (RQ3) and whether Strategic Human Capital Management (SHCM) alignment is associated with manager-reported …

Rooted In Relationships: How Personal And Workplace Social Capital Help Sustain Principal Leadership, Megan Scelfo

West Chester University Graduate Theses, Dissertations, and Final Projects

It takes five or more years to fully realize a vision for change in any organization (Fullan, 2002; Snodgrass Rangel, 2018), yet the average tenure for a public-school principal in their same school is 4.5 years (National Center for Education Statistics [NCES], 2023). This work adds to our understanding of what factors may improve principal longevity to positively impact school effectiveness. This multiple-case study (Yin, 2018) incorporated a survey and interviews to determine how components of social capital (Bourdieu,1986; Coleman, 1988; Tsounis 2022, Wang et al., 2014) may impact the retention of Pennsylvania public school principals. The survey asked about …

A Pull Toward Independence: Improving Pessary Removal Ease And Patient Independence Using Dental Floss, Stephanie Haly

West Chester University Graduate Theses, Dissertations, and Final Projects

Pelvic Organ Prolapse and Stress Urinary Incontinence are the most common medical conditions for prescribing a vaginal pessary. Treating these conditions is vital to improve patient outcomes and quality of life. Treatment options vary from surgical options to less invasive alternatives. Due to various reasons, a patient might opt to avoid surgical management which leaves a vaginal pessary as the next best treatment option. Barriers to pessary self-management are seen frequently and can reduce patient independence and compliance. This quality improvement project sought to answer the following research question: In women using vaginal pessaries for pelvic organ prolapse or stress …

Using Text Messages To Reduce Pediatric No-Show Rates In Primary Pediatric Care, Kelly A. Rexford-Hudson

West Chester University Graduate Theses, Dissertations, and Final Projects

Pediatric appointment no-show rates lead to fragmented care, missed preventative services, delayed immunizations, and reduced clinic efficiency. Children who miss well-child and follow-up visits are at increased risk for unmanaged chronic conditions and gaps in developmental surveillance. The purpose of this Doctor of Nursing Practice quality improvement project was to evaluate whether bilingual text message reminders would decrease no-show rates in a pediatric primary care clinic. Led by the Plan-Do-Study-Act framework and Bronfenbrenner's Ecological Model, this intervention consisted of two manual text message reminders, delivered in English and Spanish, at 7 days and 2 days before scheduled appointments during a …

Poct Hgb A1c And Patient Satisfaction In Adult Patients With Diabetes, Kelly Galvin

West Chester University Graduate Theses, Dissertations, and Final Projects

Point-of-care testing (POCT) is used to measure a variety of healthcare data rapidly at the bedside. It can be particularly useful when laboratory data is not available at the time a patient sees their healthcare provider (HCP). Patients living with diabetes frequently do not obtain laboratory data prior to their visit with their HCP. This quality improvement projected aim to assess if use of POCT to measure an Hgb A1c level in patients with diabetes affected patient satisfaction in an endocrinology clinic. Eligible participants were asked to complete an anonymous survey, with three questions asking if having their Hgb A1c …

Social Dirt Or Fertile Soil: A Phenomenological Study Of Contingent Faculty, Ann M. Hiloski-Fowler

West Chester University Graduate Theses, Dissertations, and Final Projects

The experiences of contingent or adjunct faculty affect their professional identity development. Contingent faculty use has increased since the 1970s. By 2013, two-thirds of U.S. higher education faculty were contingent (Finkelstein et al., 2016). While institutions use contingent faculty to fulfill their educational missions (Haviland et al., 2017; Kezar & Sam, 2011; Kimmel & Fairchild, 2017), their status as academic laborers stigmatizes them in academia, developing what Levin and Shaker (2011) term a “hybrid identity” (p. 1479), as both professionals and laborers, professors and temporary employees. Historically, the professional status of the professoriate has been defined on the tenure track …

Factors That Impact K-6th Grade Teachers’ Sense Of Self-Efficacy: A Mixed Methods Study, Becky A. Eckburg

West Chester University Graduate Theses, Dissertations, and Final Projects

Although there have been efforts to narrow the "achievement gap," research shows that the academic achievement levels of students in low socioeconomic school settings are likely to be significantly lower than the academic achievement levels of students in higher socioeconomic school settings (Babayiğit et al., 2021; Rahman et al., 2024). Studies also show that teachers have a significant impact on their students' growth, no matter what their academic setting may be (Petek & Pope, 2023), and that collective teacher self-efficacy is a significant factor in positive student achievement (Hattie, 2008). If targeted professional development could support teachers' self-efficacy, student achievement …

Retrospective Analysis Of Calcium Administration In Patients Undergoing Massive Transfusion Protocol (Mtp), Chrissy Unton

West Chester University Graduate Theses, Dissertations, and Final Projects

Unintentional injuries have remained the third leading cause of death in the United States since 2015, with the exception of 2020. Of those deaths resulting from traumatic injury, 40% result from hemorrhage and uncontrolled blood loss. Current treatment efforts focus on early, balanced transfusion of blood products and aim to correct metabolic derangements/coagulopathies, while minimizing crystalloid administration. As such, the role hypocalcemia plays in the injury process and the importance of calcium administration in resuscitation efforts has gained traction over recent years. The aim of this retrospective analysis was to assess calcium supplementation in relation to current facility protocol for …

Urban Megaregions In The United States: A Gis-Based Approach To Defining A New Regional Geography, Jonas Rugys

West Chester University Graduate Theses, Dissertations, and Final Projects

This study investigates urban megaregions in the United States. The regional concept is examined from its origins in the geographic tradition as well as its transformation in the twentieth century to its current state. A GIS-based methodology for defining urban megaregions is presented and discussed. The results challenge existing assumptions of population and employment growth in the United States.

Improving Scoliosis Screening Protocol And Outcomes, Beverly R. Jordan

West Chester University Graduate Theses, Dissertations, and Final Projects

The purpose of this Quality Improvement (QI) project was to address outdated scoliosis screening protocols and guidelines by identifying barriers and improving outcomes. Current protocols and guidelines are not current with evidence-based practices. School nurses are mandated to conduct scoliosis screening on 6^th & 7^th graders annually using Adam’s forward bend test and a second screener for failed screens. Although this guideline attempts to use a 2^nd screener as another tool to reduce false positives, it does not address the barriers school nurses may have with these older guidelines and protocols. Scoliosis screening has fallen out of …

College Students’ Use Of Cell Phones And Their Level Of Attention To Academics, Social Relationships, And Health, Nicole L. Istvan

West Chester University Graduate Theses, Dissertations, and Final Projects

This research utilized a single case study design to examine how college students, ages 18–24, perceive their attention in relation to cell phone use within academic, social, and health-related contexts. The case was bound by undergraduate students enrolled at a public university in the northeastern United States, referred to as Tapaton University. The study employed multiple sources of data to support triangulation and credibility, while providing an in-depth exploration of a complex, real-world phenomenon.

Following Institutional Review Board approval, participants were recruited through community flyers, social media outreach, and snowball sampling. Data collection included observational field notes, a quantitative survey, …

Assessing The Mentorship Role In Neonatal Outcomes, Patricia Juhline Brunner

West Chester University Graduate Theses, Dissertations, and Final Projects

The complex environment of neonatal intensive care requires a skilled, engaged nursing workforce to maintain high‑quality outcomes. Structured mentorship is an evidence‑based strategy shown to enhance professional engagement and support improved clinical outcomes. This Doctor of Nursing Practice quality improvement project aimed to evaluate the impact of a structured clinical mentorship program on evidence‑based practice beliefs, nurse engagement, and selected neonatal outcomes in a Level III academic intensive care nursery.

Guided by the Donabedian model, the project evaluated structure through mentorship design and preparation, process through mentor–mentee interactions and workflow integration, and outcomes through nursing and patient metrics. Lewin’s change …

Serenade No.2, James C. Mechem

West Chester University Graduate Theses, Dissertations, and Final Projects

Serenade No.2 is a seventeen minute composition for Wind Symphony, dedicated to each

of my mentors in classical composition during the past 10 years: John Carbon, Brian Norcross,

Samuel Andreyev, Jay Chadwick, Adam Silverman, Robert Maggio, Ari Sussman, and Mark

Rimple. Through this composition, my goal was to both pay homage to the individuals that

helped shape my artistic voice, and to additionally connote each movement with evocative

oceanic imagery, specifically through the title of each movement in the composition. I included

this latter detail in reference to a vacation that I went on in August of 2025 to Atlantic …

Modeling The Effects Of Subsurface Tile Drainage On Atrazine And Nitrate Transport In Till Soils Of Iowa, Madison Hobbs

West Chester University Graduate Theses, Dissertations, and Final Projects

Tile drainage design influences groundwater flow pathways, residence time, and agrochemical transport in agricultural soils. This study evaluates how differences in drainage design affect subsurface flow behavior and contaminant transport in glacial till soils. A groundwater model was developed to compare conventional and controlled drainage systems with a shallow drainage system, and particle tracking was used to examine flow paths and residence times.

The results show that tile drainage creates distinct shallow and deeper flow pathways. In the conventional and controlled model, 88% of particles were captured by drains, while 12% reached the general head boundary. The shallow system drains …

Beyond The Bedtime Story Beginnings: A Qualitative Study Exploring The Phenomenon Of Family Shared Reading With Middle-Grade Children, Kelly Rorvik

West Chester University Graduate Theses, Dissertations, and Final Projects

Literacy can serve as a critical outlet for children to develop empathy and academic success. However, substantial evidence suggests that by middle school, many students develop less positive attitudes and motivations for recreational and academic reading. The purpose of this asset-based phenomenological qualitative study, framed by Attachment and Socio-Critical Literacy theory, is to examine the parental experiences of shared reading with children between the ages of 10 and 15 to understand the perceived purpose and emotional impact it has on families. The 14 participants in this study were selected through a purposive interest survey. This asset-based phenomenological study seeks to …

Play Family, Andrea Grinwis

West Chester University Graduate Theses, Dissertations, and Final Projects

Play Family is a collection of lyrical essays, letters, photographs, and poems that examine grief, using form as a means to consider and recognize what is lasting amidst the lost. Play Family explores the emotions exposed by the indelible loss when a loved one passes and also the seemingly smaller losses as children take the first hesitant steps away from parents and then the more confident steps toward a life that places parents on the periphery. Using photographs of vintage Fisher Price Little People toys and engaging memories of play to forge a path to the past, Play Family uncovers …

Real-Time Isolated Asl Recognition: Evaluating Spatial-Temporal Networks And Multimodal Llms, Raga Mouni Batchu

West Chester University Graduate Theses, Dissertations, and Final Projects

This thesis investigates the deployment of high-accuracy Isolated ASL Recognition (ISLR) in resource-constrained edge environments. We train a lightweight Spatio-Temporal Attention Network (SSTAN,∼2.7 M parameters,∼10 MB) on the WLASL-100 benchmark, achieving 75.25% Top-1 and 88.24% Top-5 accuracy with 139 ms CPU-only inference. A systematic comparison against frontier multimodal LLMs (Gemini 3 Flash, Gemini 3.1 Pro, Qwen 3 VL) shows SSTAN outperforms the best LLM baseline by∼1.85×in accuracy while being 22–230×faster and up to 40×cheaper annually. The LLMs’ core limitation is a lack of fine-grained temporal perception; they impose English-language semantic priors rather than learning the articulatory distinctions that define ASL …

Empowerment Vs. Oversight: Student Perspectives On Classroom Genai Policies, Jessica A. Drass

West Chester University Graduate Theses, Dissertations, and Final Projects

The widespread availability of generative artificial intelligence (GenAI) tools and their rapid evolution has prompted faculty and institutions to develop classroom policies in effort to manage use, yet little empirical research exists on how such policies impact students. This qualitative study sought to explore how higher education students define academic integrity and GenAI’s place within it, how they perceive and evaluate classroom GenAI policies, and how such policies shape their academic self-efficacy, motivation, and engagement. Semi-structured interviews were conducted with sixteen undergraduate and graduate students at a mid-sized public university located in the Mid-Atlantic region of the United States. Interview …

Beyond Superpowers And Stereotypes: Female High School Band Directors Navigating Gendered Expectations In Leadership, Rachael L. Urquhart

West Chester University Graduate Theses, Dissertations, and Final Projects

Female high school band directors (FHSBDs) are significantly underrepresented (approx. 25%) in a male-dominated field. This inequity is sustained by societal gender stereotypes that create a double standard for traits like assertiveness and empathy. This mixed-methods study examined the leadership perceptions and career aspirations of female music teachers and highlighted the career obstacles and encouragements of female high school band directors (FHSBDs) by applying feminist theory to gender roles, self-concept, and leadership conceptualization. A survey of female music teachers yielded 89 responses. Then, 10 FSHBDs participated in a narrative-mapping activity and follow-up interview.

Survey data confirmed that leadership is a …